中文摘要：

在工程实践中，混凝土结构由于各种原因提前失稳的现象屡见不鲜，无损检测对当代各种工程建设中安全评价具有重要意义，而混凝土声学特性越来越广泛地应用于无损检测技术中。阐述了混凝土材料的声学特性研究现状，分析评价了其存在的不足和应用发展。

英文摘要：

Due to various causes, the early failure phenomena of concrete structure have happened frequently during engineering. Nondestructive testing plays an important role in the engineering construction safety assessment, and the concrete acoustic characteris- tics have been widely used in nondestructive testing. This paper illustrates the research status of conerere materials＇acoustic characteristics, analyzes and evaluates its problems and points out its development trend.