粉煤灰改善混凝土耐久性研究进展

Research of fly-ash for improvement to characteristics of concrete durability

粉煤灰作为混凝土的一种重要掺加剂,对混凝土的耐久性能起到了重大改善,并且掺加了粉煤灰的早强混凝土、大掺量粉煤灰混凝土在混凝土工程中得到了极大发展。虽然在粉煤灰的应用上还存在一定的问题,但粉煤灰混凝土的应用已经是大势所趋了。本文将就粉煤灰在改善混凝土性能和大掺量粉煤灰混凝土的特点加以详述,并展望了粉煤灰混凝土的前景。

Fly-ash act as a addition of concrete, which make a great improvement to mechanical characteristics and durability of concrete, furthermore, the concrete with early strength and high volume fly-ash concrete,whieh with fly-ash,have, made a great development in concrete engineering. There are some question in fly-ash application, but the application of fly-ash concrete is already a general trend. This paper will expound that fly-ash improve concrete characteristics and the characteristic of high volume fly-ash concrete, and forecast the foreground of fly-ash concrete