Experimental Study on The Mechanical Properties of High Territory-Steel Fiber-Rubber Concrete Under Multi-Component Coupling Effects

Jinying Wang; Yuze Tian; Haocheng Liu; Junyi Bian; Chunyang Li; Zihao Liu; Dongbo Li

doi:10.6911/WSRJ.202602_12(2).0007

Authors

Jinying Wang
Yuze Tian
Haocheng Liu
Junyi Bian
Chunyang Li
Zihao Liu
Dongbo Li

DOI:

https://doi.org/10.6911/WSRJ.202602_12(2).0007

Keywords:

High territory, Steel fiber, Rubber particles, Mechanical properties, Orthogonal experiment

Abstract

In this paper, the effects of multi-component coupled dosages on the compressive strength, splitting tensile strength, and flexural strength of concrete, a three-factor, three-level orthogonal experiment was employed, and the analysis of variance method was used to determine the primary and secondary order of the effects of materials on concrete properties. Results indicate that the single incorporation of rubber particles into traditional concrete optimizes impact resistance via elastic deformation but results in a significant reduction in strength. In contrast, high territory improves strength and durability by generating C-S-H gels through its pozzolanic activity, while steel fibers establish a three-dimensional supporting network that enhances crack resistance and toughness. The combined incorporation of high territory compensates for the strength loss by virtue of its filling effect and pozzolanic reaction, while steel fibers inhibit the propagation of micro-cracks at the rubber interface. SEM analysis results reveal that the hydration products of high territory–steel fiber-rubber concrete exhibit a smoother surface, fewer weak interfacial zones and better bonding between aggregates and cement mortar, which significantly improves the overall performance of the concrete.

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