硅粉对混凝土的增强机理及试验研究

Tests and Analysis on the Improving Mechanism of Silica Fume to the Concretes

本文阐述共分析了硅粉对混凝土的增强机理。对国外目前争论的焦点,即硅粉是增强了水泥石的强度还是增强了骨料与水泥石的粘结强度进行了试验分析,证实了硅粉可以明显地提高水泥石的强度,而界面粘结强度仍然是混凝土(或砂浆)的簿弱环节。

This article describes the mechanism by which silica fume improves the concrete. The tests and analysis on which the article based aimed at the international contravcrsial focus at present-docs silica fume improve the paste itself or the bond strength of the paste to the aggregtes? The tests showed that silica fume can obviously improve the strerngth of the paste while the bond strength is still the weakest part in the concrete.