Compressive strength prediction of crumb rubber mortar based on mesoscale model

Chen, Huailiang; Li, Danda; Ma, Xing; Zhong, Zheng; Abd-Elaal, El-Sayed

doi:10.1016/j.engfailanal.2023.107485

Cited by 2 publications

(1 citation statement)

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“…Application of crumb rubber as a construction material has been explored in the past. Researchers tried to investigate the possibilities of using crumb rubber as a replacement for fine aggregate either in concrete [6][7][8] or cement mortar [9][10][11][12]. It was found that using the crumb rubber obtained from waste tires to replace sand in concrete or cement mortar changed the intrinsic mechanical properties of composites, resulting in a lower compressive strength, a lighter unit weight, and a lower modulus of elasticity [6][7][8][9][10][11][12].…”

Section: Introductionmentioning

confidence: 99%

Seismic Performance of Infilled Reinforced Concrete Frame with Crumb Rubber Mortar Wall Panel

Chayaboot,

Boonpichetvong,

Pannachet

et al. 2024

Civ Eng J

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In this paper, the seismic performance of reinforced concrete (RC) frames with crumb rubber mortar wall panels is reported. The tests of the crumb rubber mortar were conducted to obtain model parameters for equivalent diagonal compression struts. With a higher percentage of sand replacement by crumb rubber, the unit weight, the compressive strength, the tensile strength, and the modulus of elasticity of the crumb rubber cement mortar are decreased. Nonlinear pushover analysis of a simple frame shows that the RC frame with a wall panel with less crumb rubber demonstrates lower lateral deformation ability. The failure modes are affected by the amount of crumb rubber and are dependent on the modeling choice of the equivalent compression strut as the wall panel representative. Finally, the seismic performance of the RC building was studied by the equivalent static approach to explore the influence of the crumb rubber mortar wall panels on internal forces and deformations of the frame. With a higher percentage of crumb rubber, the weight of the infill wall panels and the overall weight of the building are reduced, which meets lower seismic base shear demand. This benefit is, however, traded off with higher lateral deformation and also higher inter-story drift of the studied building frames. Doi: 10.28991/CEJ-2024-010-02-09 Full Text: PDF

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