The document discusses construction equipment, specifically earthmoving equipment. It provides details on various types of earthmoving equipment including tractors, bulldozers, and their components and uses. Tractors can be fitted with tools like blades and buckets to perform earthmoving tasks. Bulldozers have blades attached to push soil and are well-suited for tasks like clearing land, excavating, and grading. The selection of the proper equipment depends on factors like the job conditions and materials being moved.
1. The document discusses site layout, which is a scaled drawing showing relevant construction site features such as entry/exit points, storage areas, temporary services, and contractor offices. It is important for efficient work flow and safety.
2. Key factors in site layout planning include the project nature, construction methods, resource availability, and safety considerations. The layout should optimize space utilization and minimize transport time/costs.
3. A well-planned site layout provides benefits like smooth and economical work, reduced completion time, increased safety and output, and less material waste.
This document provides information on various types of earthmoving construction equipment. It discusses tractors and bulldozers in detail as two key pieces of earthmoving equipment. Tractors can be fitted with different attachments and are used for tasks like land clearing while bulldozers have blades attached to push earth and are used for operations like clearing land, constructing roads, and backfilling. The document emphasizes that proper selection of construction equipment depends on factors like the type of work, site conditions, equipment specifications, and cost considerations.
This document discusses different types of special concrete and factors that affect the durability of concrete. It describes 10 types of special concrete: 1) light weight concrete, 2) polymer modified concrete, 3) fiber reinforced concrete, 4) high performance concrete, 5) pumped concrete, 6) roller compacted concrete, 7) self-compacting concrete, 8) high density concrete, 9) ready mixed concrete, and 10) green concrete. It also discusses recycled concrete and various methods to improve the durability of concrete structures. The document provides details on the composition, properties and applications of these special concretes.
1. The compressive strength of concrete is one of its most important properties and is generally determined by testing cubes or cylinders at 28 days. Strength depends on factors like water-cement ratio, cement content, curing conditions, and aggregate size and type.
2. The water-cement ratio has a significant effect on strength, with lower ratios producing stronger concrete according to Abrams' law. Other factors like gel/space ratio and maturity (temperature over time) also influence strength development.
3. In addition to compressive strength, concrete has tensile, flexural, and shear capacities that relate to its compressive strength. Its elastic properties include modulus of elasticity and shrinkage/creep behaviors
The document provides information on concrete mix design, including the objectives and factors governing mix design. It discusses statistical quality control and acceptance criteria for concrete testing. It also describes different concrete mix design methods according to Indian standards and ACI, including the required tables and steps for mix design. Mix designs are provided for M30 concrete using normal aggregates and with fly ash as a replacement.
The document discusses the properties of fresh concrete, including workability, segregation, and bleeding. It defines these properties and describes factors that affect workability, such as water content, mix proportions, aggregate size and shape, and use of admixtures. Methods for measuring workability, including slump test, compacting factor test, flow table test, and Vee Bee consistometer test are also summarized. Segregation and bleeding are defined as types of concrete separation, and factors influencing these properties are outlined.
Concrete is a mixture of cement, sand, gravel, and water that hardens into a building material. It is the second most consumed substance on Earth after water. Concrete is made by mixing cement and water to form a paste that is then mixed with fine and coarse aggregates. The paste coats the surface of the aggregates and binds them together into a rock-like mass once hardened. Concrete's strength comes from reinforcement like steel bars for buildings and structures.
The document discusses the types, properties, and classifications of aggregates used to make concrete. It describes how aggregates provide bulk and strength to concrete while reducing shrinkage. Various tests are used to evaluate the size, shape, strength, density and other physical properties of aggregates to ensure they will perform well when used to manufacture durable concrete.
This document provides information on common types of construction materials used for flooring in India. It discusses clay tiles, ceramic tiles, vitrified tiles, mosaic floors, marble floors, granite floors, concrete floors and various natural stone floors. For each type, it describes what they are made of, their properties, advantages, disadvantages and common applications. It also provides details on the manufacturing process for tiles, pavers blocks and laying different types of flooring.
Steel is a versatile building material that can be manufactured in various forms like sections, bars, plates, and sheets to serve both structural and non-structural purposes in construction. Different types and grades of steel like mild steel, high carbon steel, high tensile steel, and reinforced bars have specific chemical compositions and mechanical properties making them suitable for uses like building frames, reinforcement, tools, and machine parts. Rolled sections, bars, plates, and sheets are designated according to their dimensions, weight, and other specifications to uniquely identify the type and size of each steel product.
