煤矸石作为煤炭生产中产生的副产品,其堆积过量会对人们的生活环境产生严重的影响,但是大量的煤矸石经过处理可以将其作为公路路基的填充材料,不仅能够废物利用,还可以夯实路基,因此这种材料在高速公路建设中被广泛的使用。本文就煤矸石的性能及其在公路工程施工中的应用情况进行分析。 Coal gangue, as a by-product of coal production, can cause serious impact on people’s living environment. However, a large amount of coal gangue can be treated as filling material for roadbed, which can not only utilize waste but also reinforce subgrade , So this kind of material is widely used in highway construction. This article analyzes the performance of coal gangue and its application in highway construction.