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마이크로웨이브와 염산/과산화수소 혼합용액을 이용한순환골재의 부착 모르타르량 추정방법
Determination of Adhered Mortar Content of Recycled Aggregate using Microwave Irradiation and Mixed Solution of HCl and H2O2
- 변민우;
- 안종화
초록
This study aimed to determine adhered mortar content of recycled aggregate (RA) using microwave irradiation (700 W) and mixed solution of hydrochloric acid (HCl) and hydrogen peroxide (H2O2). The optimum condition was first to soak RA in tap water for 30 min and then RA was soaked in mixed solution of 30% HCl and 15% H2O2 (HCl : H2O2= 1 : 2) for 70-90 min after 15-min microwave irradiation. The mortar of RA in the condition was completely removed within 2.3 hrs. Reaction rate (k) with the condition was −0.6408 hr−1, which was about 190 times faster than that with HCl only (k = −0.0034 hr−1).
키워드
Adhered mortar; Microwave heating; Recycled aggregate; Acid treatment; Hydrogen peroxide
- 제목
- 마이크로웨이브와 염산/과산화수소 혼합용액을 이용한순환골재의 부착 모르타르량 추정방법
- 제목 (타언어)
- Determination of Adhered Mortar Content of Recycled Aggregate using Microwave Irradiation and Mixed Solution of HCl and H2O2
- 저자
- 변민우; 안종화
- 발행일
- 2015-09
- 유형
- Y
- 저널명
- 한국폐기물자원순환학회지
- 권
- 32
- 호
- 6
- 페이지
- 566 ~ 573