包头地区粉煤灰对混凝土性能的影响

Effect on the concrete properties by Baotou's fly-ash

简明介绍了包头地区粉煤灰的成分和特点 实验表明,粉煤灰掺入后对混凝土的和易性、骨料、水灰比和最终抗压强度都有所改善 粉煤灰对提高混凝土的塌落度有明显作用,可以减少水泥和细骨料的比例等 水泥用量不变时,加入适量粉煤灰可以提高混凝土最终抗压强度 实验表明。

This paper introduces the chemical compositions and properties of Baotou's fly-ash.Experiments show that the workability,the amount of cement and fine aggregate and the mechanical strength of concrete are influenced with the addtion of the fly-ash.The fly-ash not only increases the slump of concrete considerably but also reduces the amount of cement and fine aggregate.In the condition of equal cement,the addition of the fly-ash can raise the strength of the concrete.As shown by the experiments,there is no doubt that Baotou's fly-ash can be applied in the concrete engineering.