This document discusses building construction materials, specifically bricks. It covers the constituents needed for good brick earth, the manufacturing process of bricks which involves preparation of clay, moulding, drying, and burning. It describes hand moulding and machine moulding methods. Bricks can be burnt using clamp burning or kiln burning. Finally, it classifies burnt bricks into four categories based on their manufacturing and preparation: first class, second class, third class, and fourth class bricks.
Preface: The ReGenX Generator innovation operates with a US Patented Frequency Dependent Load
Current Delay which delays the creation and storage of created Electromagnetic Field Energy around
the exterior of the generator coil. The result is the created and Time Delayed Electromagnetic Field
Energy performs any magnitude of Positive Electro-Mechanical Work at infinite efficiency on the
generator's Rotating Magnetic Field, increasing its Kinetic Energy and increasing the Kinetic Energy of
an EV or ICE Vehicle to any magnitude without requiring any Externally Supplied Input Energy. In
Electricity Generation applications the ReGenX Generator innovation now allows all electricity to be
generated at infinite efficiency requiring zero Input Energy, zero Input Energy Cost, while producing
zero Greenhouse Gas Emissions, zero Air Pollution and zero Nuclear Waste during the Electricity
Generation Phase. In Electric Motor operation the ReGen-X Quantum Motor now allows any
magnitude of Work to be performed with zero Electric Input Energy.
Demonstration Protocol: The demonstration protocol involves three prototypes;
1. Protytpe #1, demonstrates the ReGenX Generator's Load Current Time Delay when compared
to the instantaneous Load Current Sine Wave for a Conventional Generator Coil.
2. In the Conventional Faraday Generator operation the created Electromagnetic Field Energy
performs Negative Work at infinite efficiency and it reduces the Kinetic Energy of the system.
3. The Magnitude of the Negative Work / System Kinetic Energy Reduction (in Joules) is equal to
the Magnitude of the created Electromagnetic Field Energy (also in Joules).
4. When the Conventional Faraday Generator is placed On-Load, Negative Work is performed and
the speed of the system decreases according to Lenz's Law of Induction.
5. In order to maintain the System Speed and the Electric Power magnitude to the Loads,
additional Input Power must be supplied to the Prime Mover and additional Mechanical Input
Power must be supplied to the Generator's Drive Shaft.
6. For example, if 100 Watts of Electric Power is delivered to the Load by the Faraday Generator,
an additional >100 Watts of Mechanical Input Power must be supplied to the Generator's Drive
Shaft by the Prime Mover.
7. If 1 MW of Electric Power is delivered to the Load by the Faraday Generator, an additional >1
MW Watts of Mechanical Input Power must be supplied to the Generator's Drive Shaft by the
Prime Mover.
8. Generally speaking the ratio is 2 Watts of Mechanical Input Power to every 1 Watt of Electric
Output Power generated.
9. The increase in Drive Shaft Mechanical Input Power is provided by the Prime Mover and the
Input Energy Source which powers the Prime Mover.
10. In the Heins ReGenX Generator operation the created and Time Delayed Electromagnetic Field
Energy performs Positive Work at infinite efficiency and it increases the Kinetic Energy of the
system.
The document discusses construction equipment, specifically earthmoving equipment. It provides details on various types of earthmoving equipment including tractors, bulldozers, and their components and uses. Tractors can be fitted with tools like blades and buckets to perform earthmoving tasks. Bulldozers have blades attached to push soil and are well-suited for tasks like clearing land, excavating, and grading. The selection of the proper equipment depends on factors like the job conditions and materials being moved.
1. The document discusses site layout, which is a scaled drawing showing relevant construction site features such as entry/exit points, storage areas, temporary services, and contractor offices. It is important for efficient work flow and safety.
2. Key factors in site layout planning include the project nature, construction methods, resource availability, and safety considerations. The layout should optimize space utilization and minimize transport time/costs.
3. A well-planned site layout provides benefits like smooth and economical work, reduced completion time, increased safety and output, and less material waste.
This document provides information on various types of earthmoving construction equipment. It discusses tractors and bulldozers in detail as two key pieces of earthmoving equipment. Tractors can be fitted with different attachments and are used for tasks like land clearing while bulldozers have blades attached to push earth and are used for operations like clearing land, constructing roads, and backfilling. The document emphasizes that proper selection of construction equipment depends on factors like the type of work, site conditions, equipment specifications, and cost considerations.
