珍珠岩掺合料混凝土轨枕制备研究

Applied test of perlite admixture in concrete railway sleeper

通过试验测试研究珍珠岩矿物掺合料及其对混凝土主要性能的影响,在混凝土中珍珠岩掺合料替代水泥10%～20%可不同程度地改善工作性能,提高后期强度。该掺合料替代水泥20%制备C60混凝土铁道Ⅲ型轨枕的试验及其检测结果显示其主要性能指标均有所提高。

The experimental data about concrete mixed with perlite admixture showed that perlite admixture in 10%-20% amount of replacing cement enhanced effectively the workability, late-age mechanical strength and durability for concrete. The railway sleepers made of C60-Grade concrete with perlite admixture in 20% amount of replacing cement were probingly produced in producing-line of factory. The summary was concluded that the railway sleepers made of concrete with 20% perlite admixture not only satisfied standards of product quality, but also prior to railway sleepers made of concrete without admixture on major properties.