Basic Info.
Mineral Composition
Sulphate Aluminium Cement
Hardening Feature
Extra Rapid Hardening
Function
Special Cement, White Anti-Crack Fast Set Cement
Heat of Hydration
Low-Heat
Product Name
White Anti-Crack Double Fast Set High Belitecement
Main Composition
C4a3s, C2s, Caso4
Characteristic
White, Anti-Crack, High Early Strength, Fast Set
Application
Self-Leveling Mortar, Concrete Leveling Mortar etc
Main Usage
Replace Rapid Hardening Cement in Mortar Productio
4h Compressive Strength
12.5MPa
7D Compressive Strength
32.5MPa
Initial Set /Final Set
15min/ 45min
Trademark
South Africa, America,The UK, UAE,Korea,Japan,ect
Transport Package
1 Metric Ton or 25kg Per Bag
Specification
ISO9001 and ISO 14001
Origin
Hebei Province in China
Product Description
White anti-crack resistant double fast high Belite CSA Cement 32.5
It is a white hydraulic binder with crack resistance, fast setting and rapid hardening properties, made from active (or inactive) mixed materials such as fast setting rapid hardening high belite sulphur aluminate cement clinker with low content of ferric oxide, moderate amount of gypsum (or industrial by-product gypsum), slag and other active (or inactive) hybrid materials with fine grinding, and its code is BS - WCF.
Technical Requirements
Items | Indexes |
| White Crack Resistance Double-Fast Cement |
Specific Surface Area / (m2/kg) ≥ | 480 |
Setting Time A/Min | Initial setting≥ | 15 |
Final setting≤ | 45 |
28-Days Free Swell Ratio /% | In water≤ | 0.08 |
In dry air≥ | -0.05 |
Whiteness Value≥ | - | 70 |
a When user has special requirements, the seller and the buyer make a decision by negotiation together. |
| | | |
Strength Index
Varieties | Grade Strength | Compressive Strength | Bending Strength |
4h | 7D | 28d | 4h | 7D | 28d |
White Crack Resistance Double-Fast Cement | 32.5 | 12.5 | 32.5 | 40.0 | 4.0 | 5.0 | 6.0 |
Free expansion ration % in water/air |
28d | 90d | |
Standard Value | Actual | Actual | Actual |
≤0.08 ≥-0.05 | 0.050/-0.038 | 0.061/-0.045 | 0.076/-0.048 |
Disadvantages of traditional white cement:
Now, white cement in current construction market is mainly Portland cement. Although the white degree of such cement is higher, it has a lot of problems such as low early strength, low late strength, easy to crack, easy to damage and easy to re-alkali.
Features of White anti-crack resistant double fast high belite CSA cement 32.5
1.Small size change rate
With proper proportion of gypsum, the cement has micro expansion and low dry shrinkage performance, and cement size change ratio is very small. Its free expansion rate (dry shrinkage of 2:1 cement mortar in dry air) is only 1/10-1/8 to the portland cement, and its volume stability is good; the change rate of volume size for one-year age of concrete is very small and the volume of long-time concrete is stable.
2. Excellent thermal stability and corrosion resistance
Although the hydration heat is focused, the center temperature of large volume concrete only arrived at 72ºC even in summer.
3. Micro expansion, high early strength, good impermeability and frost resistance
4h compressive strengths is above10 MPa, and it is easy to prepare high early strength concrete even in low temperature.
As it has micro expansion property, concrete compounded of which is very dense, and the late strength increases very high, which make the frost resistance performance of the concrete compounded of which be very excellent.
Main application:
GRC component
Decorative mortar
Inner and exterior wall putty
Cement based self-leveling mortar
Artificial man-made stone and artificial flooring
Indoor and outdoor self-leveling floor
Crack resistance plastering dry-mixed mortar
The exterior insulation mortar and tile adhesive
Decorative concrete
Concrete precast component
Structure reinforcement
Extra-high early strength grouting material
Bolting and Shotcrete Engineering
Waterproofing and leak stopping material
3. Research and development purposes and meanings of high belite sulphur aluminate cement
3.1 Market status of sulphur aluminate cement
Sulphur aluminate cement is a kind of special cement independently invented by our country. Its main minerals are anhydrous calcium sulphoaluminate (C4A3S) and dicalcium silicate (C2S), with the former accounting for 60-70% and the latter accounting for about 20-30%. Because of its early strength, high strength, micro expansion, frost resistance, impermeability, corrosion resistance and other excellent properties, it is uniquely applied to the special fields such as special building materials, concrete products. But to produce sulphur aluminate cement, high quality natural gypsum and bauxite need to be used, and as the bauxite resources become increasingly scarce, the cost and the price of this kind of cement is very high. As a result, the application in the construction project gradually decreases, which conflicts to the national strategy of developing the special cement, so to research and develop and produce high belite sulphur aluminate cement with low cost and high performance has become an urgent task at present.
3.2 Properties and application status of white Portland cement
The white cement in current construction market is mainly Portland cement. Although the white degree of such cement produced by big factory is higher, it has a lot of problems such as low early strength, low late strength, easy to crack, easy to damage and easy to re-alkali. In the production of GRC decorative products, especially of the large GRC decorative wall panel, due to different engineering component shapes, the template demand is large and the manufacturing cost is high; increase the strength of white cement, reduce the structure size and weight of GRC components, raise yield; improve crack resistance and inhibit re-alkali function, are of great significance to promoting the development of large GRC decorative wall panel.
3.3 The market urgently needs new concrete with good anti-cracking performance
Arts agglomerated stone, personalized art floor, cement-based self-leveling mortar, thin layer concrete repairing material, concrete leveling mortar and other materials all have a broad market, however, the development is greatly affected by the cracking problem, and the root of which comes from high shrink rate of the adopted concrete. Therefore, the market urgently needs a kind of micro-expanding low-shrinkage cement.
Address:
Tong Zhou, Beijing, China
Business Type:
Manufacturer/Factory, Trading Company
Business Range:
Construction & Decoration
Management System Certification:
ISO 9001, ISO 14001
Company Introduction:
Tangshan polar bear building materials co, Ltd founded in 1989, has fix assets of 120 million RMB, and covers an area of 180 thousand square meters. It is engaged in manufacturing, selling and researches the series of sulphoaluminate cement, dry mix mortar, concrete crack resistant additive agent, concrete admixture ect.
Tangshan polar bear building materials co, Ltd produces sulphoaluminate cement for 60, 000 tons, dry mix mortar and concrete admixture for 200, 000 tons for year. It′s one of the largest scale enterprises that produce this kind of cement in China.
Tangshan polar bear building materials co, Ltd has its CSA cement clinker, CSA expansive agent ect sulphoaluminate cement for exporting. With excellect technical support and favorable price, we have set up a good image in both domestic and international markets. And our products have been export to India, America, Korea, Japan, The UK, South Africa, The UEA France, and Taiwan, Hongkong ect.