XPERIMENTAL STUDY ON THE FROST DURABILITY OF SOIL-CEMENT ROCK RECYCLED CONCRETE
To investigate the frost resistance of soil-cement rock solidified concrete with high amounts of recycled aggregates under freeze-thaw cycles,quick freeze-thaw testing and SEM analysis were conducted on concrete con-taining 70%and 100%recycled aggregates at dosages of 9%,12%,and 15%.The results show that the frost resis-tance of the concrete with 70%recycled aggregate is generally higher than that with 100%.Additionally,cement-sili-ca fume treatment significantly enhances the frost resistance of recycled aggregate concrete.As the soil-cement rock dosage increases from 9%to 12%and 15%,the frost resistance of the concrete gradually improves.Under the same number of freeze-thaw cycles,the frost durability of cement concrete outperforms that of soil-cement rock concrete,while the frost resistance of the treated soil-cement rock concrete approaches that of P·O42.5 cement concrete.
万方数据
维普