This document discusses different types of special concrete and factors that affect the durability of concrete. It describes 10 types of special concrete: 1) light weight concrete, 2) polymer modified concrete, 3) fiber reinforced concrete, 4) high performance concrete, 5) pumped concrete, 6) roller compacted concrete, 7) self-compacting concrete, 8) high density concrete, 9) ready mixed concrete, and 10) green concrete. It also discusses recycled concrete and various methods to improve the durability of concrete structures. The document provides details on the composition, properties and applications of these special concretes.
1. The compressive strength of concrete is one of its most important properties and is generally determined by testing cubes or cylinders at 28 days. Strength depends on factors like water-cement ratio, cement content, curing conditions, and aggregate size and type.
2. The water-cement ratio has a significant effect on strength, with lower ratios producing stronger concrete according to Abrams' law. Other factors like gel/space ratio and maturity (temperature over time) also influence strength development.
3. In addition to compressive strength, concrete has tensile, flexural, and shear capacities that relate to its compressive strength. Its elastic properties include modulus of elasticity and shrinkage/creep behaviors
The document provides information on concrete mix design, including the objectives and factors governing mix design. It discusses statistical quality control and acceptance criteria for concrete testing. It also describes different concrete mix design methods according to Indian standards and ACI, including the required tables and steps for mix design. Mix designs are provided for M30 concrete using normal aggregates and with fly ash as a replacement.
The document discusses the properties of fresh concrete, including workability, segregation, and bleeding. It defines these properties and describes factors that affect workability, such as water content, mix proportions, aggregate size and shape, and use of admixtures. Methods for measuring workability, including slump test, compacting factor test, flow table test, and Vee Bee consistometer test are also summarized. Segregation and bleeding are defined as types of concrete separation, and factors influencing these properties are outlined.
Concrete is a mixture of cement, sand, gravel, and water that hardens into a building material. It is the second most consumed substance on Earth after water. Concrete is made by mixing cement and water to form a paste that is then mixed with fine and coarse aggregates. The paste coats the surface of the aggregates and binds them together into a rock-like mass once hardened. Concrete's strength comes from reinforcement like steel bars for buildings and structures.
The document discusses the types, properties, and classifications of aggregates used to make concrete. It describes how aggregates provide bulk and strength to concrete while reducing shrinkage. Various tests are used to evaluate the size, shape, strength, density and other physical properties of aggregates to ensure they will perform well when used to manufacture durable concrete.
This document provides information on common types of construction materials used for flooring in India. It discusses clay tiles, ceramic tiles, vitrified tiles, mosaic floors, marble floors, granite floors, concrete floors and various natural stone floors. For each type, it describes what they are made of, their properties, advantages, disadvantages and common applications. It also provides details on the manufacturing process for tiles, pavers blocks and laying different types of flooring.
Steel is a versatile building material that can be manufactured in various forms like sections, bars, plates, and sheets to serve both structural and non-structural purposes in construction. Different types and grades of steel like mild steel, high carbon steel, high tensile steel, and reinforced bars have specific chemical compositions and mechanical properties making them suitable for uses like building frames, reinforcement, tools, and machine parts. Rolled sections, bars, plates, and sheets are designated according to their dimensions, weight, and other specifications to uniquely identify the type and size of each steel product.
This document discusses building construction materials, specifically bricks. It covers the constituents needed for good brick earth, the manufacturing process of bricks which involves preparation of clay, moulding, drying, and burning. It describes hand moulding and machine moulding methods. Bricks can be burnt using clamp burning or kiln burning. Finally, it classifies burnt bricks into four categories based on their manufacturing and preparation: first class, second class, third class, and fourth class bricks.
Preface: The ReGenX Generator innovation operates with a US Patented Frequency Dependent Load
Current Delay which delays the creation and storage of created Electromagnetic Field Energy around
the exterior of the generator coil. The result is the created and Time Delayed Electromagnetic Field
Energy performs any magnitude of Positive Electro-Mechanical Work at infinite efficiency on the
generator's Rotating Magnetic Field, increasing its Kinetic Energy and increasing the Kinetic Energy of
an EV or ICE Vehicle to any magnitude without requiring any Externally Supplied Input Energy. In
Electricity Generation applications the ReGenX Generator innovation now allows all electricity to be
generated at infinite efficiency requiring zero Input Energy, zero Input Energy Cost, while producing
zero Greenhouse Gas Emissions, zero Air Pollution and zero Nuclear Waste during the Electricity
Generation Phase. In Electric Motor operation the ReGen-X Quantum Motor now allows any
magnitude of Work to be performed with zero Electric Input Energy.
