摘要
;半刚性基层的温缩裂缝会导致路面产生反射裂缝,严重影响路面结构的性能。不同类型的半刚性基层,若组成材料不同,则温缩性能也存在差异。通过对四种不同的半刚性基层材料90d的温缩系数进行量测和分析,结果表明:水泥用量是影响半刚性基层温缩性能的主要因素,四种材料抗温缩性能优劣排序为:二灰碎石>三灰碎石>水泥粉煤灰稳定碎石>水泥稳定碎石。
The temperature shrinkage crack of semi-rigid base will cause reflection crack in pavement and affect the performance of pavement structure seriously.The temperature shrinkage properties of different semi-rigid bases differ from each other because of material composition.By measuring and analyzing the 90 day temperature shrinkage coefficient of four semi-rigid base materials,the result shows that the content of cement is the main influencing factor of temperature shrinkage property of semi-rigid base,and the preferential order of these materials is that lime-fly ash macadamlime-cement-fly ash macadamcement and fly ash stabilized macadamcement stabilized macadam.
出处
《交通标准化》
2011年第7期43-46,共4页
Communications Standardization
关键词
半刚性基层
温缩裂缝
温缩系数
semi-rigid base
temperature shrinkage crack
temperature shrinkage coefficient
