Time-Dependent Degradation Mechanism of Basalt Fiber Reinforced Polymer (BFRP) in a Low-Alkalinity Environment.

Weiwen Li, Murong Zou, Meilin He, Wanye Li, Peng Wang, Yihong Tang

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Article in Materials (Basel, Switzerland), 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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6 authors.

Weiwen LiGuangdong Provincial Key Laboratory of Durability for Marine Civil Engineering, Shenzhen University, Shenzhen 518060, China.ORCID 0000-0001-9533-6575

Murong ZouGuangdong Provincial Key Laboratory of Durability for Marine Civil Engineering, Shenzhen University, Shenzhen 518060, China.

Meilin HeGuangdong Provincial Key Laboratory of Durability for Marine Civil Engineering, Shenzhen University, Shenzhen 518060, China.

Wanye LiGuangdong Provincial Key Laboratory of Durability for Marine Civil Engineering, Shenzhen University, Shenzhen 518060, China.

Peng WangGuangdong Provincial Key Laboratory of Durability for Marine Civil Engineering, Shenzhen University, Shenzhen 518060, China.ORCID 0000-0002-2234-6892

Yihong TangDepartment of Civil and Environmental Engineering, The Hong Kong University of Science and Technology, Hong Kong, China.

Funding

Guangdong Basic and Applied Basic Research Foundation 2024A1515012528Shenzhen Science and Technology Innovation Commission 20231122212907001Shenzhen University 868-000001032148Start-up Project for 'High-end and Shortage' Talents (Category C) in Shenzhen 827-000945

6 · The paper itself

Abstract

Basalt fiber reinforced polymer (BFRP) has been utilized as a corrosion-resistant substitute for steel rebar in concrete structures. However, embedded BFRP rebars may degrade over time within the alkaline concrete pore solution. While extensive literature has scrutinized BFRP degradation under highly alkaline conditions (e.g., pH~13 in normal concrete), comparatively few studies have addressed its behavior under lower alkalinity (e.g., pH~11-12 in carbonated/green concrete). To address this issue, this study systematically investigates the degradation mechanism of BFRP rebars under coupled factors of pH (7, 11, 12, and 13), temperature (23, 40, and 60 °C), and aging time (30, 60, and 90 days). Research outcomes indicate that a decrease in pH from 13 to 11 at 23 °C results in a reduction in diffusion coefficient from 7.071 × 10

Indexed as

basalt fiber reinforced polymer (BFRP)diffusion coefficientdurabilityexposure pHmicroscopic characteristics

Identifiers

PMID40942596

DOI10.3390/ma18174170

PMCPMC12430627

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