Quasi-Static and Dynamic Interfacial Bond Performance Between Ultra-Early-Strength Unsaturated Polyester Polymer Concrete and Ordinary Portland Concrete Under Flexural Loadings.

Wanhui Feng, Ruihui Lu, Jingxuan Ma, Yi Zhou, Jinfeng Xu, Yuxuan Guan, Shizhe Chen, Song Li

Abstract read

In one paragraph

Article in Polymers, 2026. 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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5 · Who and what money

Authors and funding

8 authors.

Wanhui FengCollege of Urban and Rural Construction, Zhongkai University of Agriculture and Engineering, Guangzhou 510225, China.

Ruihui LuCollege of Urban and Rural Construction, Zhongkai University of Agriculture and Engineering, Guangzhou 510225, China.

Jingxuan MaCollege of Urban and Rural Construction, Zhongkai University of Agriculture and Engineering, Guangzhou 510225, China.

Yi ZhouCollege of Urban and Rural Construction, Zhongkai University of Agriculture and Engineering, Guangzhou 510225, China.

Jinfeng XuCollege of Urban and Rural Construction, Zhongkai University of Agriculture and Engineering, Guangzhou 510225, China.

Yuxuan GuanCollege of Urban and Rural Construction, Zhongkai University of Agriculture and Engineering, Guangzhou 510225, China.

Shizhe ChenCollege of Urban and Rural Construction, Zhongkai University of Agriculture and Engineering, Guangzhou 510225, China.

Song LiCollege of Urban and Rural Construction, Zhongkai University of Agriculture and Engineering, Guangzhou 510225, China.ORCID 0000-0001-7538-7877

Funding

Department of Science and Technology of Guangdong Province 2023A1515010870; 2022A1515010008

6 · The paper itself

Abstract

Unsaturated polyester polymer concrete (UPPC) is a promising rapid repair material for pavement engineering, while the age-dependent and rate-dependent bonding behaviors between UPPC and ordinary Portland concrete (OPC) substrate remains poorly understood, restricting its application in heavy-traffic scenarios. This study systematically investigates the quasi-static and dynamic bond performance of the UPPC-OPC interface at four curing ages (1 d, 3 d, 7 d, 28 d) under flexural loads. Quasi-static three-point bending tests show that the 28 d interfacial bond strength reaches 4.62 MPa, 97% higher than that of the OPC-OPC control group. Dynamic flexural tests via a 100 mm diameter split Hopkinson pressure bar reveal the strain-rate effect of the dynamic increase factor (DIF). DIF decreases below 1.0 at low strain rates (<10 s

Indexed as

bonding strengthflexural propertiesrepair materialsstrain-rate effectunsaturated polyester resin concrete

Identifiers

PMID42737153

DOI10.3390/polym18172144

PMCPMC13567917

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