| 유리 연마슬러지를 혼합한 모르타르의 알칼리-실리카 반응에 관한 고찰 |
| 이승헌, 황해정, 이승태1, 김기동 |
군산대학교 신소재
1군산대학교 토목공학 |
| Consideration of Alkali-Silica Reaction of Mortar Containing Glass Abrasive Sludge |
| Seung-Heun Lee, Hae-Jeong Hwang, Seung-Tae Lee1, Ki-Dong Kim |
Department of Material Science and Engineering, Kunsan National University
1Department of Civil Engineering, Kunsan National University |
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| ABSTRACT |
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After observing the alkali-silica reaction of the mortar that contains glass abrasive sludge, when evaluating it by a mineral or chemical point of view, it contained reactive silica $(59{sim}67%)$ and $R_20$ elements $(4.3{sim}9.8%)$. Also, when evaluated by the mortar bar method, an addition of 5 wt% of CRT glass abrasive sludge is judged harmless. However when adding more, there appear severe contractions, thus carefulness is needed while using. Less than 0.10% of expansion was measured when adding up to 30wt% of flat glass abrasive sludge. However, after 30 days of the measurement, more than 0.1% rate of expansion was measured when adding more than 5 wt%. Therefore, more detailed experiments are needed in case of more than 5 wt%. |
| Key words:
Alkali silica reaction, Glass abrasive sludge, Mortar bar method |
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