Paper Title:
Inhibiting Effect of Mineral Powder on Sulfate Attack of Cement Mortar
  Abstract

ASTM C1012 and GB2420 method were employed to evaluate the inhibiting effect of different mineral admixtures on sulfate attack of cement mortar, and the mass loss of mortar specimens after drying-wetting cycles was measured for comparison. It is shown that all the mineral admixtures, including ground blast furnace slag (SL), fly ash (FA), natural zeolite (NZ) and metakaolin (MK) were effective in decreasing the 15-week expansion and increasing the corrosion resistance coefficient of the specimens immersed in Na2SO4 solution. The wetting and drying test however, showed inconsistent result, as both physical and chemical attack may soon occur due to quick accumulation of sulfate by capillary absorption instead of diffusion mechanism.

  Info
Periodical
Key Engineering Materials (Volumes 302-303)
Edited by
Nai-Qian Feng and Gai-Fei Peng
Pages
73-78
DOI
10.4028/www.scientific.net/KEM.302-303.73
Citation
Q. L. Niu, N. Q. Feng, "Inhibiting Effect of Mineral Powder on Sulfate Attack of Cement Mortar", Key Engineering Materials, Vols. 302-303, pp. 73-78, 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: Yun Feng Li, Ling Wang, Yan Yao, Hui Lin
Abstract:Workability, mechanical properties and durability of concrete can be greatly improved with the advanced mineral admixtures such as steel slag...
415
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: 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
Authors: Xue Fang Wang, Jian Lan Zheng
Chapter 3: Green Building Materials
Abstract:Influence of compounded mineral admixtures on shrinkage and early-age cracking behaviors of concrete was studied, based on the fellow...
738