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J Korean Soc Environ Eng > Volume 36(12); 2014 > Article
J Korean Soc Environ Eng 2014;36(12): 843-850. doi: https://doi.org/10.4491/KSEE.2014.36.12.843
하수슬러지 소각재를 이용한 무기바인더 개발 I
이현주
용인대학교 환경학과
Development of Inorganic Binder Using Ash from Sewage Sludge Incinerator I
Hyun-joo Lee
Department of Environmental Science, Yongin University
Corresponding author  Hyun-joo Lee ,Tel: 031-8020-2759, Fax: 031-8020-2886, Email: hjleejh@yongin.ac.kr
Received: September 30, 2014;  Revised: December 4, 2014;  Accepted: December 26, 2014.  Published online: December 31, 2014.
ABSTRACT
This study investigated to recycle ash produced in the sewage sludge incinerator using reduction/stabilization. Nonsintering process was performed by binding cement, geobond and sand mixed with sewage sludge ash (SSA). Results showed that unconfined compressive strength could be obtained components of sewage sludge ash. it exceeded more than double score of the 22.54 Mpa (229.7 kg/cm2) Korean standard. chemical ingradients of the sewage sludge ash was mainly composed of SiO2, Al2O3, Fe2O3, CaO and others, which were similar to those of the each binders consisting cement and geobond. microstructure of solidified speceimen for the different admixture was related to the compressive strength according to SEM analysis. optimum mixing range of the sewage sludge ash to inorganic binder was found to be 10~40% which can widly safely regulate the confined compressive strength. This study revealed the sewage sludge ash can be partial replacement of the inorganic binder for recycling.
Key Words: Inorganic Binder, Geobond, Sewage Sludge Ash (SSA), Paste, Mortar, Recycling Construction Material
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