CSA cement

Properties:

1.       Al2O3 28.0--36.0% for different model

2.       Rapid Set

3.       Adjustable Setting time

4.       High Early Strength

5.       Increased strength in time

6.       Minimal Shrinkage

7.       Shrinkage compensation

8.       Expansion

9.       Rheology Adapted to the Application

10.   Low CO2 Emissions

11.   Without K and Na ion, so without alkaline damage

12.   PH: around 11

13.   Coefficient of sulfur resistance:1.3--1.4.

Application

1.       Fast setting tile adhesives

2.       Fast setting tile grouts

3.       Shot-crete/Gun-nite

4.       External renders

5.       Self smoothing mortars

6.       Self leveling mortars

7.       Anchor bolt grouts

8.       Non shrinking grouts

CSA Cement, also named Calcium Sulpho Aluminate Cement with grade: 42.5,52.5,62.5,72.5,82.5,92.5, is a hydraulic binder based on calcium sulpho aluminate, rather than calcium aluminates which are the basis of Calcium Aluminates Cement or calcium silicates which are the basis of Portland Cement. It can be used on its own ( with a Lithium accelerator), or with an Anhydrite, Portland cement mix, Metakaolin or a combination of all.

CSA Cement has the benefit of being readily adaptable to suit many different applications where both rapid set and high early strength gain are required. It yields controlled set, enhanced early strengths, shrinkage compensation or expansion and sulphate resistance. Uses include any cement-based product in need of these properties. CSA Cement products exhibit a range of properties to suit a wide spectrum of cement-based applications, like fast setting cements, self-leveling or self-smoothing compounds, self compacting concrete, rapid hardening mortars, tile adhesives, non-shrink grouts, water stopping mortars, repair mortars, high early strength concrete, GRC, etc.

Within CSA ( Calcium Sulpho Aluminate) Cement Ettringite formation is typical. Ettringite is an expansive crystalline substance formed when sulphate reacts with tri-calcium aluminate(C3A) and calcium hydroxide ( Ca(OH)2). It occupies twice the volume of the original compounds so an expansion occurs. In the CSA Cement, 85% of ettringite is developed at a very early stage in the process, before the aluminates and silicates start to hydrate. The risk of late ettringite formation is very limited and the ettringite which is formed is very stable over time. This is the fundamental difference between CSA and CAC( Calcium Aluminate Cement) Cement.

Be it a mortar or a concrete, making a composite cement which exhibits rapid setting, high early strength development, with little or no loss of late strength, no risk of conversion or late formation of ettringite. Depending on the level of addition of calcium sulphate, either shrinkage compensation or positive expansion can also be controlled.

Potential advantages of the CSA Cements are low CO2 emissions, improved sulphate resistance, low permeability, enhance durability and a good workability at low temperatures.

CSA Cement is manufactured under a strict quality assurance systems GB/T 19001-2000 ( i.e. ISO9001:2000) and GB/T 24001-1996( i.e. ISO 14001:1996)which accommodates the technical requirements of building chemistry formulators..