Carbonation characteristics of cement-based materials under the uniform distribution of pore water

被引：24
作者：
Yahui, Yang [1 ,3 ]
Gang, Xu [1 ,2 ]
Bin, Tian [1 ,3 ]
机构：
[1] China Three Gorges Univ, Hubei Key Lab Disaster Prevent & Mitigat, Yichang 443002, Hubei, Peoples R China
[2] China Three Gorges Univ, Coll Civil Engn & Architecture, Yichang, Peoples R China
[3] China Three Gorges Univ, Coll Hydraul & Environm Engn, Yichang, Peoples R China
来源：
CONSTRUCTION AND BUILDING MATERIALS | 2021年 / 275卷
关键词：
Carbonation; Cement-based material; Ambient relative humidity; Uniform pore water distribution; RELATIVE-HUMIDITY; SUPERCRITICAL CARBONATION; PREDICTION MODEL; CONCRETE; MOISTURE; MORTARS; DIOXIDE; PH; TEMPERATURE; COEFFICIENT;
D O I：
10.1016/j.conbuildmat.2020.121450
中图分类号：
TU [建筑科学];
学科分类号：
0813 ;
摘要：
Two different moisture pre-treatment methods were used for the mortar specimens, and the carbonation tests were performed simultaneously. Results show that moisture transmission had a significant impact on the depth and degree of carbonation. A new pre-treatment method was proposed for the uniform distribution of the mortar specimens in the pore water. Furthermore, the carbonation characteristics of cement-based materials in uniformly distributed pore water under different ambient relative humidity were studied. The accelerated carbonation test using the uniformly distributed pore water was more consistent with the natural carbonation law. (C) 2020 Elsevier Ltd. All rights reserved.
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页数：8
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