Tensile Properties of Concrete with Irregular Aggregate Shapes

DOI

10.2991/978-94-6463-449-5_10How to use a DOI?

Keywords

Concrete; meso-numerical simulation; irregular aggregate; uniaxial tension

Abstract

Concrete is an important heterogeneous material used in engineering structures and infrastructure projects. Studying its mechanical properties and failure mechanism from meso-scale could provide supplementary insights for experimental research. In this study, the geometric concrete model of three aggregate types—pebble, gravel, and convex polygon—is established via MATLAB aggregate deformation program. Subsequently, the model is imported into the ABAQUS software to numerically simulate the failure mode and macro-mechanical properties of concrete specimens under uniaxial tensile conditions. The results show that the aggregate shape significantly affects the tensile strength and failure mode of concrete. The tensile strength and elastic modulus of the gravel aggregate concrete specimens were 1.9% and 5.7% higher than those of the convex polygonal aggregate concrete specimens. Moreover, the shape of the aggregate affects the expansion path of the cracks. Utilizing a meso-numerical model with irregular aggregates not only better approximates the actual geometric shape but also produces numerical simulation results that closely align with real-world conditions.

Copyright

© 2024 The Author(s)

Open Access

Open Access This chapter is licensed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International License (http://creativecommons.org/licenses/by-nc/4.0/), which permits any noncommercial use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license and indicate if changes were made.

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TY  - CONF
AU  - Lei Tian
AU  - Yawei Li
PY  - 2024
DA  - 2024/06/30
TI  - Tensile Properties of Concrete with Irregular Aggregate Shapes
BT  - Proceedings of the 2024 8th International Conference on Civil Architecture and Structural Engineering (ICCASE 2024)
PB  - Atlantis Press
SP  - 105
EP  - 112
SN  - 2589-4943
UR  - https://doi.org/10.2991/978-94-6463-449-5_10
DO  - 10.2991/978-94-6463-449-5_10
ID  - Tian2024
ER  -