• 전산구조공학
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• 제24권1호
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• pp.14-21
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• 2011

• 한국건설순환자원학회지
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• 제8권3호
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• pp.30-35
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• 2013

• 한국건설순환자원학회지
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• 제14권3호
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• pp.26-32
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• 2019

• 한국건설순환자원학회지
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• 제19권1호
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• pp.33-38
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• 2024

• 한국환경과학회지
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• 제20권1호
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• pp.71-79
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• 2011

In this study, a series of soil concrete mixtures were tested for the compressive strength according to ratio of aggregate to binder, compaction energy, maximum aggregate size, ratio of silica fume to cement, and ratio of water to binder. The optimum mixing ratio of soil concrete mixtures composed of volcaniclastic, cement, silica fume, concrete polymer and water were analysed. The test results for optimum proportion were as follows ; (1)ratio of aggregate to binder was 4 : 1, (2)compaction energy level was level 2, (3)maximum aggregate size was 13 mm, (4)ratio of silica fume to cement was 10%, (5)ratio of water to binder was 25%. Also, dry type construction techniques were applied using the optimum soil concrete mixture. From the results of this study, the compressive strength of soil concrete and construction techniques were suitable for making eco-friendly soil pavement.

• 한국콘크리트학회:학술대회논문집
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• 한국콘크리트학회 2003년도 봄 학술발표회 논문집
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• pp.805-810
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• 2003

It is the real circumstance in the country that not only the data and special books but also people who have an expert knowledge are short of the field of the study about plastic wastes, so that to build the Database carrying out gathering info of that is the present question obviously. The business on recycling plastic, for some reason or other, is one of the best ways as called bright prospect industry to prevent environmental pollution and obtain economical outcome by using limited resources. Plastic wastes with construction industry especially using Polymer may have a good effect on the environment and human beings and have a fine view to produce functional and Eco-friendly concrete as well. In this study, Chemical resistance and Water Absorption test in Polymer concrete using bentonite as a shrinkage control agent was made an experiment by comparing with influence on concrete strength and used to offer some valuable data about Polymer concrete.

• 한국세라믹학회지
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• 제52권2호
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• pp.150-153
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• 2015

Recently, research on geopolymeric concrete that does not use cement as a binder has been actively investigated. Geopolymeric concrete is cement-free concrete. Masato, ocher and/or soil has been solidified into geopolymeric concrete by the reaction of specifically modified silicate as an alkali activator and inorganic binding materials such as blast furnace slag, fly ash or meta-kaolin, which is cured at room temperature to exhibit high compressive strengths. Based on the results, this study shows how geopolymeric concrete that uses specifically modified silicate and inorganic binding materials is implemented as eco-cement with no cement.

• 한국강구조학회 논문집
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• 제24권5호
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• pp.583-593
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• 2012

강판콘크리트(SC)구조에 관한 국내의 연구는 내력을 많이 요구하는 원전건물을 중심으로 연구가 진행되었다. 또한 SC구조는 공장생산과 모듈화시공을 통한 공기단축이 가능한 장점을 가지고 있다. 본 연구에서는 중 저층의 일반건물에서 낮은 강도로 사용 할 수 있는 SC구조의 토대를 마련하고자 하였다. 강도를 저감시키는 방법으로 친환경재료인 황토와 시멘트를 조합하여 중요도가 낮은 건물에 사용이 가능하도록 하였다. 본 연구에서는 중심압축하중을 받는 기둥부재를 대상으로 압축거동, 유효길이계수, 좌굴하중, 강판좌굴 및 스터드의 성능을 검증하였다.

• 한국건설순환자원학회논문집
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• 제6권1호
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• pp.80-87
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• 2011

본 연구는 콘크리트에 사용되는 시멘트를 대체할 수 있는 혼화재에 관한 것으로 산업부산물인 고로슬래그 미분말 및 석회석 미분말 등을 결합재로 하여 일반 포틀랜드시멘트에 비하여 이산화탄소 배출량이 적은 결합재이다. 또한 기존 고로슬래그 미분말의 보통 포틀랜드 시멘트 치환시 발생되는 초기강도 저하현상 및 한랭기 및 동절기 저온 환경에서 발생하는 강도 저하 현상을 개선한 탄소배출 저감형 결합재이다. 보통포틀랜드 시멘트와 비교하여 양생 재령에 상관없이 동등 이상의 강도 발현이 가능하므로 계절별 기후에 상관없이 현장에 적용할 수 있으며, 경제성 측면에서도 보통포틀랜드시멘트보다 저렴하여 이점이 있다. 또한 이산화탄소 배출량을 비교하였을 때 EM은 보통포틀랜드시멘트에 비하여 약 38%, EM를 사용한 콘크리트의 경우 약 8%의 저감효과가 있는 것으로 확인되었다.

• Earthquakes and Structures
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• 제23권6호
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• pp.493-502
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• 2022

In recent decades, infrastructural development has exploded, particularly in the coastal region of Saudi Arabia. The rising demand of most consumed aggregate in construction can be effectively compensated by the alternative material like scoria which lavishly exists in the western region. Scoria is characterized as lightweight aggregate beneficially used to develop lightweight concrete (LWC) - a potential alternative of normal weight concrete (NWC) ensuring reduction in the structural element's size, increase in building height, comparatively lighter foundation, etc. Hence, the goal of this study is to incorporate scoria-based structural lightweight concrete and evaluate its impact on superstructure and foundation design beside contributing to the economy of construction. Fresh, mechanical, and rheological properties of the novel LWC have been investigated. The structural analyses employ the NWC as well as LWC based structures under seismic and wind loadings. The commercial finite element package - ETABS was employed to find out the change in structural responses and foundations. The cost estimation and SWOT analysis for superstructure and foundation have also been carried out. It was revealed that the developed LWC enabled a more flexible structural design. Notable reduction in the steel and concrete prices of LWC might be possible in the low-rise building. It is postulated that the cost-effective and eco-friendly LWC will promote the usage of scoria as an effective alternative in Saudi Arabia and GCC countries for structurally viable LWC construction.