Effect of Carbonation on Abrasion Resistance of Alkali-Activated Slag with Various Activators

被引：4
作者：
Kim, Hyeong-Ki [1 ]
Song, Keum-Il [2 ]
Song, Jin-Kyu [2 ]
Jang, Jeong Gook [3 ]
机构：
[1] Chosun Univ, Sch Architecture, 309 Pilmun Daero, Gwangju 61452, South Korea
[2] Chonnam Natl Univ, Sch Architecture, 77 Yongbong Ro, Gwangju 61186, South Korea
[3] Incheon Natl Univ, Inst Urban Sci, Div Architecture & Urban Design, 119 Acad Ro, Incheon 22012, South Korea
来源：
MATERIALS | 2019年 / 12卷 / 17期
基金：
新加坡国家研究基金会;
关键词：
abrasion resistance; carbonation; alkali-activated slag; activators; strength; MICROSTRUCTURAL CHANGES; SULFATE ATTACK; CONCRETE; ACID; ASH; PERFORMANCE; COMBUSTION;
D O I：
10.3390/ma12172812
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
The effect of carbonation on the abrasion resistance of alkali-activated slag (AAS) was investigated. Various activator sets were selected for synthesizing AAS specimens, and the compressive strength was measured before and after carbonation. The abrasion resistance of the specimens was measured in accordance with the ASTM C944 test method. The relationship between the mass loss caused by abrasion and compressive strength was analyzed to understand the effect of matrix strength on abrasion resistance. Test results showed that the decrease in compressive strength of AAS specimens by carbonation reduced their abrasion resistance. In addition, the abrasion resistance of AAS before and after carbonation was sensitively influenced by activator type. It can be concluded that additional caution is required when using AAS where abrasion may have occurred.
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页数：10
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