HCSA cement is a hydrautic binder based on calcium sulphoaluminate.Its main raw mineral consitituent is C4A3_calcium sulphoaluminate and dicalcium silicate.Besides,it has more excellent properties than those calcium aluminate cement and calcium silicate portland cement.
Porperties:
Incorporation with csa cement into a variety of mix design,csa cement produce exhibit a rang of properties:
Rapid set
Adjustable setting time
High early strength
Increased strength in time
Low shrinkage
Micro expansion
Low alkanity
Sulphate resistance
Low CO2 emission
Rheology adapt to application
HCSA Cement is used in formulated products either as a hydraulic binder by itself or with the addition of calcium sulphates,or in combination with portland cement.The setting time is quicker than that of portland cement,and it also has a rapid strength development.HCSA Cement does release free lime during hydration thus eliminates the major cause of efflorescence.
HCSA cement is manufactured under a strict quality assurance systems GB/T 19001-2000 and GB/T 24001-1996 which accommodates the technical requirements of building chemistry formulators.
Main Chemical Analysis(%)

	SiO2	Al2O3	Fe2O3	CaO	MgO	TiO2	SO3
Usual range	4.5-6.5	36-39	1.0-2.0	39-41	1.5-2.0	1.0-1.5	9-11
Specification limit	<7.0	>35	<2.5	39-42	<2.5	<1.8	9-12

 
Specific surface area:>360m2/kg
Technical data:

				Initial Set			Final Set
Specification limit				>25 minutes			<180 minutes
Item				Compressive strength(mpa)			Flexural strength(mpa)
	Type	1d	3d		7d	1d	3d	7d
	Csa binder 72.5	>=50.0	>=65.0		>=75.0	>=6.0	>=8.0	>=9.0
	Csa binder 82.5	>=50.0	>=75.0		>=85.0	>=7.0	>=9.0	>=10.0
	Csa binder 92.5	>=60.0	>=85.0		>=95.0	>=8.0	>=10.0	>=11.0

 
Application:
The properties made it have a good suitable to application as below:
Construction complied in winter;
Emergency repair engineering;
Mortar and Concrete repair construction;
Marine and water project;
Bridge and highway road facing repair;
Bolting and shotcrete support engineering;
Industry and civil building construction
Ect.