A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
The invention discloses a preparation method of viscosity-modified concrete. The preparation process is characterized in that the viscosity-modified concrete comprises, in parts by weight, cement, flyash, sand, broken stone, a water reducing agent, a viscosity modifying agent and water. A viscosity modifying material is doped, and the particle size of the viscosity modifying material is smaller than the particle size of the cement, such that the average particle size of the cementing material can be reduced by replacing the cement; and gaps among cement particles can be filled, so that the compactness of the concrete is increased, the viscosity and the pressure bleeding rate of cement paste in the concrete are reduced, the fluidity of a mixture is improved, the pumping pressure is reducedand the pumping loss is reduced when the super high-rise concrete is pumped.
本发明公开一种改性粘度的混凝土制备工艺，其特征在于，按照重量份数计，包括份水泥、份粉煤灰、份砂、份碎石、份减水剂、份改性粘度剂、份水，通过掺入了粘度改性材料，其颗粒粒径比水泥要小，取代水泥可以使胶凝材料平均粒径减小，而且可以填充水泥颗粒之间的空隙，使混凝土的密实度增加，降低了混凝土的中水泥净浆的粘度和压力泌水率，从而提高了拌合物流动性，使超高层混凝土泵送时，降低泵送压力，减少泵送损失。
The invention discloses a preparation method of viscosity-modified concrete. The preparation process is characterized in that the viscosity-modified concrete comprises, in parts by weight, cement, flyash, sand, broken stone, a water reducing agent, a viscosity modifying agent and water. A viscosity modifying material is doped, and the particle size of the viscosity modifying material is smaller than the particle size of the cement, such that the average particle size of the cementing material can be reduced by replacing the cement; and gaps among cement particles can be filled, so that the compactness of the concrete is increased, the viscosity and the pressure bleeding rate of cement paste in the concrete are reduced, the fluidity of a mixture is improved, the pumping pressure is reducedand the pumping loss is reduced when the super high-rise concrete is pumped.
本发明公开一种改性粘度的混凝土制备工艺，其特征在于，按照重量份数计，包括份水泥、份粉煤灰、份砂、份碎石、份减水剂、份改性粘度剂、份水，通过掺入了粘度改性材料，其颗粒粒径比水泥要小，取代水泥可以使胶凝材料平均粒径减小，而且可以填充水泥颗粒之间的空隙，使混凝土的密实度增加，降低了混凝土的中水泥净浆的粘度和压力泌水率，从而提高了拌合物流动性，使超高层混凝土泵送时，降低泵送压力，减少泵送损失。
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