Paper Title:
Effect of Mineral Admixtures on Durability of Concrete Structure Subjected to Alkaline Saline Corrosions
  Abstract

Effect of a combination of alkali ions, sulfate ion and chloride ion on durability of concrete structures was analyzed, and the effect of different mineral admixtures on deterioration caused by Cl- penetration, sulfate attack and alkali-silica reaction was investigated. It is shown from wetting-drying test that sulfate attack on concrete was greatly relieved in high Cl- concentration solution, but diffusion test showed that Cl- diffusion was accelerated by SO4 2- ion existence as SO4 2- may incorporate with aluminum phase prior to Cl- ion. Replacement of cement with mineral admixtures such as ground blast furnace slag (SL) and metalaolin (MK) were beneficial for absorption of Cl- ion penetrated into paste, while ASTM C441 showed that fly ash (FA), metakaolin and natural zeolite (NZ) exhibited effectiveness in controlling Alkali-silica reaction (ASR).

  Info
Periodical
Key Engineering Materials (Volumes 302-303)
Edited by
Nai-Qian Feng and Gai-Fei Peng
Pages
68-72
DOI
10.4028/www.scientific.net/KEM.302-303.68
Citation
Q. L. Niu, N. Q. Feng, "Effect of Mineral Admixtures on Durability of Concrete Structure Subjected to Alkaline Saline Corrosions ", Key Engineering Materials, Vols. 302-303, pp. 68-72, 2006
Online since
January 2006
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Quan Lin Niu, Nai Qian Feng
Abstract:ASTM C1012 and GB2420 method were employed to evaluate the inhibiting effect of different mineral admixtures on sulfate attack of cement...
73
Authors: Quan Lin Niu, Nai Qian Feng
Abstract:Concrete conductivity is the reflection of the micro pore structure and the pore solution conductivity of concrete, but the conductivity of...
272
Authors: Yun Feng Li, Shu Ai Liu, Rong Qiang Du, Fan Ying Kong
Abstract:Concrete properties can be greatly improved with the advanced mineral admixtures such as steel slag powder. Used in combination with...
179
Authors: Wei Rong Huang, De Bin Yang, Jian Ting Zhou, Li Li, Wei Na Zhang
Abstract:In this paper, the performance of concrete is studied through different water-cement ratio, different air-content, different mineral...
425
Authors: Yan Jun Hu, Yan Liang Du
Chapter 5: Traditional Construction Materials
Abstract:In this study, concrete prisms were made with three mineral admixtures: fly ash, blast furnace slag or silica fume and with three...
758