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It means that the air in the concrete is wetted by water, and the air discharges into the mortar. However, the mortar is too sticky or contains too much powder, so the gas cannot release normally and can only bulge inside. There are two adjustment ideas: one is to apply an adhesion agent on the...

I have adjust my formula a bit, please take a look and give me some feedback Ordinary Portland cement 260, aluminum sulfate 90, anhydrite 50, sand 70-140 450, Heavy calcium carbonate 130, redispersible polymer powder 15, polycarboxylate superplasticizer 2, p803 0.5, cellulose ether 0.8, sodium...

Do not add water-reducing agents. The amount of calcium formate doesn't have much effect. It is best to differentiate between summer and winter. Calcium carbonate powder is recommended to add 25 as an additive mixture.

Ordinary Portland cement 260, aluminum sulfate 100, anhydrite 55, sand 70-140 430, Heavy calcium carbonate 130, redispersible polymer powder 12, polycarboxylate superplasticizer 10, p803 1.5, hpmc400 0.1, sodium phosphate anhydrous 1.5, tartaric acid 0.4, sodium glucosamine 0.4, Water 280...