Demonstration Protocol: The demonstration protocol involves three prototypes;
1. Protytpe #1, demonstrates the ReGenX Generator's Load Current Time Delay when compared
to the instantaneous Load Current Sine Wave for a Conventional Generator Coil.
2. In the Conventional Faraday Generator operation the created Electromagnetic Field Energy
performs Negative Work at infinite efficiency and it reduces the Kinetic Energy of the system.
3. The Magnitude of the Negative Work / System Kinetic Energy Reduction (in Joules) is equal to
the Magnitude of the created Electromagnetic Field Energy (also in Joules).
4. When the Conventional Faraday Generator is placed On-Load, Negative Work is performed and
the speed of the system decreases according to Lenz's Law of Induction.
5. In order to maintain the System Speed and the Electric Power magnitude to the Loads,
additional Input Power must be supplied to the Prime Mover and additional Mechanical Input
Power must be supplied to the Generator's Drive Shaft.
6. For example, if 100 Watts of Electric Power is delivered to the Load by the Faraday Generator,
an additional >100 Watts of Mechanical Input Power must be supplied to the Generator's Drive
Shaft by the Prime Mover.
7. If 1 MW of Electric Power is delivered to the Load by the Faraday Generator, an additional >1
MW Watts of Mechanical Input Power must be supplied to the Generator's Drive Shaft by the
Prime Mover.
8. Generally speaking the ratio is 2 Watts of Mechanical Input Power to every 1 Watt of Electric
Output Power generated.
9. The increase in Drive Shaft Mechanical Input Power is provided by the Prime Mover and the
Input Energy Source which powers the Prime Mover.
10. In the Heins ReGenX Generator operation the created and Time Delayed Electromagnetic Field
Energy performs Positive Work at infinite efficiency and it increases the Kinetic Energy of the
system.
Lecture -3 Cold water supply system.pptxrabiaatif2
油
The presentation on Cold Water Supply explored the fundamental principles of water distribution in buildings. It covered sources of cold water, including municipal supply, wells, and rainwater harvesting. Key components such as storage tanks, pipes, valves, and pumps were discussed for efficient water delivery. Various distribution systems, including direct and indirect supply methods, were analyzed for residential and commercial applications. The presentation emphasized water quality, pressure regulation, and contamination prevention. Common issues like pipe corrosion, leaks, and pressure drops were addressed along with maintenance strategies. Diagrams and case studies illustrated system layouts and best practices for optimal performance.
Optimization of Cumulative Energy, Exergy Consumption and Environmental Life ...J. Agricultural Machinery
油
Optimal use of resources, including energy, is one of the most important principles in modern and sustainable agricultural systems. Exergy analysis and life cycle assessment were used to study the efficient use of inputs, energy consumption reduction, and various environmental effects in the corn production system in Lorestan province, Iran. The required data were collected from farmers in Lorestan province using random sampling. The Cobb-Douglas equation and data envelopment analysis were utilized for modeling and optimizing cumulative energy and exergy consumption (CEnC and CExC) and devising strategies to mitigate the environmental impacts of corn production. The Cobb-Douglas equation results revealed that electricity, diesel fuel, and N-fertilizer were the major contributors to CExC in the corn production system. According to the Data Envelopment Analysis (DEA) results, the average efficiency of all farms in terms of CExC was 94.7% in the CCR model and 97.8% in the BCC model. Furthermore, the results indicated that there was excessive consumption of inputs, particularly potassium and phosphate fertilizers. By adopting more suitable methods based on DEA of efficient farmers, it was possible to save 6.47, 10.42, 7.40, 13.32, 31.29, 3.25, and 6.78% in the exergy consumption of diesel fuel, electricity, machinery, chemical fertilizers, biocides, seeds, and irrigation, respectively.
Were excited to share our product profile, showcasing our expertise in Industrial Valves, Instrumentation, and Hydraulic & Pneumatic Solutions.
We also supply API-approved valves from globally trusted brands, ensuring top-notch quality and internationally certified solutions. Lets explore valuable business opportunities together!
