Work

Research on the Uniaxial Compression Performance of Basalt Fiber-reinforced Recycled Aggregate Concrete

Year: 2025

Type: article

Abstract: This study improves the mechanical properties of recycled concrete by adding basalt fibers, thereby promoting the widespread application of recycled concrete in engineering. The research results indicate that basalt fibers can increase the cube compressive strength of recycled concrete, the optimal dosage of basalt fibers is 0.3 %, and an increase in compressive strength can increase the compressive strength by 7.96 %. The presence of basalt fibers can form a three-dimensional disordered distribution support system inside recycled concrete, limiting the generation and propagation of microcracks under uniaxial compression, maintaining a certain degree of integrity during the failure process of recycled concrete, and making the descending section of the stress‒strain curve relatively stable. With increasing basalt fiber content, the peak stress of recycled concrete under uniaxial compression tends to first increase but then decrease, whereas the peak strain of recycled concrete under uniaxial compression tends to increase. A calculation model for the compressive strength, peak stress, and peak strain of basalt fiber‒reinforced recycled concrete is constructed. The strengthening mechanism of basalt fibers on the uniaxial compression performance of recycled concrete is discussed.

Source: Materials Science

DOI: 10.5755/j02.ms.41293

Authors: Shu SUN, Hsingwei TAI, Zhenyu TAN, Chiachen WEI

Institutions: Taizhou Polytechnic College, Huaqiao University, Krirk University, National Pingtung University of Science and Technology

Language: English

Topic: Recycled Aggregate Concrete Performance

Subfield: Building and Construction

Field: Engineering

Domain: Physical Sciences

SDG: Responsible consumption and production

Open Access status: gold

Estimated APC paid: $539