Dynamic mechanical behaviour of recycled crumb rubber concrete materials subjected to repeated impact

Liu, F.; Meng, L.-Y.; Chen, G.-X.; Li, L.-J.

doi:10.1179/1432891715z.0000000001733

Cited by 11 publications

(11 citation statements)

References 17 publications

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“…Experimental results revealed that the addition of rubber as substitution of aggregate dramatically increases impact behaviours and energy dissipation capacity. Some researchers [17,18] used SHPB test to study the impact compressive properties of rubberized concrete under high strain rates, and obtained the same results. Long et al [19] focused on the impact compressive properties of self-compacting concrete containing rubber particles.…”

Section: Introductionmentioning

confidence: 87%

Dynamic compressive and splitting tensile properties of concrete containing recycled tyre rubber under high strain rates

et al. 2018

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In order to raise the efficiency of resource utilization, recycling waste rubber particles into concrete as aggregate has been widely accepted. When the size and content of the rubber particles are appropriate, rubberized concrete can achieve many excellent properties. This study investigated the impact of rubber replacement on dynamic compressive and splitting tensile properties of concrete. The split Hopkinson pressure bar tests of rubberized concrete containing 5%, 10%, 15% and 20% volume replacement for sand were completed. The failure modes, stress curves and dynamic strength values of rubberized concrete under high strain rates were recorded. The results reveal that the dynamic compressive and splitting tensile strength of rubberized concrete decrease with increasing rubber content. Meanwhile, peak strain increases with increasing rubber content. Dynamic increase factors (DIFs) of compressive and splitting tensile strength also were calculated, where rubberized concrete shows a stronger strain rate sensitivity. The analysis of specific energy absorption illustrates that rubberized concrete with 15% rubber replacement has the best impact toughness. In addition, ratios of dynamic compressive-tensile strength of rubberized concrete were calculated, which are between 3.82 and 5.39.

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Section: Introductionmentioning

confidence: 87%

Dynamic compressive and splitting tensile properties of concrete containing recycled tyre rubber under high strain rates

et al. 2018

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“…A number of studies have reported an enhancement in energy dissipation and damping caused by the increase in rubber content [45][46][47][48][49][50][51][52][53][54]. On the other hand, there are limited studies on the influence of strain rates on rubberised concrete [55][56][57]. Due to its hyperelastic nature, rubber is expected to be highly sensitive to strain rates, with significant increase in strength with higher rates.…”

Section: Introductionmentioning

confidence: 99%

“…Due to its hyperelastic nature, rubber is expected to be highly sensitive to strain rates, with significant increase in strength with higher rates. Tests under compression at strain rates above 1×10 -2 have typically shown that the dynamic increase factors (DIF) for RuC, represented by dynamic-to-static strength ratios, are within those of CCM [55,57], whilst splitting tests have shown that the DIF for RuC are about two folds those of CCM [56,58].…”

Section: Introductionmentioning

confidence: 99%

Cyclic stress–strain rate-dependent response of rubberised concrete

Bompa

Elghazouli

2020

Construction and Building Materials

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This paper presents an experimental investigation into the constitutive response of rubberised concrete materials under monotonic and cyclic compression. After describing the test specimens and experimental arrangement, a detailed account of the stress-strain response of rubberised concrete materials, as well as their reference high strength conventional concrete, is given. The volumetric rubber content is varied between 0 and 40% of both fine and coarse aggregates. Both monotonic and cyclic loading conditions are considered for comparison, and three strain rate levels, simulating static, moderate and severe seismic action, are examined. The increase in rubber content is shown to have a detrimental effect on the stiffness and strength, as expected. However, with the increase in rubber content, rubberised concrete materials are shown to exhibit improved compressive recovery under cyclic loading, coupled with a higher energy accumulation rate, enhanced inter-cycle stability and lower inter-cycle degradation. It is also shown that the increase in strain rate, from static to severe seismic, leads to a notable increase in the stiffness and strength, with these enhancements becoming less significant with the increase in rubber content. Based on the results and observations, expressions for determining the unloading stiffness and residual strain, as a function of rubber content and strain rate, are proposed within the ranges considered. The suggested relationships enable the characterisation of rubberised concrete materials within widely used cyclic constitutive models.

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“…Section 4.2 shows that the fatigue lives of NC, RRAC-0, RRAC-10, RRAC-20, and RRAC-30 all obey the two-parameter Weibull distribution, which means that the failure probability P 0 can satisfy Eq. (17):…”

Section: Fatigue Life Under Different Failure Probabilitiesmentioning

confidence: 98%

“…Research works shown that generally, concrete with small volume of rubber were used as structural components [15,16]. However, concrete with large volume of rubber were used as pavement [17,18]. For the purpose of waste treatment, the use of waste tire for pavement is of prosperous future, as the ''black waste'' can be recycled and used heavily.…”

Section: Introductionmentioning

confidence: 99%

Fatigue performance of rubber-modified recycled aggregate concrete (RRAC) for pavement

Liu

Meng

Ning³

et al. 2015

Construction and Building Materials

118

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Dynamic mechanical behaviour of recycled crumb rubber concrete materials subjected to repeated impact

Cited by 11 publications

References 17 publications

Dynamic compressive and splitting tensile properties of concrete containing recycled tyre rubber under high strain rates

Dynamic compressive and splitting tensile properties of concrete containing recycled tyre rubber under high strain rates

Cyclic stress–strain rate-dependent response of rubberised concrete

Fatigue performance of rubber-modified recycled aggregate concrete (RRAC) for pavement

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