CSA Expansive Additive

CSA expansive additive description:

The CSA expansive additive is obtained by blending natural anhydrite with clinker powder which consists of calcium sulfoaluminate and CaO. This CSA expansive additive is always mixed with ordinary cement. When mixed in the proper proportion with ordinary cement and hydrated, cement mortar or concrete expands during the early stages of hydration. It is developed to reduce and compensate the hydraulic shrinkage of cement based construction products. Its performance is similar to Denka CSA #20, which is now widely used in the formulation of different mortars in Europe countries.

We offer two types of these CSA expansive additives, the main specifications are according to JC476-2001

CSA expansive additive technical data:

Parameters		CSAExpansiveadditiveI	CSAExpansiveadditiveII
MgO%		≦5.0	≦5.0
Watercontent%		≦3.0	≦3.0
TotalAlkali%		≦0.75	≦0.75
Chlorideion%		≦0.05	≦0.05
SpecificSurfaceArea		≧200m2/kg	≧200m2/kg
Fineness		≦12	≦12
Settingtime	Initialsettingtime	≧0:45	≧0:45
	Finalsettingtime	≦10:00	≦10:00
LimitedExpansiveRate(%)	7daysinwater	≧0.025	≧0.05
	21daysinair	≧-0.020	≧-0.010
Compressivestrength（MPa）	7days	≧25	≧25
	28days	≧45	≧45
Bendingstrength（Mpa）	7days	≧4.5	≧4.5
	28days	≧6.5	≧6.5

CSA expansive additive performance:

(1) As making shrinkage compensated concrete, if the ratio of reinforcement is 0.2%-1.0%, the limited expansive rate will be in the range of 0.02-0.04%, and a prestress of 0.2-0.7Mpa exists in the concrete.

(2) Comparing with the concrete without Expansive Additive, in the condition of defined mixing amount, the free strength of the concrete with Expansive Additive is roughly equal to that of concrete without Expansive Additive. The limited strength is 10~15% higher than free strength.

(3) The impermeability grade of mortar and concrete can reach over S30. The elastic ratio closes to that of common concrete.

(4) Anti freezing: D150.

(5) Sulphate resistance of concrete is increased. No pollution to water.

CSA expansive additive application:

(1) For structural self-waterproofing construction. Effectively preventing cracking or leakage of concrete.

(2) To extend the space length of post casting zone of cast-in-place overlength structure.

(3) To control the crack producing result of temperature difference in large sized structural concrete.

(4) For rigid roofing.

(5) Making non-shrinkage cements.

CSA expansive additive packing:

By 50kgs bags or jumbo bags.

CSA expansive additive Storage:

Store in dry place, guard against damp. Warranty period: 1 year.

OREWORLDis a professional fire brick supplier, we provide csa cement, csa binder and etc. Want to know what is csa cement or more? Please contact us.

Other supplier products

	High Alumina Cement	What is High Alumina Cement High Alumina Cement (HAC, sometimes known as calcium aluminate cement (CAC) or aluminous cement) is composed of calcium...
	Calcium Aluminate Cement	Description of Calcium Aluminate Cement Calcium aluminatecement, alumina cements or high alumina cements are obtained by the reaction at high temp...
	CSA Cement	CSA cement introduction CSA cement is a used in many applications where early high strength and fast setting development are necessary. CSA cement...
	Amorphous Calcium Aluminate	Amorphous Calcium Aluminate Details: The mineral of amorphous calcium aluminate (non-crystalline calcium aluminate) is C12A7. The alumina content ...
	CSA Expansive Additive	CSA expansive additive description: The CSA expansive additive is obtained by blending natural anhydrite with clinker powder which consists of c...

供应产品

Same products

	波斯尼亚和黑塞哥维那实验室液氮罐 KGSQ	卖方: 河南天之道生物科技有限公司	在实验室，常用的液氮罐多是大容量，大口径，且有重量。若想转移，徒手搬运，难度系数高，还存在一定的危险性。而且还不能保证在转移的过程中会不会发生磕碰或意外。如果在转移中出现问题，那就得不偿失了。 ...
	坦桑尼亚精子细胞储存 KGSQ ln2 容器	卖方: Henan Tianzhidao Biological Technology Co., Ltd.	在实验室，常用的液氮罐多是大容量，大口径，且有重量。若想转移，徒手搬运，难度系数高，还存在一定的危险性。而且还不能保证在转移的过程中会不会发生磕碰或意外。如果在转移中出现问题，那就得不偿失了。 ...
	Ebike Battery	卖方: Shenzhen Worldpower Energy Storage Technology Co.,Ltd	Custom Ebike Lithium Battery Manufacturer Elevate your electric biking experience with Worldpowe...
	Battery Energy Storage Systems	卖方: Shenzhen Worldpower Energy Storage Technology Co.,Ltd	Battery Energy Storage Systems (BESS) are cutting-edge technologies that store electrical energy ...
	ETH Ethereum Jasminer X4 BRICK ASIC Miner	卖方: Shenzhen Dovina Electronic Co.,Ltd	Jasminer X4 Brick Review Jasminer x4 brick for salefrom Jasminer mining EtHash algorithm with a ...