自然养护粉煤灰混凝土性能的试验研究

鉴于粉煤灰掺量是影响粉煤灰混凝土强度及碳化深度的重要因素,为此,对不同掺量的粉煤灰混凝土在自然气候中的强度发展和碳化深度进行了试验研究,结果表明,粉煤灰掺量过大或过小,混凝土的强度和耐久性能均不稳定,当粉煤灰掺量为20%~60%时,混凝土的强度发展与碳化速度均较稳定。

Experimental study of fly ash concrete properties of the natural curing

Dosage of fly ash is the important factors influencing the strength of fly ash concrete and the carbonation depth. To this end,the differ-ent dosage of fly ash concrete strength development in the natural climate and carbonation depth were studied. The results show that the fly ash content is too big or too small,the strength and durability of the concrete are unstable,when 20%~60% dosage of fly ash,the strength develop-ment of concrete and carbonation speed are relatively stable.