- 王培新1，黃洪財1，桂苗苗1，全 明2，劉 佳2，葉家偉2
引用本文摘 要：采用水泥裹石法成型透水混凝土，研究了不同水泥用量、粉煤灰、礦粉不同取代水泥量、特細砂和機制中砂摻量對透水混凝土強度和透水系數的影響。結果表明，隨著水泥用量的增大，透水混凝土的抗壓強度和抗折強度均增大，而透水系數隨著水泥用量的增加而下降。粉煤灰和礦粉取代水泥來配制透水混凝土，透水混凝土的7d和28d抗壓強度均有所下降，且早期強度下降明顯。透水混凝土中摻入特細砂和機制中砂都可以使透水混凝土內部更加密實，提高其抗壓強度；當使用特細砂和機砂雙摻時，增強效果大于單摻。 Abstract: Using cement binding up stone manufacturing pervious concrete, the effects of different amount of cement, fly ash, slag with different cement replacement volume, superfine sand and manufactured medium sand content on the strength and permeability coefficient of pervious concrete are studied. Under the experimental conditions the results show that with the increase of amount of cement, the compressive strength and flexural strength of pervious concrete are increased, while the permeability coefficient increases with amount of cement decreased. Manufacturing pervious concrete with fly ash and slag to replace cement, the 7d and 28d compressive strength of pervious concrete are decreased, and the early strength decreased significantly. The superfine sand and manufactured medium sand mixing mechanism of pervious concrete can be made of pervious concrete internal denser, increase the compressive strength. When using superfine sand and manufactured sand mixed, the reinforcing effect is better than using the single doped.