Product Specifications
| Prod Model: |
Type 72.5 |
| Markets: |
North America,South America,Eastern Europe,Southeast Asia,Africa,Oceania,Mid East,Eastern Asia,Western Europe |
| Blaine: |
>450 M2/Kg |
| Compressive Strength: |
72.5 |
| Function: |
Special Cement |
| Mineral Composition: |
Calcium Sulfoaluminate Cement |
Product Description
CSA cement, also named calcium sulpho aluminate cement with grade: 525(42.5), 625(52.5), 725(62.5), 825(72.5), 925(82.5), 1025(92.5), is a hydraulic binder based on calcium sulpho aluminate, rather than calcium aluminates which are the basis of Calcium Aluminates Cement or calcium silicates which are the basis of Portland Cement. Because of the advantages of Polar Bear CSA cement, such as rapid hardening, high-strength, freeze resistance, impermeability, adjustable setting time, good fluidity, corrosion resistance, low pH value, low dry shrinkage and micro expansion, and so on, Polar Bear CSA cement can be applied to obtain a wide range of products such as fast setting cements, self-leveling or self-smoothing compounds, rapid hardening mortars, tile adhesives, non-shrink grouts, water stopping mortars, urgent repair mortars, rapid setting and special mortars, GRC, etc.
CSA Cement is used in formulated products either as a hydraulic binder by itself or with the addition of calcium sulphates or in combination with Portland cement. The setting time is quicker than that of Portland cement, and it also has a rapid strength development. CSA Cement does not release free lime during hydration thus eliminates the major cause of efflorescence.
CSA Cement 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.
Chemical Analysis
The chemical analysis of CSA Cement has been determined according to the following:
Fineness
Specific Surface Area: According to standard GB/T 8074-2008:
Usual range: 360~430 m2/kg, Specification limit: >360 m2/kg;
Usual range: 450~500 m2/kg, Specification limit: >450 m2/kg.
These properties are applied to obtain a wide range of products:
Fast setting cements
Rapid hardening mortars
Tile adhesives
Self-leveling compounds
Non-shrink grouts
Water stopping mortars
etc.
with a careful selection of the constituents (OPC, calcium sulphates, additives), it is possible to create mixes with a range of different hydraulic properties:
Adjustable setting time
Rheology adapted to the application
High early strength
High long term strength
Shrinkage compensation
Additional information:
(This information is given for reference only. )
Mineral composition
C=CaO, A=Al2O3, S=SiO2, F=Fe2O3, S =SO3
− Principal mineral phase: Calcium sulphoaluminate C4 A3 S
− Secondary phases: C2S, C4AF
Reactivity with Portland cement
The behavior of Portland cement is vary variable. In general, acceleration of set increases progressively with the addition of HCSA Binder. The amount of HCSA Binder needed to obtain a specific setting time varies considerably depending on the origin of the Portland cement and performance can be modified with the use of additives.
The strength development of CSA Cement/Portland cement and/or Calcium Sulphates depends on the nature of the Portland cement and/or Calcium Sulphates used. In general these mixes will develop mechanical strength at a very early stage (several hours). with some type of Portland cements and in formulated products containing additives which control the setting and hydration, the long term properties is similar to those of the original Portland cement, however it is necessary to check the behavior of each Portland cement used.
The characteristics of Portland cement to be considered are:
C3A content
Mineral admixture type and content
Type of Calcium Sulphate used
Packing and Storage
Polar Bear CSA Cement is normally supplied in one-tonne bag which include a moister resistant barrier. 25kg/bag and 50kg/bag are also available. However, in common with all hydraulic binders CSA Cement must be kept from moisture, and can retain its properties for up to 6 months when properly stored.
|
|
SiO2 |
Al2O3 |
Fe2O3 |
CaO |
MgO |
TiO2 |
SO3 |
|
Usual Range |
TypeI |
4.5-6.5 |
36.5-39 |
1.5-2.5 |
40.0-41.5 |
1.5-2.5 |
1.0-1.5 |
9.0-11.0 |
|
TypeII |
6.6-8.0 |
35.0-37.0 |
1.5-3.5 |
40.5-42.5 |
1.5-2.5 |
1.0-1.5 |
8.5-10.5 |
|
TypeIII |
8.5-9.5 |
34-35.5 |
1.5-3.5 |
41.5-43.5 |
1.5-2.5 |
1.0-1.5 |
8.0-9.5 |
Specification
limit |
TypeI |
< 7.0 |
> 36.0 |
< 3.0 |
39.5-42.0 |
< 2.5 |
< 1.8 |
8.5-12.0 |
|
TypeII |
≤ 8.0 |
≥ 35.0 |
≤ 4.0 |
40.0-43.0 |
< 2.5 |
< 2.0 |
8.0-11.0 |
|
TypeIII |
8.0-10.0 |
34.0-36.0 |
≤ 4.5 |
41.0-44.0 |
< 3.0 |
< 2.0 |
7.5-10.0 |
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.
