Product Specifications
| Prod Model: |
#20 |
| Markets: |
North America,South America,Eastern Europe,Southeast Asia,Africa,Oceania,Mid East,Eastern Asia,Western Europe |
| Function: |
Special Cement |
| Mineral Composition: |
Sulphate Aluminium Cement |
Product Description
High-efficiency CSA Expansive Agent is obtained by blending suitable natural anhydrite with a specially manufactured clinker which consists essentially of calcium sulphoaluminate and CaO. High-efficiency CSA expansive agent is always mixed with ordinary cement. When mixed in the proper proportions with ordinary cement and hydrated, cement mortar or concrete expands during the early stages of hydration. This expansion, when restrained, makes it possible to minimize drying shrinkage. Moreover, when the ratio of High-efficiency CSA Expansive Agent to ordinary cement is increased its high expansion qualities make it ideal for use in prestressed concrete.
High-efficiency CSA Expansive Agent is being used in all sections of the construction fields and by a wide variety of concrete products manufacturers.
High-efficiency CSA Expansive Agent is manufactured under a strict quality assurance systems GB/T 19001-2000 (i. e. ISO9001: 2000) and GB/T 24001-1996 (i. e. ISO 14001: 1996)) which accommodates the technical requirements of building chemistry formulators.
The properties of High-efficiency CSA Expansive Agent conform to the standards of the manufacturer and to the Chinese relevant standards.
Characteristics of High-efficiency CSA Expansive Agent
1. Low alkalinity. High-efficiency CSA Expansive Agent has a very low alkali content (R2O<0.3%) which is beneficial to avoid AAR in concrete.
2. Short stable stage of expansion. The stable stage of expansion is not more than 14 days, thus the ultimate strength of concrete is not affected.
3. Low dosage and high expansion capacity. The normal dosage of High-efficiency CSA Expansive Agent is 6~8% by the weight of ordinary cement, which is lower compared with other expansive additives such as UEA and CEA (their dosages are about 10~12% by the weight of cement) in the market.
Features by using High-efficiency CSA Expansive Agent
1. Prevents cracking due to drying shrinkage and hydration heats.
2. Increases the water tightness of concrete and thus is useful for waterproofing buildings.
3. Enables the manufacture of high strength concrete products through chemical prestressing.
|
CSA EXPANSIVE AGENT |
|
Item |
Date |
Adding Ratio |
W/C Ratio |
Water ratio % |
Setting(min) |
Test cone sinking depth mm |
Blainem 2 /kg |
Material retained after 1.18mm mesh % |
Restrained Expansion Rate% |
Strength Mpa |
|
Initial |
Final |
In Water |
In Air |
Flexural |
Compressive |
|
1d |
3d |
7d |
10d |
14d |
28d |
21d |
7d |
28d |
7d |
28d |
|
HIGH EFFICIENCY CSA EXPANSIVE AGENT TYPE 3 |
|
7% |
0.50 |
27.40 |
183 |
209 |
29.00 |
335 |
0.01 |
|
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0.075 |
|
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0.096 |
0.039 |
3.2 |
5.5 |
21.8 |
45.9 |
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Chemical Composition |
Loss |
SiO2 |
Al2O3 |
Fe2O3 |
CaO |
MgO |
SO3 |
TiO2 |
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3.20 |
3.65 |
10.20 |
0.32 |
55.06 |
3.19 |
23.15 |
0.58 |
99.35 |
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Tangshan Polar Bear Building Materials Co., Ltd., founded in 1989, has fix assets of 95million RMB and covers an area of 130 thousand square meters. It is engaged in manufacturing, selling and researches the series of concretes admixture, dry mortar and sulphoaluminate cement.
Tangshan Polar Bear has the production capacity of the dry mortar and concrete admixture 200, 000 tons, sulphoaluminate cements 400, 000 tons per year. It's one of the largest-scale enterprises that produce this kind of products in China.
The enterprise achieved the permit to ISO9001 and ISO14001. It enjoy the honorary titles issued by the government, like "the high-tech enterprise of Hebei province", "the top-ten excellent enterprises of Hebei province in invention works", "The top-ten private enterprises of Hebei province in technical development", etc.
"Polar Bear" is the famous brand in Chinese construction market, The products enjoy the honorary titles issued by the government, like "famous brand product of Hebei province". A strict and pragmatic style of work and the spirit of blaze new trails make the company set up a good image in both domestic and international market.
The company has its own research organization-cement and concrete research lab, which fully equipped with the up-to-date facilities. The company signed co-research and development contracts with America National Starch Chemical Co., Ltd, Technical Design & Research Institute of Nuclear Power of Tsinghua University, and China Building Materials Academy. Also, the company has set up long-term technology exchange relationship and cooperation with several domestic and international research academies and companies, such as the Research Institute of Railway Ministry and Fosroc of the Unite kingdom. The company's products have been exporting to nearly twenty countries such as France, South Africa, Australia, UK, Korea, United Arab Emirates, and etc.
