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

	Magnesia Bricks	Magnesia bricks description Magnesia bricks are a kind of alkalescency refractory bricks that made from the sintered magnesium with its content of ...
	Mica Powder	Main introduction of Mica Powder Mica Powders are non-reactive and non-tarnishing metallic pigments. They are ideal for adding shimmer for gilding ...
	CSA Cement	CSA (calcium sulfo-aluminateCement) cement is a special cement used in many applications where early high strength and fast setting development are...
	Magnesia bricks	Light Calcium Carbonate, also named precipitated calcium carbonate, is a kind of active calcium carbonate. The manufactured process of light calciu...
	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...

供应产品

Same products

	Greentech GR220 Electric Star Feeder | Rotary Airlock Valve Seals for Pneumatic Conveying Systems 6 Months Warranty 310kg	卖方: Greentech International (Zhangqiu) Co., Ltd	Customized Support: Tailored solutions for industrial machinery needs. High-Quality Electric P...
	Bottle Cap Mold	卖方: Taizhou Qihong Mold Co., Ltd.	Bottle Cap Mold is designed for precise and consistent plastic cap production, supporting differe...
	High quality beeswax used in craft production	卖方: Syntop chemical Co.,Ltd.	Beeswax has a wide range of uses in handicrafts, appearing in everything from traditional candles...
	FT wax used for EVA-based hot melt adhesive	卖方: Syntop chemical Co.,Ltd.	Fischer-Tropsch wax is a commonly used performance modifier in hot melt adhesives, especially for...
	high melting point FT wax improve the heat resistance of adhesives	卖方: Syntop chemical Co.,Ltd.	FischerTropsch wax is an alkane polymer produced from synthesis gas or natural gas via the Fische...