Special masterbatch for admixture—calcium sulfoaluminate CAS
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Description
Calcium sulfoaluminate CAS powder (lumps) is a new type of intermediate product in the building materials industry developed under the strong support of relevant experts from the National Building Materials Academy. It can not only be used to produce special cement, but also use its special properties such as early strength, early setting, micro expansion, low alkalinity, non-shrinkage, etc., to produce various types of high-quality grouting materials, repair materials, anchoring agents, expansion agents and preparations Waterproof, leak-stopping, early strength and other special engineering materials.
Usage and precautions
During the preparation process, the product must be used in accordance with the factory quality test list or after re-testing.
Packaging and storage
Using moisture-proof packaging, each bag has a net weight of 25-50kg, sealed and stored in a dry environment, the shelf life is 3 months, and the bag is used up once after opening.
Technical performance
1, chemical composition
2. Physical properties:
specific surface area: more than 400m2/kg
Setting time: initial setting 8-20min, final setting 15-40min
Alkalinity: Cement slurry with a gray-water ratio of 1:10, the PH value of 1h is between 10.0-10.5.
Free expansion rate: 1: 0.5 lime-sand ratio, 28d free expansion rate 0.00% to 0.1%.
Scope of application:
1. Quick repair of airport runways and highways, reaching the standard of normal use within four hours 2. Repair of expansion joints of bridges and roads, and repair of steel road holes and partial repairs
3. Quick fixation of electric poles and other wooden piles. 4. Primary and secondary grouting of the base of mechanical equipment. 5. Other civil engineering needs early setting and early strength requirements can be met
6. Fast-hardening cement 7. Tile adhesive 9. Fast-hardening mortar 10. Self-leveling 11. High-speed rail grouting. Our company's products have been successfully applied to (Wuguang, Beijing-Tianjin, Beijing-Shanghai) high-speed rail
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