Method stm lean concrete
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This method statement describes the process for constructing lean concrete for building works. It involves excavating or backfilling to the design level, setting formworks, placing ready-mix concrete, compacting and curing the concrete. Appendix A provides plans of the three main buildings while Appendix B contains formwork designs and details on typical filling materials. The sequence of works includes preparing the ground, installing formworks, pouring and compacting the concrete, then curing it before moving on to dewatering, electricity supply and use of equipment.
Method stm lean concrete
- 1. METHOD STATEMENT Table of contents of LEAN CONCRETE for BUILDING WORKS
- 2. 1. General. 2. Sequence of works. 3. Backfill or excavate to the design level 4. Formwork design. 5. Placing of concrete. 6. Compaction of concrete. 7. Curing 8. Dewatering 9. Electricity 10.Equipment & Manpower Appendix A. Plan of three main building B. Formwork design & Typical of filling materials 1. General This method statement describe how we construct lean concrete for Building Works
- 3. Pleased refer to Appendix A for the plan of three main buildings. This method statement covers for the lean concrete of all Building Works. The filling material under lean concrete may be varied in difference location. Concrete class shall be approved ready-mix concrete B7.5 (Grade 15NM/m2) Excavation or Backfilling to Design Level 2. Sequence of works. Leveling & Compaction Setting Formworks Placing lean concrete Curing for Concrete 3. Backfill or Excavate to the design level Excavation works will be carried out by manpower or by backhoe depend on soil condition. Backfilling works will carry out layer by layer. Thickness of each layer is not more than 300mm.
- 4. a) Filling under piles cap of the building have piling foundation Material using for backfilling works will be existing soil on site area or other approved material if the existing soil is not enough. b) Filling under directed foundation The ground will be excavated up to soil treatment level, and then backfill up to design level following approved design & material. Design of sub layer and proposed material shall be submit separately. Please refer to Appendix B for typical of filling material. 4. Formworks Design After finish leveling and compaction works, formwork will be set out. Please refer to Appendix B for formworks design. Timber or steel will be used for formwork. 5. Placing of Concrete Approved ready-mix concrete will transported from batching plant to the site by mixer truck. From mixer truck concrete will be delivered to casting location by bucket & wheel barrow then pour out by showel or directly to the position. 6. Compaction of Concrete. Concrete after pouring to position shall compacted by immersion vibrator. 7. Curing. Curing of concrete will be carried out by spraying water periodically to the surface of the newly placed concrete. 8. Dewatering Two nos of water pump (one for spare) shall be arranged on site with enough hose 9. Electricity Electricity will supplied by stand by generator on site.
- 5. 10. Equipment & Manpower a)Equipment Equipment Unit Quantity Mixer truck Nos 02 Tamping Ramer No 01 Vibrator Nos 02 Wheel barrow Nos 05 Water Pump 2 HP No 01 Water Pump 1HP No 01 Generator 15KVA No 01 Generator 10KVA Nos 02 Bucket Nos 10 Showel Nos 05 Trowel Nos 05 b)Equipment Description Unit Quantity Supervisor No 01 Surveyor Nos 02 Foreman No 01 Electrician No 01 Worker Nos 08
- 6. APPENDIX A
- 7. FOUNDATION PLAN OF THREE MAIN BUILDING
- 8. APPENDIX B FORMWORK DESIGN & TYPICAL OF FILLING MATERIAL