TENSILE STRENGTH PROPERTIES OF NORMAL STRENGTH CONCRETE DUE TO LOADING TYPE AND SPECIMENS SIZE
Sifat-Sifat Kekuatan Tarik Belah Beton Kuat Normal Berdasarkan Jenis Beban dan Ukuran Spesimen Silinder
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Abstract
Various size of Concrete cylinder come across often in any project site and the most simple and common method in obtaining the tensile strength of concrete is Splitting test. This study is to find out the influence of concrete cylinder size and loading type on behavior of splitting tensile strength of normal weight concrete. In this study height-diameter ratio h/d, Wide of load spreader t - radii of concrete cylinder r ratio (t/r) and diameter of the concrete cylinder as well are considered as variables. The current study was experimentally focused on behavior of Splitting Tensile strength of normal concrete. Specimens were concrete cylinder having compression strength f’c=25MPa and mix proportion was constant, namely 1:2:3 of cement-sand-crushed stone by volume with a constant water-cement ratio of 0.45. Cylinder depth to diameter ratios of the specimens was varied between 1 and 3. Data collected indicate that the wider the load spreader the higher the splitting tensile strength of the concrete. This is presumably due to changes in the load pattern from line-loads to evenly distributed-loads, and this phenomenon needs to be explored further. The load applied on the concrete specimens with wide spreader have a likelihood to be distributed one. Splitting tensile strength rises nonlinearly as the t-r ratio increase. The smaller the diameter of the specimens, the higher the splitting tensile strength gained
References
ASTM C39-93a Standard Test Method for Compressive Strength of Cylindrical Concrete Specimens (Annual Book of ASTM Standard Vol. 04.02)
ASTM C78-90 Standard Test Method for Flexural Strength of Cylindrical Concrete Specimens (Using Simple Beam with Third Point Loading) (Annual Book of ASTM Standard Vol. 04.02)
ASTM C192-90 Practice for Making and Curing Concrete Test Specimens in Laboratory (Annual Book of ASTM Standard Vol. 04.02) (Annual Book of ASTM Standard Vol. 04.02)
ASTM C496-11 Standard Test Method for Splitting Tensile Strength of Cylindrical Concrete Specimens (Annual Book of ASTM Standard Vol. 04.02) (Annual Book of ASTM Standard Vol. 04.02)
Alca, N., Alexander, S.D.B., Macgregor, J.G., (1997), Effect of Size on Flexural Behavior of High-Strength Concrete Beams, ACI Structural Journal, Vol. 94, No. 1, Pp. 59-67
Bazant, Z.P., Planas, J.,(1998). Fracture and Size Effect in Concrete and Other Quasibrittle Materials, CRC Press LLc
Bažant, Z.P., Pang, S.D., Vorechovsky, M., Novák, D. and Pukl, R. (2004). Statistical size effect in quasibrittle materials: Computation and extreme value theory, Fracture Mechanics of Concrete Structures (Proc., FraMCoS-5, 5th Int. Conf. on Fracture Mech. of Concrete and Concr. Structures, Vail, Colo.), Vol. 1, V.C. Li, K.Y. Leung, Willam, K.J., and Billington, S.L., eds., IA-FraMCoS, 189-196. (Available online on: http://cee.northwestern.edu/people/bazant/PDFs/Backup%20of%20Papers/P186.pdf
Domagała, L. (2020), Size Efect in Compressive Strength Tests of Cored Specimens of Lightweight Aggregate Concrete, Materials, 13(1187),1-16 doi:10.3390/ma13051187, Available: https://www.mdpi.com/1996-1944/13/5/1187/pdf
Hamad, A.J. (2017). Size and shape effect of specimen on the compressive strength of HPLWFC reinforced with glass fibres, Journal of King Saud University – Engineering Sciences (2017) 29, 373–380 https://doi.org/10.1016/J.JKSUES.2015.09.003
Krauthammer, T., Elfahal M.M., Lim, J.H., Ohno, T., Beppu, M., and Markeset, G. (2003). Size Effect in High Strength Concrete Cylinders Subject to Axial Impact, International journal of Impact Engineering vol 28(9), pp. 1001-1016. http://dx.doi.org/10.1016/S0734-743X(02)00166-5
Kim J., Yi, S., Park, C., and Eo, S. (1999). Size Effect on Compressive Strength of Plain and Spirally Reinforced Concrete Cylinders, ACI Structural Journal, Vol. 96, Pp. 88-93
Mardani-Aghabaglou, A., Bayqra, S.H., Nobakhtjoo, A. (2021). Specimen size and shape effects on strength of concrete in the absence and presence of steel fibers, Revista de la construcción vol.20 no.1 Santiago abr. 2021, http://dx.doi.org/10.7764/rdlc.20.1.128
Merdana, INyoman. (2006), The Influence of Concrete Cylinder Size on Mechanical Properties of Semi Lightweight Pumice Concrete, Dosen Muda research report (Unpublished), Mataram
MacGregor, J.G. (1997). Reinforced Concrete Mechanics and Design, 3rd Edition, Prentice Hall International Inc., USA
Neville, A.M., Brooks, J.J. (1997) Concrete Technology, Addison Wesley Longman Limited, Singapore
Neville, A.M. (1996), A General Relation for Strength of Concrete Specimens of Different Shape and Size, ACI Journal, Proceedings Vol. 63, No. 10, Pp. 1095-1110
Tang, T., Shah, S.P., Ouyang,C. (1992). Fracture Mechanic and size Effect of Concrete in Tension, Journal of Structural Engineering, ASCE Vol 118, No 11, Pp.3169-3185, ISSN 0733-9445/92/0011-3169 Paper No. 2942
Wight, J.K. and MacGregor, J.G. (2012). Reinforced Concrete Mechanic and Design 6th Edition, Pearson Education, Inc., Upper Saddle River, New Jersey 07458
Zaitsev, Y.V., Kovler, K.L. (1986). Notch sensitivity of Concrete and Size Effect, Part II: Stress State Effect, Cement and Concrete Research, Vol.16 No. 1, Pp. 7-16
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