Paper Title:

Transportation Velocity and Crystallization Areas of Sulfate Solution in Concrete

Periodical Advanced Materials Research (Volumes 450 - 451)
Main Theme Trends in Building Materials Research
Edited by Jianjun Zheng, Xiuli Du, Weiming Yan, Yue Li and Jianwei Zhang
Pages 291-294
DOI 10.4028/www.scientific.net/AMR.450-451.291
Citation Kun Lin Ma et al., 2012, Advanced Materials Research, 450-451, 291
Online since January, 2012
Authors Kun Lin Ma, Guang Cheng Long, Song Zhi Dai
Keywords Concrete, Crystallization, Sulfate, Transportation
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Abstract

In order to investigate transportation of sulfate solution in concrete and its influence factors, transportation velocity and crystallization areas of sulfate solution in concrete, porosity and pore structure of concrete were tested by methods of transportation crystallization test and evaporable water test. Results show that under temperature (20±2)℃ and relative humidity (60±5)% environment, sulfate solution permeate concrete wall and get to concrete surface in very short time. The decrease of water to binder ratio and addition of mineral mixture to concrete can decrease transportation velocity and crystallization areas of sulfate solution in concrete. The transportation velocity and crystallization areas have great correlation with concrete porosity with pore dia. > 30nm.