Axial Compression Performance of Engineered Cementitious Composite (ECC) Strengthened Concrete Columns: a State-of-the-Art Review

doi:10.16552/j.cnki.issn1001-1625.2025.0626

Abstract

Abstract: To enhance the mechanical properties and durability of concrete columns, a systematic investigation was conducted on the optimization methods and influencing mechanisms of engineered cementitious composite (ECC) strengthening technology. Based on a comprehensive review of recent research progress in ECC, the fiber reinforcement mechanisms have been explained from both microstructural and macro-mechanical perspectives. Through comparative analysis of domestic and international research achievements, the influences of critical factors including concrete substrate strength, ECC strength, types of interface agents, and interface roughness on the bonding performance between normal concrete and ECC strengthening layers were summarized. The failure modes, peak load, and ductility of ECC strengthened concrete columns were analyzed with respect to key parameters, including column cross-sectional dimensions, concrete substrate strength, ECC layer thickness, and stirrup spacing. Furthermore, a comparative evaluation of existing typical analytical models was performed, providing references for engineering design and theoretical analysis.

Key words: ECC, concrete column, axial compression performance, strengthening, bonding performance

CLC Number:

TU528.57

LANG Wenli, LIANG Meng, XU Fenghui, WANG Peng, XIE Qun. Axial Compression Performance of Engineered Cementitious Composite (ECC) Strengthened Concrete Columns: a State-of-the-Art Review[J]. BULLETIN OF THE CHINESE CERAMIC SOCIETY, 2025, 44(11): 3947-3963.

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