폐유리와 산화 그래핀을 사용한 시멘트 모르타르의 물성 연구
Physical Characteristics of Cement Mortar Prepared Using Waste Glass and Graphene Oxide
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초록
본 연구에서는 폐유리를 골재로 재활용하고자 폐유리와 산화 그래핀을 사용한 시멘트 모르타르의 압축강도 및 길이 변화율 등을검토하였다. 3일 및 7일 압축강도는 일반 모래 대체용 폐유리 사용량이 증가할수록 상승하였다. 특히, 폐유리 사용량이 10∼50% 범위일 경우, 압축강도는 큰 폭으로 상승하는 경향을 나타내었다. 더불어 폐유리 50% 조건에서도 산화 그래핀의 첨가량이 증가됨에따라 압축강도가 상승하였으며, 0.2%를 첨가하였을 때, 압축강도는 42.6 N/mm2 이었다. 폐유리의 사용량이 증가됨에 따라 모르타르의 길이 변화율은 증가하였으나, 50% 이상에서는 길이변화율이 감소하는 경향도 나타내었다. 폐유리 사용량 50% 모르타르에서는 산화 그래핀 첨가량이 증가할수록 길이 변화율이 감소하는 경향을 나타내었으며, 이는 산화 그래핀의 시멘트 수화반응 촉진작용과 이온이동 억제효과로 추정되었다.
Abstract
This study investigated on the compressive strength and the length change test with using the waste glass and graphene oxide for recycling the waste glass as the aggregate. Curing on 3-day and 7-day, the compressive strength was enhanced as the usage of waste glass was increased. Especially, the huge difference in the compressive strength was observed when the amount of substituting on the waste glass was used on 10~50%. With 50% of waste glass condition, the compressive strength was portionally enhanced as the usage of graphene oxide was increased and its value was 42.6 N/mm2 with 0.2% of graphene oxide. In terms of the length change test, the use of high content of waste glass led length change value to increase, but it was dropped down as the portion of waste glass was above 50%. Furthermore, in the case of using 50% of waste glass, the use of high amount of graphene oxide tended to decrease the length change value. That is, graphene oxide may contribute on boosting the cement hydration reaction and blocking the ion’s movement.
참고문헌 (25)
- Ministry of Environment of Korea, "Resource Recycling Law", Public document, ~ (2018)
- Ministry of Environment of Korea, "Waste Management Act Enforcement Rules", Public document, ~ (2019)
- Development Status of Domestic and Overseas Recycling Demand for Waste Glass Bottles, "KEITI", Public document, ~ (2018)
- Stephane Multon, "Chemo-mechanical modeling for prediction of alkali silica reaction (ASR) expansion", Cement and Concrete Research, 39(6), pp.490~500 (2009)
- Farshad Rajabipour, "Alkali-silica reaction. Current understanding of the reaction mechanisms and the knowledge gaps", Cement and Concrete Research, 76, pp.130~146 (2015)
- Joao Feiteira, "Polymer action on alkali-silica reaction in cement mortar", Cement and Concrete Research, 44, pp.97~105 (2013)
- T. T. H. Bach, "Retention of alkali ions by hydrated low-pH cements: Mechanism and Na+", K+ selectivity, 2013, pp.51, 1893~1903
- Taehwan Kim, "Alkali-silica reaction. Kinetics of chemistry of pore solution and calcium hydroxide content in cementitious system", Cement and Concrete Research, 71, pp.36~45 (2015)
- Sardar Kashif UrRehman, "A Sustainable Graphene Based Cement Composite", Sustainability, 9(7), pp.1~20 (2017)
- Sungjin Park, "Chemical methods for the production of graphenes", Nature Nanotechnology, 4(4), pp.217~224 (2009)
- Yanwu Zhu, "Graphene and Graphene Oxide: Synthesis, Properties, and Applications", Advanced Materials, 22(35), pp.3906~3924 (2010)
- Virendra Singh, "Graphene based materials: Past, present and future", Progress in Materials Science, 56(8), pp.1178~1271 (2011)
- Qin Wang, "Influence of graphene oxide additions on the microstructure and mechanical strength of cement", New Carbon Materials, 30(4), pp.349~356 (2015)
- Kai Gong, "Reinforcing Effects of Graphene Oxide on Portland Cement Paste", Journal of Materials in Civil Engineering, 27(2), pp.1~6 (2015)
- Xiangyu Li, "Incorporation of graphene oxide and silica fume into cement paste: A study of dispersion and compressive strength", Construction and Building Materials, 123, pp.327~335 (2016)
- Zhu Pan, "Mechanical properties and microstructure of a graphene oxide-cement composite", Cement and Concrete Composites, 58, pp.140~147
- M. Aly, "Effect of colloidal nano-silica on the mechanical and physical behaviour of waste-glass cement mortar", Materials &Design, 33, pp.127~135 (2012)
- M. Aly, "Effect of nano clay particles on mechanical, thermal and physical behaviours of waste-glass cement mortars", Materials Science and Engineering: A, 528(27), pp.7991~7998 (2011)
- Sung-Yoon Hong, "Alkali binding in cement pastes Part 1. The C-S-H phase", Cement and Concrete Research, 29(12), pp.1893~1903 (1999)
- W. Chen, "Alkali binding in hydrated Portland cement paste", Cement and Concrete Research, 40(5), pp.716~722 (2010)
- Theodore Chappex, "Alkali fixation of C-S-H in blended cement pastes and its relation to alkali silica reaction", Cement and Concrete Research, 42(8), pp.1049~1054 (2012)
- E. L. Hopital, "Alkali uptake in calcium alumina silicate hydrate (C-A-S-H)", Cement and Concrete Research, 85, pp.122~136 (2016)
- M. H. Al-Khaldi, "Reaction of citric acid with calcite", Chemical Engineering Science, 62(21), pp.5880~5896 (2007)
- B. Lian, "Extraordinary water adsorption characteristics of graphene oxide", Chemical Science, 11, pp.1~6 (2018)
- Vira Agieienko, "Solvent-induced changes in the graphene oxide absorption spectrum. The case of dimethylsulfoxide", water mixtures, 2019, pp.287, 110942~