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As authorized partners of trusted global brands, we deliver high-quality solutions tailored to meet your industrial needs with seamless support.
The Golden Gate Bridge a structural marvel inspired by mother nature.pptxAkankshaRawat75
油
The Golden Gate Bridge is a 6 lane suspension bridge spans the Golden Gate Strait, connecting the city of San Francisco to Marin County, California.
It provides a vital transportation link between the Pacific Ocean and the San Francisco Bay.
This presentation provides an in-depth analysis of structural quality control in the KRP 401600 section of the Copper Processing Plant-3 (MOF-3) in Uzbekistan. As a Structural QA/QC Inspector, I have identified critical welding defects, alignment issues, bolting problems, and joint fit-up concerns.
Key topics covered:
Common Structural Defects Welding porosity, misalignment, bolting errors, and more.
Root Cause Analysis Understanding why these defects occur.
Corrective & Preventive Actions Effective solutions to improve quality.
Team Responsibilities Roles of supervisors, welders, fitters, and QC inspectors.
Inspection & Quality Control Enhancements Advanced techniques for defect detection.
Applicable Standards: GOST, KMK, SNK Ensuring compliance with international quality benchmarks.
This presentation is a must-watch for:
QA/QC Inspectors, Structural Engineers, Welding Inspectors, and Project Managers in the construction & oil & gas industries.
Professionals looking to improve quality control processes in large-scale industrial projects.
Download & share your thoughts! Let's discuss best practices for enhancing structural integrity in industrial projects.
Categories:
Engineering
Construction
Quality Control
Welding Inspection
Project Management
Tags:
#QAQC #StructuralInspection #WeldingDefects #BoltingIssues #ConstructionQuality #Engineering #GOSTStandards #WeldingInspection #QualityControl #ProjectManagement #MOF3 #CopperProcessing #StructuralEngineering #NDT #OilAndGas
Air pollution is contamination of the indoor or outdoor environment by any ch...dhanashree78
油
Air pollution is contamination of the indoor or outdoor environment by any chemical, physical or biological agent that modifies the natural characteristics of the atmosphere.
Household combustion devices, motor vehicles, industrial facilities and forest fires are common sources of air pollution. Pollutants of major public health concern include particulate matter, carbon monoxide, ozone, nitrogen dioxide and sulfur dioxide. Outdoor and indoor air pollution cause respiratory and other diseases and are important sources of morbidity and mortality.
WHO data show that almost all of the global population (99%) breathe air that exceeds WHO guideline limits and contains high levels of pollutants, with low- and middle-income countries suffering from the highest exposures.
Air quality is closely linked to the earths climate and ecosystems globally. Many of the drivers of air pollution (i.e. combustion of fossil fuels) are also sources of greenhouse gas emissions. Policies to reduce air pollution, therefore, offer a win-win strategy for both climate and health, lowering the burden of disease attributable to air pollution, as well as contributing to the near- and long-term mitigation of climate change.
Indian Soil Classification System in Geotechnical EngineeringRajani Vyawahare
油
This PowerPoint presentation provides a comprehensive overview of the Indian Soil Classification System, widely used in geotechnical engineering for identifying and categorizing soils based on their properties. It covers essential aspects such as particle size distribution, sieve analysis, and Atterberg consistency limits, which play a crucial role in determining soil behavior for construction and foundation design. The presentation explains the classification of soil based on particle size, including gravel, sand, silt, and clay, and details the sieve analysis experiment used to determine grain size distribution. Additionally, it explores the Atterberg consistency limits, such as the liquid limit, plastic limit, and shrinkage limit, along with a plasticity chart to assess soil plasticity and its impact on engineering applications. Furthermore, it discusses the Indian Standard Soil Classification (IS 1498:1970) and its significance in construction, along with a comparison to the Unified Soil Classification System (USCS). With detailed explanations, graphs, charts, and practical applications, this presentation serves as a valuable resource for students, civil engineers, and researchers in the field of geotechnical engineering.
Indian Soil Classification System in Geotechnical EngineeringRajani Vyawahare
油
Advance Management for Civil Engineering
1. Unit no. 6
Advance Management
Mr. Kiran R. Patil
Assistant Professor,
Department of Civil Engineering,
D. Y. Patil College of Engineering & Technology, Kolhapur
2. Site Layout:
A site layout is a scaled drawing of the propose construction site showing all relevant
features such as,
Entry point
Exit point
Storage are of materials-bricks-cement-sand-aggregate
Temporary services-washing and toilet
Contractor site office
Area of keeping equipment such as mixer
Bar bending area o Labor housing
A site layout is prepared to promise that work proceeds smoothly without any obstruction.
