CSA cement

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$1660

Specification

Material : Default

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Product Introduction

CSA cement
CSA cement is not a cement,it is a pure cement clinker,also called csa binder in field of china constructin building materials. In fact, it is a hydraulic binder based on Calcium sulphoalumniate,rather than portland cement which consist of calcium silicate or alumina cement which consist of calcium aluminate. Its main efficient content is ettrigite.It can be gained after reaction with each other and the volumn is twice than the mixture of limestone,bauxite,gypsum ect. Due to 85% of ettringite is formation in early period, it has good durability and short stable time. It also can be used as concrete additive agent like high early strength agent, anti-crack waterproofing agent, anti-freeze agent, rapid hardening agent ect. Besides,it has good adaption to other cement, chemical auxiliary agent, mineral materials ect.

main constituent(%)

Type	SiO2	Al2O3	Fe2O3	CaO	MgO	TiO2	SO3
Csa binder 72.5	<=10.5	>=34	1.5-3.5	41.5-43.5	<=3.5	1.0-2.0	7.5-9.5
Csa binder 82.5	<=8.5	>=35	1.5-3.5	40.5-42.5	<=3.5	1.0-2.0	8.0-10.0
Csa binder 92.5	<=7.0	>=36	1.5-2.5	40.0-41.5	<=3.5	1.0-2.0	8.5-11.0

Finess:
specific surface area:according to standard GB/T 8074-1987
Usual range:360~430m2/kg
Specification limit:>36m2/kg

Physcial properties:
l Setting time determined at 20 using Vicat needle, according to GB/T 1346-2001
l Mechanical strength at 20 , 95% relative humidity.
Mortar according to JC933-2003

	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

These properties are applied to obtain a wide range of products:
l  Fast setting cements
l  Rapid hardening mortars
l  Tile adhesives
l  Self-leveling compounds
l  Non-shrink grouts
l  Water stopping mortars
l  etc.

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