Polycarboxylate Superplasticizers for Refractory Castables
Keywords
Polycarboxylate Superplasticizer, Refractory Castables, refractory aggregates, calcium aluminate cement, calcium sulphoaluminate cement, high alumina cement
Refractory castables refer to a mixture of refractory aggregates, high-alumina cement, calcium sulphoalumina cement and admixtures, which are mixed with water to form a mud material that can be constructed by pouring. C and Stabilizer are chemical dispersants specifically used for refractory castables. The characteristics of this product are stable fluidity, good workability, fast strength growth, few high-temperature sintering shrinkage cracks, and low gas content of the newly mixed castables. It can be benchmarked against similar international FS series products.
I. Polycarboxylate Superplasticziers C for Refractory Castables
The performance of C in refractory castables is significantly better than that of polycarboxylate water reducers used for ordinary Portland cement, especially in the better stability and higher strength of the newly mixed special mortar, which greatly reduces the high-temperature shrinkage cracks of the material.
Appearance |
White or light-colored powder |
Bulk density (kg/m3) |
600±50 |
pH (23ºC) (1% water) |
8.5±1.0 |
Water content (%) |
≤ 5.0 |
Cl- content (%) |
≤ 0.20 |
Recommended dosage in refractory castables: 0.15~0.25 %
II. Polycarboxylate Stabilizer for Refractory Castables
Stabilizer is an additive that maintains the flow state of refractory castables, which can prolong and maintain the workability of refractory castable systems, so that they can maintain good working conditions for a long time.
Items |
Standard |
Product color and form |
White/beige fine powder |
Bulk density (23℃) (kg/m3) |
600±100 |
pH value (23℃) (40% aqueous solution) |
5-7 |
Solid content (%) |
97.0±2.0 |
Recommended dosage in refractory castables: 0.1-0.6%
Packaging and storage
1. Packaging: 25kg composite plastic bag or cardboard barrel packaging, with plastic bag inside to prevent moisture.
2. Storage: This product should be kept away from direct sunlight and rain, and stored in a cool, dry and ventilated place.
3. Storage stability can be maintained for 12 months.
4. After opening, the product should be used in time, and the unused product should be sealed in time to prevent the product from absorbing moisture and deteriorating.
Precautions
1. This product is a soluble powder, non-toxic, but not edible.
2. No pollution to the environment was found during use, but the disposal or discharge should comply with the requirements of local environmental protection regulations.
3. When it comes into contact with the human body and eyes, it should be rinsed with clean water as soon as possible. If it causes allergic reactions in some people, medical treatment should be sought in time.
4. The packaging of this product cannot be discarded casually and should comply with the requirements of local environmental protection regulations.