The various construction resources such as material, men, machinery etc. should be
arranged in such way to achieve optimal utilization of space. The larger and more complex
the project, greater will be the need for planned job layout and detailing at site.
Job layout can be defined as a site drawing of the proposed construction showing the
location of entry, exit, temporary services, material stores and stocks, plant or equipment
and site offices.
The larger and more complex the project, greater will be the need for planned job layout
and detailing at site.
3. Purpose of preparing site layout
To save time in delivering construction material at the side of construction
To safeguard construction material from damage and deterioration
To keep the lead of cartage minimum, so that cartage expenses may be minimum
To adopt the best mode of working
To complete the work with the minimum use of equipment and machinery
To take maximum output from labor and machinery
To provide safety to workers and passer-by etc.
To avoid damage due to construction activities to the nearby properties
To common use materials as fine and coarse aggregate should be stored to near to each
other
To store construction materials as near the place of the utilization as possible
Advantage of a good site layout
Smooth and economical working of the project.
Reduces the completion time of the project.
Provide more safety in the working of the project.
Material wastage and deterioration are reduced.
Material transactions becomes easy, speedy and economical.
Increase the output of labour and machinery.
4. Factor affection Site layout:
Nature of the project:
This will play a great roll in the preparation of the job layout. If it is a multi-storied building
Project, then it will require a centrally located lay out scheme. On the other hand, if for
Example, it is a highway construction project, then it will require a number of construction
Centrist suitable locations.
Construction method:
The construction can be either cast-in situ or by precast elements. if it is to be of precast
Elements, the provision for a casting yard suit be included in the job layout.
Availability of resources:
In executing a project, various types of resources such as neighbor, plant and equipment,
materials, etc. are required.
If the labor is from the outside the area, then layout will have to take in to account the food,
temporary housing, washing and either facility required by them.
They should be well protected from damage due to atmospheric and whether effects Pilferage
of material should not occur.
Medical facility:
If it is a big and complex type of project, then it is desirable that a field medical facility is
provided.
5. Contractors/site engineers offices:
There should be located preferably in a noise free are for batter co-ordination
Provision for temporary roads:
These are necessary to transport the necessary plant, machinery and material required for the
project and also to provide the access to the construction site form the existing nearby roads
Other facilitys:
Necessary provision of service such as supply of power, telephone connection and also
repaired and maintenance yards should be made.
Principal used for preparation of job layout
1. Administrative block-
The administration block should be located near the main Entrance of the project site, so that
the visitor do not require to move long in construction area. In the reduction chance of
accidents to the visitors
2. Material storage-
Store should be preferably located near the administration block so that incoming material
can be easily stored and outgoing material can be watch properly
3. Entry and exits
For easy flow of traffic entry and exit should be at different locations
4. Location of workshop-
workshop for welding, fitting electrication carpenter and mechanical etc. Should be located
near the site of work and easy Roads
6. 5. Service-
Services like temporary telephone line ,water supply line should be properly planned in site
layout .
6. Temporary roads-
Temporary Roads should be planned in site layout for easy handling of materials and
equipment.
7. Labor accommodation-
In the site layout labor quarters should be located away from the actual work site at silent
place all the labor should be located at one place so that service can be made available easily.
10. Importance of Safety
Construction accounts for most of the injuries. The rate of disabling accidents in
construction industry is roughly twice the rate of other industries and the death rate is
roughly three times that of other industries. The construction industry is employing the
largest labour force in the country. About 73 % of the total workforce is unskilled and
uneducated. They have to work under tough outdoor climatic conditions.
Human life is precious and it should be the duty of all stakeholders to make the
construction site a safe place to work.
The reasons for considering safety are,
Human aspect
When the accident happens, the resulting suffering of the injured workers and their
families is difficult to quantify in economic terms.
Economic aspect
The direct costs of accidents are medical care expenses for injured, workmens
compensation costs, increased insurance premiums, replacement cost of damaged
equipment, fees of lawyers, etc.
The indirect costs of accidents are slowdown in operation, productivity time lost by
injured worker and fellow workers, extra administrative work, etc.
