Evaluation of alkali-silica reaction damage in concrete using linear and nonlinear resonance techniques

被引：16

作者：

Malone, Clayton ^{[1
]}

Zhu, Jinying ^{[1
]}

Hu, Jiong ^{[1
]}

Snyder, April ^{[2
]}

Giannini, Eric ^{[2
]}

机构：

[1] Univ Nebraska Lincoln, Dept Civil & Environm Engn, 1110 S 67th St, Omaha, NE 68182 USA

[2] RJ Lee Grp, 350 Hochberg Rd, Monroeville, PA 15146 USA

来源：

CONSTRUCTION AND BUILDING MATERIALS | 2021年 / 303卷

关键词：

Nonlinear resonance; NDT; Alkali-silica reaction (ASR); Concrete; ELASTIC-WAVE SPECTROSCOPY; DISCERN MATERIAL DAMAGE; NEWS TECHNIQUES; QUANTIFICATION; DENSITY;

D O I：

10.1016/j.conbuildmat.2021.124538

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

In this study, the initiation and development of alkali-silica reaction (ASR) in concrete prisms containing reactive coarse (RCA) and reactive fine (RFA) aggregates were monitored over one year using linear and nonlinear resonance techniques. Although the linear resonance test could detect initiation and development of ASR damage in RCA specimens, it failed in the RFA specimens. Petrographic analysis confirmed the presence of early-stage ASR damage and the presence of different microcracking patterns in the RFA and RCA specimens, which may explain differences in the linear resonance data. For both RCA and RFA specimens, the nonlinear resonance test results were able to detect the initiation of ASR damage and showed a strong correlation with the ASR expansion for all specimens from different mix designs. The results demonstrate the high sensitivity of the nonlinear resonance test and its potential for quantitative evaluation of the ASR damage state of concrete specimens without a baseline measurement.

引用

页数：9

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