• 한국건축시공학회:학술대회논문집
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• 한국건축시공학회 2020년도 봄 학술논문 발표대회
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• pp.185-186
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• 2020

This study In order to reduce the amount of cement that generates a large amount of carbon dioxide and attempts to find a recycling method to solve environmental problems by using biomass fly ash. Experiments were conducted according to replacement ratio of biomass fly ash based on GGBFS, The test items are flowability, air content, unit volume weight, water absorption, flexural strength and compressive strength. As a result of the experiment, as increased replacement ratio of biomass fly ash, the flowability and air content was increased. As increased replacement ratio, the density was decreased and water absorption was increased. The compressive strength tended to decrease as increased replacement ratio. The flexural strength tended to increased as increased replacement ratio.

• 한국건축시공학회:학술대회논문집
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• 한국건축시공학회 2019년도 춘계 학술논문 발표대회
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• pp.209-210
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• 2019

Current international concerns are the energy crisis due to climate change and depletion of fossil fuels due to global warming. Korea has a very high dependency on energy imports 93%. In Korea, 63% of the country is forested, and a power plant using wood biomass is being built in Korea. Biomass fly ash, a by-product of biomass energy generation, is now being discarded. There is little research to utilize discarded biomass fly ash. Therefore, this study aims to solve the environmental problems, develop new mixed materials, improve the quality and utilize the biomass fly ash, which is a by-product of the industrial waste. As a result of the experiment, the flowability decreased as the replacement ratio of biomass fly ash increased. As the replacement ratio of biomass fly ash decreased, the amount of air content.

• 한국건축시공학회:학술대회논문집
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• 한국건축시공학회 2019년도 추계 학술논문 발표대회
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• pp.21-22
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• 2019

In order to prevent global warming according to fossil fuel use, countries around the world are making efforts through the Kyoto Protocol and the Paris Climate Change Convention. In addition, in order to prepare for high oil prices, researches such as the development of various renewable energy are being conducted. At present, the domestic production rate of energy sources in Korea is low at 18.1%, and power plants using forest biomass are being constructed to meet the domestic situation where 63% of the land is a forest. In 2015, the global production of wood pellets, a raw material for wood-based biomass power generation, was 28 million tons, up 7.7% from 2014, and has increased tenfold over the last decade. This is a result of increased demand for biomass. Korea is also increasing every year. However, biomass fly ash, an industrial by-product generated by biomass energy generation, is now being disposed of entirely, and there is little research to utilize it. Therefore, this paper will use biomass fly ash, an industrial by-product, which is currently being discarded due to a lack of separate treatment methods, as an admixture concept to contribute to solving environmental problems, developing new admixtures, improving quality, and seeking recycling plans.

• 한국건축시공학회지
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• 제23권6호
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• pp.663-671
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• 2023

본 연구에서는 목질계 바이오매스(Bio-SRF, 우드펠릿)를 연료로 사용하는 발전소 3곳에서 배출된 4종의 목질계 플라이애시(FA)의 재활용성을 실험적으로 검토하였다. FA의 물리 분석(입형, 입도분포, 분말도, 밀도)과 화학 분석(화학조성, 중금속 함량)을 수행하였고, KS L 5405에 준하여 혼입률 5~20%의 모르타르 시험체를 제작하고 플로우와 압축강도를 측정하였다. 4종의 FA는 입경 약 20~30㎛, 밀도 약 2.3~2.5g/cm³, 분말도 2,600~4,900cm²/g, SiO₂, Al₂O₃, Fe₂O₃, CaO 성분이 약 50~90%를 차지하고 있으며, 염소와 SiO₂ 함량을 배제하고 KS L 5405의 FA 2, 3형과 유사한 특성을 보였다. 모르타르 혼입 평가 결과, 펠릿 연소 FA는 5~20% 혼입 범위에서 모르타르 압축강도는 34~47MPa로 측정되었다. 목질계 연료 100%를 연소한 FA는 혼화재 대체재로서 재활용성이 높다고 평가된다.