Novel cement-based composite material with low hydration heat and preparation method thereof
A composite material, low hydration heat technology, used in the field of building materials, can solve problems such as temperature cracks, and achieve the effects of inhibiting cracks, prolonging plasticity, and prolonging heat release time
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[0022] A kind of preparation method of the cement-based composite material of novel low heat of hydration of the present invention, comprises the steps:
[0023] (1) Take cement, water, siliceous fine sand, biomass combination acid, siliceous mineral admixture, polycarboxylate water reducer, silica-alumina mineral admixture, organic retarder respectively by weight, and Place it for later use; (2) add the cement, siliceous fine sand, siliceous mineral admixture, biomass combination acid and silicon-aluminum mineral admixture in the step (1) into the mixer and dry stir for a period of time (3) Add water and polycarboxylate superplasticizer in turn, and slowly add organic retarder under stirring state to obtain the cement-based composite material mixture; (4) Pour the cement-based composite material mixture into the mold After being filled, it is smoothed and covered with plastic wrap, and the formwork is removed after curing to obtain a new type of cement-based composite materia...
Embodiment 1
[0033] Take by weighing 180g of cement, 80g of water, 540g of siliceous fine sand, 0.18g of biomass combined acid, 30g of siliceous mineral additive, 1.5g of polycarboxylate superplasticizer, 22g of silica-alumina mineral admixture, sodium gluconate ( Organic retarder) 0.2g.
Embodiment 2
[0035] Take by weighing cement 180g, water 80g, siliceous fine sand 540g, biomass combination acid 0.36g, siliceous mineral admixture 30g, polycarboxylate superplasticizer 1.5g, silica-alumina mineral admixture 22g, sodium gluconate ( Organic retarder) 0.2g.
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