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

Journal of Chongqing Jiaotong University(Natural Science) ›› 1993, Vol. 12 ›› Issue (4): 1-10.

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

Gong Shanglong

Bridge and Struclrue Engineeting Department

Received:1993-06-14 Online:1993-08-23 Published:2016-11-10

硅粉对混凝土的增强机理及试验研究

龚尚龙

重庆交通学院桥梁工程系, 630074

作者简介:龚尚龙,男,48岁,副教授

Abstract

Abstract: 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.

Key words: Silica fume, Superplasticizer, unproving mechanism

摘要： 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。

关键词: 硅粉, 超塑化剂, 增强机理

Gong Shanglong. Tests and Analysis on the Improving Mechanism of Silica Fume to the Concretes[J]. Journal of Chongqing Jiaotong University(Natural Science), 1993, 12(4): 1-10.

龚尚龙. 硅粉对混凝土的增强机理及试验研究[J]. 重庆交通大学学报（自然科学版）, 1993, 12(4): 1-10.

[1]	MEI Yingjun1，WANG Zhaobing2，DAI Chao3. Silica Fume's Impact on the Interface Bond Strength of Steel Fiber-cement Matrix [J]. Journal of Chongqing Jiaotong University(Natural Science), 2017, 36(1): 24-29.
[2]	CHEN Si tian,GONG Shang long,LIU Jing ying. The application study and prospect of HPC with silica fume and ultra fine sand [J]. Journal of Chongqing Jiaotong University(Natural Science), 2001, (4): 50-53.
[3]	GONG Shang-long, CHEN Si-tian, LIU Jing-ying, LIU Da-chao, YI Chui-shan, HUANG Wei-rong. The test and analysis of silica fume concrete with ultra-fine sand [J]. Journal of Chongqing Jiaotong University(Natural Science), 1999, 18(4): 103-115.
[4]	Tian Wenyu. Current Study and Application of Silica Fume in Concrete [J]. Journal of Chongqing Jiaotong University(Natural Science), 1998, 17(2): 100-107.