Work

Optimizing fiber-reinforced flexible concrete blankets: A study on basalt fiber effects on strength properties

Year: 2024

Type: article

Abstract: Flexible concrete blankets (FCB) are valued for convenient construction and rapid hardening but are hindered by low tensile and flexural strengths . This study examines the enhancement of FCB by incorporating basalt fibers into the cement matrix , with a focus on improving compressive, flexural, and tensile strengths . A series of tests evaluated the apparent density, setting time, and strength properties of the fiber-reinforced cement matrix across various fiber lengths , fiber contents, and water-cement ratios. Results show that increasing fiber length and content reduces apparent density and extends setting time. Basalt fiber addition effectively enhances compressive and flexural strengths , although excessive fiber length, content, and water-cement ratios lead to reduced performance. The optimal configuration (3 mm fiber length, 0.1 % fiber content, and a 0.38 water-cement ratio) yields the best mechanical properties. Orthogonal analysis indicates that compressive strength is most influenced by fiber content, followed by fiber length and water-cement ratio, while flexural strength is primarily affected by fiber length. Additionally, FCB with surface-pasted fiber cloth exhibits higher tensile strength than mixtures with dispersed fibers.

Source: Construction and Building Materials

DOI: 10.1016/j.conbuildmat.2024.139272

Authors: Ping Hu, Xianghua Song, Yan Liu, Ziming Gao, Qinru Wu, Le Zhang

Institutions: University of Jinan, Heilongjiang University, China University of Petroleum, East China

Language: English

Topic: Innovative concrete reinforcement materials

Subfield: Civil and Structural Engineering

Field: Engineering

Domain: Physical Sciences

Open Access status: hybrid

Estimated APC paid: $4,080

Funders: National Natural Science Foundation of China, Natural Science Foundation of Shandong Province