早龄期碳化对回弹法检测混凝土强度的影响

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中图分类号：TU755.7 文献标志码：A 文章编号：1003-5168（2025）19-0078-04

DOI：10.19968/j.cnki.hnkj.1003-5168.2025.19.015

The Influence of Early-Age Carbonation on the Rebound Method for Testing Concrete Strength

MENG Linchao （Neixiang County HighwayDevelopment Center，Nanyang 474350， China）

Abstract： [Purposes] To analyze the effect of early-age carbonation on the rebound method for testing concrete strength， three actual underground concrete structural components were selected for strength testing.[Methods] By comparing the rebound compressive strength and the cube compressive strength of concrete specimens with diffrent ages and strength grades，the influence of early-age carbonation on the test results of the rebound method was analyzed.[Findings] The experimental results indicate that earlyage carbonation significantly affects the accuracy of the rebound method，especially within the age range of 7 to 14 days.As the age increases，differences are observed in the early-age strength development of concrete with diffrent strength grades; the strength development of high-strength grade concrete is more rapid in the early ages.[Conclusions] The research results provide a reference for concrete strength testing in practical engineering，especially regarding the influence of early-age carbonation on the rebound method， which helps to improve testing accuracy.

Keywords： early-age carbonation; rebound method; concrete strength; strength testing; accuracy

0 引言

混凝土作为建筑工程中最常用的材料之一，其强度是衡量结构安全性的关键指标。（剩余4433字）