11. Legal aspect
As per different acts and laws, the employer should look after the safety of the employee.
Violation of these laws will be subject to punishment.
Organizational Image aspect
A good safety record produces higher morale and productivity and stronger employee
loyalty. It also improves the companys public image.
Causes of Accidents
An accident is an unplanned, undesired, unexpected and uncontrolled event resulting in
the loss of production, injury to the person, and damage equipment, in the course of
employment.
The causes of accidents are,
Lack of planning and organization
Defects in technical planning
Fixing unsuitable time-limits and targets too difficult to achieve
Assignment of work to incompetent contractors or persons.
Lack of coordination between different departments.
Inadequate preparation for work
Inadequate instructions regarding the work
Employment of unskilled or untrained workers
Inadequate supervision of work
12. Use of improper building material.
Unsafe material handling and storage.
Fall from heights.
Electric shocks
Struck by falling objects
Caving in of sides of excavated deep trenches.
Unsafe scaffolding and ladders.
Absence of railing projections at upper floors.
Unsuitable equipment.
Defects in equipment.
Lack of safety devices and measures.
Improper operations of lifts and cranes.
Unskilled or untrained operators.
Lack of effective communication.
Lack of security at the work site.
Lack of safety training.
Workers carelessness
Unauthorized irresponsible acts by workers.
Consumption of drugs or alcohol, Not using protective wears., Improper clothing
,Inadequate ventilation and illumination, Unshored trenches
13. Various Safety Equipment used on site
1. Eye and Face Protection
Safety glasses or face shields are worn any time work operations can cause foreign objects
to get in the eye. For example, during welding, cutting, grinding, nailing (or when working
with concrete and/or harmful chemicals or when exposed to flying particles). Wear when
exposed to any electrical hazards, including working on energized electrical systems.
Eye and face protectors select based on anticipated hazards.
2. Foot Protection
Construction workers should wear work shoes or boots with slip-resistant and puncture-
resistant soles.
Safety-toed footwear is worn to prevent crushed toes when working around heavy
equipment or falling objects.
3. Hand Protection
Gloves should fit tightly.
Workers should wear the right gloves for the job (examples: heavy-duty rubber gloves for
concrete work; welding gloves for welding; insulated gloves and sleeves when exposed to
electrical hazards).
4. Head Protection
Wear hard hats where there is a potential for objects falling from above, bumps to the head
from fixed objects, or of accidental head contact with electrical hazards.
Hard hats routinely inspect them for dents, cracks or deterioration; replace after a heavy
blow or electrical shock; maintain in good condition.
14. 5. Hearing Protection
Use earplugs/earmuffs in high noise work areas where chainsaws or heavy equipment are
used; clean or replace earplugs regularly.
Work Study:
It is important management tool to achieve higher productivity. It is primarily related to
human work, method of doing work & standard of performance.
The survival of any organisation is depends on use of latest technology & efficient method
of production. The efficiency of production should be improve to produce better quality
product at reduced cost. It requires efficient use of resources.
Work study or work analysis is the discipline of industrial engineering that uses various
techniques to quantitatively measure or estimate work to increase the amount produced
from a given quantity of resources by improving the use of existing resources.
Definition
Work study is defined as that body of knowledge concerned with the analysis of the work
methods and the equipment used in performing a job, the design of an optimum work
method and the standardization of proposed work methods.
Work study is also understood as a systematic objective and critical examination of the
factors affecting productivity for the purpose of improvement. It make use of techniques
of method study and work measurement to ensure the best possible use of human and
material resources in carrying out specific activity.
15. Objectives of Work Study
To analyze the present method of doing a job , systematically in order to develop a new
and better method
To measure the work content of a job by measuring the time required to do the job for a
qualified worker and hence to establish standard time.
To increase the productivity by ensuring the best possible use of human, machine and
material resources and to achieve best quality product/service at minimum possible cost.
To improve operational efficiency.
16. Basic work study Procedure:
Select the job or the process or the operation to be studied
Record all relevant facts about the job or process or operation using suitable charting
techniques such as operation process charts, flow process charts etc..
Examine critically all the recorded facts ,questioning the purpose place, sequence, person
and the means of doing the job/process/operation.
Develop the new method for the job/process/operation
Measure the work content and establish the standard time using an appropriate work
measurement technique
Define the new method for the job/process/operation
Install the new method as standard practice.
