人工砂与特细砂混凝土性能对比研究

Comparative analysis of Properties for manufactured sand concrete and Ultrafine Sand Concrete

对比研究人工砂与特细砂混凝土力学性能、抗冻性能和耐热性能。结果表明,在相同用水量和水灰比条件下,人工砂混凝土力学性能和抗冻性能明显优于特细砂混凝土,但特细砂混凝土耐热性能优于人工砂混凝土;低温热处理有助于提高混凝土耐热性能。

The mechanical properties, frost resistance and heat resistance of concrete with manufactured sand and Ultrafine Sand are studied comparatively. It is found that, under the conditions of same water and water-cement ratio, the mechanical properties and frost resistance of manufactured sand concrete is better than that of Uhrafine Sand Concrete. However, the heat resistance is the opposite result, at the same time, Low temperature heat treatment before calcination is benefit to impove the heat resistance of concrete.