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학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 저널정보
- 한국계산역학회 Computers and Concrete, An International Journal Computers and Concrete, An International Journal Vol.19 No.4
- 발행연도
- 2017.1
- 수록면
- 419 - 427 (9page)
이용수
초록· 키워드
오류제보하기
With the rising global environmental awareness on energy saving and carbon reduction, as well as the environmental transition and natural disasters resulted from the greenhouse effect, waste resources should be efficiently used to save environmental space and achieve environmental protection principle of “sustainable development and recycling”. This study used recycled cement mortar and adopted the volumetric method for experimental design, which replaced cement (0%, 10%, 20%, 30%) with recycled materials (fly ash, slag, glass powder) to test compressive strength and ultrasonic pulse velocity (UPV). The hyperbolic function for nonlinear multivariate regression analysis was used to build prediction models, in order to study the effect of different recycled material addition levels (the function of Rm(F, S, G) was used and be a representative of the content of recycled materials, such as fly ash, slag and glass) on the compressive strength and UPV of cement mortar. The calculated results are in accordance with laboratory-measured data, which are the mortar compressive strength and UPV of various mix proportions. From the comparison between the prediction analysis values and test results, the coefficient of determination R2 and MAPE (mean absolute percentage error) value of compressive strength are 0.970-0.988 and 5.57-8.84%, respectively. Furthermore, the R2 and MAPE values for UPV are 0.960-0.987 and 1.52-1.74%, respectively. All of the R2 and MAPE values are closely to 1.0 and less than 10%, respectively. Thus, the prediction models established in this study have excellent predictive ability of compressive strength and UPV for recycled materials applied in cement mortar.
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참고문헌 (29)
참고문헌 신청
Bilir, T. / 2015 / Properties of mortars containing fly ash as fine aggregate / Constr. Build. Mater. 93(9):782~786
Chen, S. H. / 2011 / Mixture design of high performance recycled liquid crystal glasses concrete (HPGC) / Constr. Build. Mater. 25(10):3886~3892
Chen, W. / 2007 / The hydration of slag, part 1 : Reaction models for alkali-activated slag / J. Mater. Sci. 42(2):428~443
Chen, W. / 2007 / The hydration of slag, part 2 : Reaction models for blended cement / J. Mater. Sci. 42(2):444~464
Ćojbašić, L. / 2005 / Influence of the fly ash chemical composition on the Portland cement and fly ash mixture hydration mechanism / FACTA Universit. 3(1):117~125
Chen, S. H. / 2011 / Mixture design of high performance recycled liquid crystal glasses concrete (HPGC) / Constr. Build. Mater. 25(10):3886~3892
Chen, W. / 2007 / The hydration of slag, part 1 : Reaction models for alkali-activated slag / J. Mater. Sci. 42(2):428~443
Chen, W. / 2007 / The hydration of slag, part 2 : Reaction models for blended cement / J. Mater. Sci. 42(2):444~464
Ćojbašić, L. / 2005 / Influence of the fly ash chemical composition on the Portland cement and fly ash mixture hydration mechanism / FACTA Universit. 3(1):117~125
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