Cement-based self-leveling mortar
A self-leveling mortar and cement-based technology, applied in the field of self-leveling mortar, can solve the problems of increased segregation and settlement, accelerated surface, and easy cracking of the surface, and achieves the effect of significantly reducing the cost and reducing the cost of raw materials.
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[0039] Example 1
[0040] In terms of mass fraction, the component ratios are as follows: 160 parts of PII52.5 Portland cement, 55 parts of CA50 aluminate cement, 35 parts of anhydrite, 15 parts of bentonite, 125 parts of heavy calcium powder, 20-40 mesh washed river 200 parts of sand, 200 parts of 40-70 mesh washed river sand, 200 parts of 70-140 mesh washed river sand, 5 parts of redispersible polymer powder, 0.5 part of water reducing agent, 0.6 part of retarder, 0.8 part of cellulose ether, 0.8 part of defoamer, 0.3 part of lithium carbonate, 0.3 part of polypropylene fiber, and the mass ratio of water to material was 0.22 to prepare cement-based self-leveling mortar.
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[0041] Example 2
[0042] In terms of mass fraction, the proportion of raw materials is as follows: 170 parts of PO42.5 Portland cement, 45 parts of CA50 aluminate cement, 35 parts of anhydrite, 20 parts of bentonite, 70 parts of heavy calcium powder, 20-40 mesh washing 150 parts of river sand, 250 parts of 40-70 mesh washed river sand, 250 parts of 70-140 mesh washed river sand, 5 parts of redispersible polymer powder, 0.6 part of water reducing agent, 0.5 part of retarder, 1 part of cellulose ether , 1.2 parts of defoaming agent, 0.5 part of lithium carbonate, 0.4 part of polypropylene fiber, and a water-material mass ratio of 0.21 to prepare cement-based self-leveling mortar.
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[0043] Example 3
[0044] In terms of mass fraction, the proportion of raw materials is as follows: 165 parts of PO42.5 Portland cement, 45 parts of 52.5 sulfoaluminate cement, 40 parts of anhydrite, 15 parts of bentonite, 120 parts of heavy calcium powder, 20-40 mesh 150 parts of washed river sand, 250 parts of 40-70 mesh washed river sand, 200 parts of 70-140 mesh washed river sand, 10 parts of redispersible polymer powder, 0.4 part of water reducing agent, 0.5 part of retarder, 0.7 part of cellulose ether part, 1 part of defoamer, 0.5 part of lithium carbonate, 0.3 part of polypropylene fiber, and the mass ratio of water to material was 0.21 to prepare cement-based self-leveling mortar.
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