CSA Expansion

Properties:
1. Similar to Denka CSA Expansion
2. Low alkalinity
3. Short stable stage of expansion
4. Low dosage and high expansion
5. Hydration heat control
6. Low alkalinity
7.Mineral Composition: CaO, CaSO4, 3CaO-3Al2O3-CaSO4.
Application
1. Structual self waterproofing construction
2. Anti cracking and moisture proof of reinforced concrete structures
3. Late poured bands
4. Non shrinkage grout
5. Chemical pre-stressed concrete products

Main constituents (%)

	SiO2	Al2O3	Fe2O3	CaO	MgO	SO3	f- CaO	R2O	cl-	Ig-loss
Usual range	4~7	8~12	<1.5	50~55	2~4	22~25	10~15	<0.3	<0.05	<5

Mineral Composition: CaO, CaSO4, 3CaO.3Al2O3 .CaSO4

Specific Surface Area: 200~400m2/kg

Specific Gravity:2.8~3.0

The restrained expansion rate tested under standard condition:

Dosage of High-efficiency CSA ExpansiveAgent to Ordinary Portland cement %	Restrained-expansion rate (%)
7	Curing in water for 7 days	Curing in water for 28 days	Curing in air, constant humidity for 21 days
	0.03	0.1	>-0.02