Divers
CSA Expansive Additive |
Parameters |
CSA Expansive additive I |
CSA Expansive additive II |
|
MgO % |
≦ 5.0 |
≦ 5.0 |
|
Water content % |
≦ 3.0 |
≦ 3.0 |
|
Total Alkali % |
|
≦ 0.75 |
≦ 0.75 |
Chloride ion % |
≦ 0.05 |
≦ 0.05 |
|
Specific Surface Area |
≧200m2/kg |
≧200m2/kg |
|
Fineness |
1.18mm residue |
≦ 12 |
≦ 12 |
Setting time |
Initial setting time |
≧ 0: 45 |
≧ 0: 45 |
Final setting time |
≦ 10: 00 |
≦ 10: 00 |
|
Limited Expansive Rate (%) |
7 days in water |
≧0.025 |
≧0.05 |
21 days in air |
≧-0.020 |
≧-0.010 |
|
Compressive strength |
7days |
≧25 |
≧25 |
28days |
≧45 |
≧45 |
|
Bending strength |
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.
March 1, 1997 officially carried out market research and other preparatory work,determined the scope of the company's business. Based on years of research and practice, on July 9, 2001 formally incorporated OREWORLD Trade (Tangshan) Co., Ltd., to sell non-metallic mineral products globally. We control the product quality from its origin and reduce the cost to ensure our products remain competitive in the global market.
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