Maintain the new method for the job/process/operation
Benefits of Work Study
Increased productivity and operational efficiency.
Reduced material cost.
Improved work place layout.
Better manpower planning and capacity planning.
Fair wages to employees.
Better working conditions to employees.
Improved workflow
17. Method study
Work methods analysis or methods study is a scientific technique of observing, recording
and critically examining the present method of performing a task or job operation with the
aim of improving the present method and developing a new and cheaper method.
Objectives of methods study
To study the existing / proposed method of doing any job or activity.
To develop an improved method to improve productivity and to reduce operating cost.
To reduce excessive material handling movement and thereby reduce fatigue of workmen.
To improve utilization of workers.
To eliminate wasteful and inefficient motions.
To standardize work methods or processes, working conditions, machinery, equipment and
tools.
Advantages of Method study
Work simplification
Improved working methods
Better product quality
Improved workplace layout
Improved equipment design
Better working conditions
Better material handling and lesser material handling cost
18. Improved work flow
Less fatigue to operator
Optimum utilization of all resources
Higher safety to work men
Shorter production cycle time
Higher job satisfaction of workmen
Reduce material consumption and wastage
Reduced manufacturing cost and higher productivity
Factors facilitating Methods Study
High operating cost
High wastage and scarp
Excessive movement of material and workmen
Excessive production bottlenecks
Complaints about quality
Complaints about poor working conditions
Increasing number of accidents
Excessive use of overtime
19. ISO 9000:
The ISO-9000 family of standards listed below has been developed to assist organizations,
of all types and sizes, to implement and operate effective quality management systems.
ISO 9000 describes fundamentals of quality management systems and specifies the
terminology for quality management systems.
ISO 9001 specifies requirements for a quality management system where an organization
needs to demonstrate its ability to provide products that fulfil customer and applicable
regulatory requirements and aims to enhance customer satisfaction.
ISO 9004 provides guidelines that consider both the effectiveness and efficiency of the
quality management system. The aim of this standard is improvement of the performance
of the organization and satisfaction of customers and other interested parties.
ISO 19011 provides guidance on auditing quality and environmental management
systems.
Together they form a coherent set of quality management system standards facilitating
mutual understanding in national and international trade.
Quality management principles
To lead and operate an organization successfully, it is necessary to direct and control it in a
systematic and transparent manner. Success can result from implementing and maintaining
a management system that is designed to continually improve performance while
addressing the needs of all interested parties. Managing an organization encompasses
quality management amongst other management disciplines.
20. Eight quality management principles have been identified that can be used by top
management in order to lead the organization towards improved performance.
a) Customer focus
Organizations depend on their customers and therefore should understand current and
future customer needs, should meet customer requirements and strive to exceed customer
expectations.
b) Leadership
Leaders establish unity of purpose and direction of the organization. They should create
and maintain the internal environment in which people can become fully involved in
achieving the organization's objectives.
c) Involvement of people
People at all levels are the essence of an organization and their full involvement enables
their abilities to be used for the organization's benefit.
d) Process approach
A desired result is achieved more efficiently when activities and related resources are
managed as a process.
e) System approach to management
Identifying, understanding and managing interrelated processes as a system contributes to
the organization's effectiveness and efficiency in achieving its objectives.
f) Continual improvement
Continual improvement of the organization's overall performance should be a permanent
objective of the organization.
21. g) Factual approach to decision making
Effective decisions are based on the analysis of data and information.
h) Mutually beneficial supplier relationships
An organization and its suppliers are interdependent and a mutually beneficial relationship
enhances the ability of both to create value.
These eight quality management principles form the basis for the quality management
system standards within the ISO 9000 family.
Scope
This International Standard describes fundamentals of quality management systems,
which form the subject of the ISO 9000 family, and defines related terms.
This International Standard is applicable to the following:
a) organizations seeking advantage through the implementation of a quality management
system;
b) organizations seeking confidence from their suppliers that their product requirements will
be satisfied;
c) users of the products;
d) those concerned with a mutual understanding of the terminology used in quality
management (e.g. suppliers, customers, regulators);
e) those internal or external to the organization who assess the quality management system or
audit it for conformity with the requirements of ISO 9001 (e.g. auditors, regulators,
certification/registration bodies);
22. f) those internal or external to the organization who give advice or training on the quality
management system appropriate to that organization;
g) developers of related standards.