Abstract
Effects of strain rate and water-to-cement ratio on the dynamic compressive mechanical behavior of cement mortar are investigated by split Hopkinson pressure bar (SHPB) tests. 124 specimens are subjected to dynamic uniaxial compressive loadings. Strain rate sensitivity of the materials is measured in terms of failure modes, stress-strain curves, compressive strength, dynamic increase factor (DIF) and critical strain at peak stress. A significant change in the stress-strain response of the materials with each order of magnitude increase in strain rate is clearly seen from test results. The slope of the stress-strain curve after peak value for low water-to-cement ratio is steeper than that of high water-to-cement ratio mortar. The compressive strength increases with increasing strain rate. With increase in strain rate, the dynamic increase factor (DIF) increases. However, this increase in DIF with increase in strain rate does not appear to be a function of the water-to-cement ratio. The critical compressive strain increases with the strain rate.
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LI Q M, YE Z, Q, MA G W, REID S R. Influence of overall structural response on perforation of concrete targets [J]. International Journal of Impact Engineering, 2007, 34: 926–941.
COTSOVOS D M, PAVLOVIC M N. Numerical investigation of concrete subjected to compressive impact loading. Part 2: Parametric investigation of factors affecting behaviour at high loading rates [J]. Computers and Structures, 2008, 86: 164–180.
BISCHOFF P H, PERRY S H. Compressive behavior of concrete at high strain rates [J]. Materials and Structures, 1991, 24: 425–450.
WANG Z L, WU L P, WANG J G. Experimental and numerical analysis on effect of fiber aspect ratio on mechanical properties of SRFC [J]. Construction and Building Materials, 2010, 24: 559–565.
SUARIS W, SHAH S P. Properties of concrete subjected to impact [J]. Journal of Structural Engineering, 1983, 109: 1727–1741.
HARSH S, SHEN Z, DARWIN D. Strain-rate sensitive behavior of cement Paste and mortar in compression [J]. ACI Materials Journal, 1990, 87: 508–516.
WATSTEIN D. Effect of straining rate on the compressive strength and elastic properties of concrete [J]. ACI Journal Proceedings, 1952, 24: 729–744.
DHIR R K, SANGHA C M. A study of the relationships between time, strength, deformation and fracture of plain concrete [J]. Magazine of Concrete Research, 1972, 24: 197–208.
TEKALUR S A, SHUKA A, SADD M, LEE K W. Mechanical characterization of a bituminous mix under quasi-static and high strain rate loading [J]. Construction and Building Materials, 2009, 23: 1795–1802.
ZHOU Z L, ZOU Y, LI X B, JIANG Y H. Stress evolution and failure process of Brazilian disc under impact [J]. Journal of Central South University, 2013, 20: 172–177.
SUARIS W, SHAH S P. Rate-sensitive damage theory for brittle solids [J]. Journal of Engineering Mechanics, 1984, 110: 985–997.
ATCHLEY B L, FURR H L. Strength and energy absorption capabilities of plain concrete under dynamic and static loadings [J]. ACI Journal Proceedings, 1967, 64: 745–756.
ABRAMS D A. Effect of rate of application of load on the compressive strength of concrete [J]. ASTM Journal Proceedings, 1917, 17: 364–377.
WU W, ZHANG W, MA G. Mechanical properties of coper slag reinforced concrete under dynamic compression [J]. Construction and Building Materials, 2010, 24: 910–917.
TAI Y S. Uniaxial compression tests at various loading rates for reactive powder concrete [J]. Theoretical and Applied Fracture Mechanics, 2009, 52: 14–21.
FREW D J, FORRESTAL M J, CHEN W. A split Hopkinson pressure bar technique to determine compressive stress-strain data for rock materials [J]. Experimental and Mechanics, 2001, 41: 40–46.
GILKEY H J. Water-cement ratio versus strength-Another look [J]. ACI Journal Proceedings, 1960, 57: 1287–1312.
NAGARAJ T S, BANU Z. Generation of Abrams’s law [J]. Cement and Concrete Research, 1996, 26: 933–942.
BHANJA S, SENGUPTA B. Modified water-cement ratio law for silica fume concretes [J]. Cement and Concrete Research, 2003, 33: 447–550.
POPOVICS S, UJHEYI J. Contribution to the concrete strength versus water-cement ratio relationship [J]. Journal of Materials in Civil Engineering, 2008, 20: 459–463.
SCOTT B D, PARK R, PRIESTLEY M J N. Stress-strain behavior of concrete confined by overlapping hoops at low and high strain rates [J]. ACI Journal Proceedings, 1982, 79: 13–27.
DILGER W H, KOCH R, KOWALCZYK R. Ductility of plain and confined concrete under different strain rates [J]. ACI Journal Proceedings, 1984, 81: 73–81.
SOROUSHIAN P, CHOI K B, ALHAMAD A. Dynamic constitutive behavior of concrete [J]. ACI Journal Proceedings, 1986, 83: 251–259.
TEDESCO J W, POWELL J C, ROSS C A, HUGHES M L. A strain rate dependent concrete material model for ADINA [J]. Computers and Structures, 1997, 64: 1052–1067.
GROTE D L, PARK S W, ZHOU M. Dynamic behavior of concrete at high strain rates and pressures: I. Experimental characterization [J]. International Journal of Impact Engineering, 2001, 25: 869–886.
ZHANG M, LI Q M, HUANG F L, WU H J, LU Y B. Inertia-induced radial confinement in an elastic tubular specimen subjected to axial strain acceleration [J]. International Journal of Impact Engineering, 2010, 37: 459–464.
LI Q M, LU Y B, MENG H. Further investigation on the dynamic compressive strength enhancement of concrete-like materials based on split Hopkinson pressure bar tests [J]. International Journal of Impact Engineering, 2009, 36: 1335–1345.
TAI Y S. Uniaxial compressive tests at various loading rates for reactive powder concrete [J]. Theoretical and Applied Fracture Mechanics, 2009, 52: 14–21.
BEPPU M, MIWA K, ITOH M, KATAYAMA M, OHNO T. Damage evaluation of concrete plates by high-velocity impact [J]. International Journal Impact Engineering, 2008, 35: 1419–1426.
ZHOU X Q, HAO H. Modelling of compressive behaviour of concrete-like materials at high strain rate [J]. International Journal of Solid Structures, 2008, 45: 4648–4661.
HARTMANN T, PIETZSCH A, GEBBEKEN N. A hydrocode material model for concrete [J]. International Journal of Protective Structures, 2010, 1: 443–468.
ZHANG X, RUIZ G. YU R C, POVEDA E, PORRAS R. Rate effect on the mechanical properties of eight types of high strength concrete and comparison with FIB MC2010 [J]. Construction and Building Materials, 2012, 30: 301–308.
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Foundation item: Project(51479048) supported by National Natural Science Foundation of China
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Zhou, Jk., Ge, Lm. Effect of strain rate and water-to-cement ratio on compressive mechanical behavior of cement mortar. J. Cent. South Univ. 22, 1087–1095 (2015). https://doi.org/10.1007/s11771-015-2620-9
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DOI: https://doi.org/10.1007/s11771-015-2620-9