formula

M5 mortar formula: 425 cement 350 kg, Heavy Calcium Carbonate 50 kg, medium sand (quartz brick) 600 kg, Cellulose ether I kg, Redispersible Polymer powder 2 kg Is this formula okay? Is it practicable to use it for M5 testing?

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...

M5 mortar formula: 425 cement 350 kg, Heavy Calcium Carbonate 50 kg, medium sand (quartz brick) 600 kg, Cellulose ether I kg, Redispersible Polymer powder 2 kg Is this formula okay? Is it practicable to use it for M5 testing?

425cement 250 high-alumina cement 100 Quartz sand 70-140 mesh 450 Heavy Calcium Carbonate 130 Anhydrite 50 Redispersible Polymer powder 10 Cellulose ether 0.5 polycarboxylate superplasticizer 1 antifoaming agent 1 Tartaric acid 0.7

White sand 600 Cement 350 Heavy Calcium Carbonate 50 Thixotropic lubricant 2 Redispersible Polymer powder 10 Calcium Formate 5 Pp fiber 3 Hydroxyethyl Methyl Cellulose 5

The formula mainly includes pure Aluminium sulfate cement, washed and dried river sand, water reducing agent, expanding agent, defoaming agent, lithium sulfate, and retarder. I just returned from the project, and there are cracks; the test temperature is 18 ℃. There is no problem with strength...