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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 저널정보
- 한국콘크리트학회 International Journal of Concrete Structures and Materials International Journal of Concrete Structures and Materials Vol.11 No.2
- 발행연도
- 2017.6
- 수록면
- 343 - 363 (21page)
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초록· 키워드
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The objective of this work was finding out the most advisable testing conditions for an effective and robust characterization of the tensile strength (TS) of concrete disks. The independent variables were the loading geometry, the angle subtended by the contact area, disk diameter and thickness, maximum aggregate size, and the sample compression strength (CS). The effect of the independent variables was studied in a three groups of experiments using a factorial design with two levels and four factors. The likeliest location where failure beginning was calculated using the equations that account for the stress–strain field developed within the disk. The theoretical outcome shows that for failure beginning at the geometric center of the sample, it is necessary for the contact angle in the loading setup to be larger than or equal to a threshold value. Nevertheless, the measured indirect tensile strength must be adjusted to get a close estimate of the uniaxial TS of the material. The correction depends on the loading geometry, and we got their mathematical expression and cross-validated them with the reported in the literature. The experimental results show that a loading geometry with a curved contact area, uniform load distribution over the contact area, loads projected parallel to one another within the disk, and a contact angle bigger of 12° is the most advisable and robust setup for implementation of BT on concrete disks. This work provides a description of the BT carries on concrete disks and put forward a characterization technique to study costly samples of cement based material that have been enabled to display new and improved properties with nanomaterials.
목차
Abstract
1. Introduction
2. Theoretical Aspects
3. Experimental Aspects
4. Experimental Design
5. Experimental Results and Discussion
6. Conclusions
References
참고문헌 (78)
참고문헌 신청
Adams, G. G., & Nosonovsky, M. (2000). Contact modelingforces. Tribology International, 33, 431?442. doi:10.1016/S0301-679X(00)00063-3.
Akazawa, T. (1943). New test method for evaluating internal stress due to compression of concrete (the splitting tension test) (part 1). Journal of Japanese Civil Engineering Institute, 29, 777?787.
Aliha, M. R. M. (2013). Indirect tensile test assessments for rock materials using 3-D disc-type specimens. Arabian Journal of Geosciences. doi:10.1007/s12517-013-1037-8.
Andreev, G. E. (1991). A review of the Brazilian test for rock tensile strength determination. Part II: Contact conditions. Mining Science and Technology, 13, 457?465. doi:10.1016/0167-9031(91)91035-G.
ASTM. (2003). C31/C 31M-03 Pra´ctica Normalizada para Preparacio´n y Curado de Especı´menes de Ensayo de Concreto en la Obra. In Book of standards Vol. 04.02 concrete and aggregates. West Conshohocken, PA: ASTM International.
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UCI(KEPA) : I410-ECN-0101-2018-532-000881316