Research on the uniaxial tensile behavior and empirical constitutive model of structural fiber-reinforced recycled concrete

Research Overview

According to the research included in Volume 133 of the Journal of Building Engineering (published on December 1, 2026), the author Zhiyi Tang、Huayi Wang、Bingyan Wei、Xiongjun He、Ming Zhou、Wenrui Yang A study was conducted on the uniaxial tensile behavior of structural fiber-reinforced recycled concrete, and an empirical constitutive model was established. This study focuses on the mechanical response of materials under uniaxial tensile conditions and belongs to the category of building material properties and testing.

Research content and focus

From the title and source information, the two main lines of research are “uniaxial tensile behavior” and “empirical constitutive modeling”.

. The former refers to the performance characterization of fiber-reinforced recycled concrete under tensile load, while the latter attempts to describe its stress-strain relationship using empirical formulas, providing input for engineering design and numerical analysis. Due to the addition of recycled aggregates, the mechanical behavior of recycled concrete differs from that of ordinary concrete, and the introduction of fibers further changes its tensile properties. Therefore, the establishment of a constitutive model has practical significance for material design and quality control.

Association with building and home decoration materials

Recycled concrete belongs to the direction of concrete modification in building and home decoration materials.

. The research involves fiber reinforcement and tensile properties, which are directly related to the durability and safety of building components under stress. Although the source does not involve polymer additives, its focus on material properties and testing methods is consistent with the overall requirements for formulation, processing, and performance evaluation in the field of building materials.

Significance for the polymer additive industry

In the field of building and home decoration materials, concrete modification, PVC profiles and pipes, waterproofing and building coatings, insulation and flame retardancy, sealants, and asphalt modification all rely on additive systems to balance processability and long-term performance.

. Taking PVC profiles as an example, the weather stability under outdoor exposure conditions requires the synergistic combination of antioxidants and light stabilizers to suppress degradation during processing and use; The requirement for weather resistance and aging of building materials during long-term service also promotes the development of a more stable system for the formulation of additives. Although the research on fiber-reinforced recycled concrete does not directly involve additives, its focus on tensile behavior and constitutive relationship suggests the need for more systematic testing and modeling methods for evaluating building material properties. This has reference significance for the application evaluation of additives in concrete modification, sealing, and protection systems.

Information boundary to note

The source only provides title, journal, volume, publication date, and author information, and does not disclose specific experimental data, fiber type and dosage, recycled aggregate ratio, constitutive model form, and conclusion.

. Therefore, this article does not make any inferences about the research results, and the relevant data should be based on the full text of the paper.

Information source:Uniaxial tensile behavior and empirical constitutive modeling of structural fiber-reinforced recycled concrete， Organized by Herun Chemical.