ݺߣ

ݺߣShare a Scribd company logo

Profile Silicafume Cty Sông Thao.pdf

•
•
N
Nguyễn Ngọc Tuấn

Công ty Cổ phần Xây dựng và vận tải Sông Thao Nhà cung cấp phụ gia khoáng hoạt tính silica fume, microsilica uy tín tại Việt Nam. Các đơn vị sử dụng silica fume tại Việt Nam là: bê tông siêu tính năng UHPC, bê tông và vữa chịu lửa, bê tông & vữa bền sulfat, bê tông & vữa chống thấm...

1 of 12
Downloaded 11 times
SilicaFume Highly activity puzzolanic admixtures for concrete and mortar PHỤ GIA KHOÁNG HOẠT TÍNH CAO DÙNG CHO BÊ TÔNG VÀ VỮA - SILICAFUME 1 1、Product SilicaFume
2 SILICA FUME Production Base
SILICA FUME 3 2、Product Introduction & Application
4 Production Base SILICA FUME 1. Color: From light gray to dark gray 2. Density: Undensified bulk density 300 – 350 kg/ m3 Densified bulk density 650 – 700 kg/ m3 3. SiO₂ Content: 85% – 97% 4. Median Particle Size: About 150 nm 5. Specific Surface Area: 15.000 – 35.000 m2/ kg Physical Properties of Silica Fume
5 Product Introduction SILICA FUME
6 Product Introduction SILICA FUME Chemical Properties of Silica Fume Silica fume, also known as microsilica, (CAS number 69012- 64-2, EINECS number 273-761-1) is an amorphous (noncrystalline) polymorph of amorphous silicon dioxide. It is an ultrafine powder collected as a by-product of the silicon and ferrosilicon alloy production and consists of spherical particles with an average particle diameter of 150 nm. The main field of application is as pozzolanic material for high performance concrete.
7 Product Introduction SILICA FUME Index SiO₂ ≥ 85% Loss on Ignition ≤ 6% H2O * ≤ 2% Bulk density ≥ 18 m2/g Technical data sheet
8 Function and application mechanism of Silica fume SILICA FUME Mechanism of Silica Fume in Concrete Physical Function Chemical Reaction Silica fume can improve the water-repellent and cohesiveness of fresh concrete and improve the quality of concrete. 1、 Fill the pores between the cement particles to make the slurry denser 2、 Improve the microstructure of cement and aggregates 3、 Improve macro-physical-mechanical properties of concrete materials, including strength, impermeability, durability, elastic modulus, etc. 1、 Silica reacts with Ca(OH)2 precipitated by cement hydration to form hydrous calcium silicate (CHS) gel, blocking the capillaries, making the pores smaller and discontinuous, improving concrete compactness 2、 Silica reacts with Ca(OH)2 precipitated by cement hydration to form hydrous calcium silicate (CHS) gel, blocking the capillaries, making the pores smaller and discontinuous, improving concrete compactness 3、 Improve cement C/S ratio 4、 High pozzolanic activity
9 Application of Silica fume SILICA FUME Shotcrete Reactive Powder Concrete Slab of High-Speed Train Marine Concrete Nuclear radiation protection concrete Impact-resistant and wearresistant concrete
10 SILICA FUME 3、Production·Marketing·Research & Development
11 SILICA FUME We adhere to high standards of Silica Fume production management Warehouse Manufacture STANDARDS Vietnam: TCVN 8827:2011 America: ASTM C1240-04 Chinese: GB/T 18736-2002
12 SILICA FUME Provide All-In-One Solutions of Silica Fume for Customers " Silica Fume" is widely used in concrete, refractory materials, new building materials, oil wells, insulation, ceramics, rubber, fertilizer and other fields SONG THAO TRANSPORTATION AND CONSTRUCTION., JSC 389 Nguyen Khoai Street, Thanh Tri Ward, Hoang Mai District, Hanoi City, Vietnam. Tell: (+84) 0906262100 E-mail: sillicafumevietnam@gmail.com Website: www.songthao.com.vn

More Related Content

Profile Silicafume Cty Sông Thao.pdf

  • 1. SilicaFume Highly activity puzzolanic admixtures for concrete and mortar PHỤ GIA KHOÁNG HOẠT TÍNH CAO DÙNG CHO BÊ TÔNG VÀ VỮA - SILICAFUME 1 1、Product SilicaFume
  • 3. SILICA FUME 3 2、Product Introduction & Application
  • 4. 4 Production Base SILICA FUME 1. Color: From light gray to dark gray 2. Density: Undensified bulk density 300 – 350 kg/ m3 Densified bulk density 650 – 700 kg/ m3 3. SiO₂ Content: 85% – 97% 4. Median Particle Size: About 150 nm 5. Specific Surface Area: 15.000 – 35.000 m2/ kg Physical Properties of Silica Fume
  • 6. 6 Product Introduction SILICA FUME Chemical Properties of Silica Fume Silica fume, also known as microsilica, (CAS number 69012- 64-2, EINECS number 273-761-1) is an amorphous (noncrystalline) polymorph of amorphous silicon dioxide. It is an ultrafine powder collected as a by-product of the silicon and ferrosilicon alloy production and consists of spherical particles with an average particle diameter of 150 nm. The main field of application is as pozzolanic material for high performance concrete.
  • 7. 7 Product Introduction SILICA FUME Index SiO₂ ≥ 85% Loss on Ignition ≤ 6% H2O * ≤ 2% Bulk density ≥ 18 m2/g Technical data sheet
  • 8. 8 Function and application mechanism of Silica fume SILICA FUME Mechanism of Silica Fume in Concrete Physical Function Chemical Reaction Silica fume can improve the water-repellent and cohesiveness of fresh concrete and improve the quality of concrete. 1、 Fill the pores between the cement particles to make the slurry denser 2、 Improve the microstructure of cement and aggregates 3、 Improve macro-physical-mechanical properties of concrete materials, including strength, impermeability, durability, elastic modulus, etc. 1、 Silica reacts with Ca(OH)2 precipitated by cement hydration to form hydrous calcium silicate (CHS) gel, blocking the capillaries, making the pores smaller and discontinuous, improving concrete compactness 2、 Silica reacts with Ca(OH)2 precipitated by cement hydration to form hydrous calcium silicate (CHS) gel, blocking the capillaries, making the pores smaller and discontinuous, improving concrete compactness 3、 Improve cement C/S ratio 4、 High pozzolanic activity
  • 9. 9 Application of Silica fume SILICA FUME Shotcrete Reactive Powder Concrete Slab of High-Speed Train Marine Concrete Nuclear radiation protection concrete Impact-resistant and wearresistant concrete
  • 11. 11 SILICA FUME We adhere to high standards of Silica Fume production management Warehouse Manufacture STANDARDS Vietnam: TCVN 8827:2011 America: ASTM C1240-04 Chinese: GB/T 18736-2002
  • 12. 12 SILICA FUME Provide All-In-One Solutions of Silica Fume for Customers " Silica Fume" is widely used in concrete, refractory materials, new building materials, oil wells, insulation, ceramics, rubber, fertilizer and other fields SONG THAO TRANSPORTATION AND CONSTRUCTION., JSC 389 Nguyen Khoai Street, Thanh Tri Ward, Hoang Mai District, Hanoi City, Vietnam. Tell: (+84) 0906262100 E-mail: sillicafumevietnam@gmail.com Website: www.songthao.com.vn