China Cement Price CSA binder/Cement Clinker
General description:
CSA binder is also called CSA cement clinker,it is a hydraulic binder based on calcium sulphoaluminate clinker. CSA binder is a pure CSA clinker without blending with suitable gypsum,slag ash,and other activated or inactivated substance ect.
CSA binder is obtained by firing the mixture which consist of bauxite,gypsum,limestone ect in rotary kiln. And its main effective constituent is ettringite. Due to the dfference of aluminum content, it can divided into three types with 72.5mpa, 82.5mpa, 92.5mpa.
Areas of application: It adapts to constuction need urgent repair,high early strength,rapid hardening ect.
1.It can produce CSA cement with blending with suitable gypsum in proper proportion.
2.It can produce a series of cement and concrete product with characteristic of fast set, rapid hardening, non-shrinkage, water-proof, high durbility ect.
3.It can be used as concrete additive to mix with ordinary cement,mineral substance, silicate cement ect. It can made the mixture capable of high early strength, waterproof,anti-crack ect.
Features: With the similar properties to high aluminum cement.
Rapid hardening
Fast set
High early strength
Anti-crack
Waterproof
Micro expansive
Anti-sulphate
Low alkali
Good fluidity
Good durbility
ect.
Performance analysis:
According to the stand of chemical analysis for cement:GB/T 176-1996
Main constituents (%)
Component | Type 1 | Type 2 | Type 3 | Type 4 | Type 5 |
SiO2 | ≤7.0 | ≤8.5 | ≤10.5 | | |
Al2O3 | ≥36 | ≥35 | ≥34 | ≥32 | ≥28 |
Fe2O3 | 1.5-2.5 | 1.5-3.5 | 1.5-3.5 | | |
CaO | 40.0-41.5 | 40.5-42.5 | 41.5-43.5 | | |
MgO | ≤ 3.5 | ≤ 3.5 | ≤ 3.5 | | |
SO3 | 8.5-11.0 | 8.0-10.5 | 7.5-9.5 | | |
TiO2 | 1.0-2.0 | 1.0-2.0 | 1.0-2.0 | | |
Fineness
Specific Surface Area: according to standard GB/T 8074-2008:
Usual range: 400(+/-20) m2/kg, Specification limit: >360 m2/kg;
Usual range: ≥ 480 m2/kg, Specification limit: >450 m2/kg.
Physical characteristic:
The characteristics of CSA BINDER have been tested in accordance with the Chinese standards: GB20472-2006.
Setting time determined at 20°C, using Vicat needle according to GB/T 1346-2001.
Item | Type 1 | Type 2 | Type 3 | Type 4 | Type 5 |
Bending Strength (Mpa) | 1d | ≥8.0 | ≥7.0 | ≥6.0 | | |
3d | ≥10.0 | ≥9.0 | ≥8.0 | | |
7d | ≥11.0 | ≥10.0 | ≥9.0 | | |
Compressive strength (Mpa) | 1d | ≥60.0 | ≥50.0 | ≥50.0 | | |
3d | ≥85.0 | ≥75.0 | ≥65.0 | | |
7d | ≥95.0 | ≥85.0 | ≥75.0 | | |
Setting time | Initial | ≥25min | ≥25min | ≥25min | | |
Final | ≤300min | ≤300min | ≤300min | | |
