On the fracture of brittle and quasi-brittle materials subject to uniaxial compression and the interaction of voids on cracking

Iskander, Mina; Shrive, Nigel G.

doi:10.1016/j.conbuildmat.2021.123217

Cited by 5 publications

(1 citation statement)

References 26 publications

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“…When there are numerous voids in a material, the internal stress becomes concentrated around the voids, resulting in more rapid material destruction. Particularly, brittle materials undergo a remarkable reduction in their mechanical properties due to voids owing to their low tensile strength [14][15][16]. To address this issue, various studies of permeable pavement with an added polymer have been conducted.…”

Section: Introductionmentioning

confidence: 99%

Mechanical and Microscopic Characteristics of Polyurethane-Based Pervious Pavement Composites

et al. 2021

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Conventional pervious pavement materials (PPM) that consist of cement and aggregate materials are known for poor durability due to their brittle behavior. Thus, to enhance the durability, we fabricated polymeric PPMs from durable and abundant polyurethane (PU) and undertook mechanical and microscopic characterizations. PU-based PPM samples with varying aggregate sizes were produced and examined to test their compressive strength and water permeability. Furthermore, X-ray micro-computed tomography (micro-CT) was implemented to analyze the samples’ pore and tortuosity characteristics. Through the micro-CT analysis, the morphological characteristics of PPM’s internal structures were identified and quantitively analyzed the correlations between the pore size distribution, connectivity, and tortuosity within the samples. Finally, the microstructures derived from micro-CT were generated as a finite element model and also numerically determined the stress distribution generated inside.

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Section: Introductionmentioning

confidence: 99%