水泥稳定碎石新型抗裂材料研究

Study on New Anti-Crack Materials in Cement-Stabilized Macadam

为提高半刚性基层沥青路面的长期使用性能,基层的裂缝控制是个关键。根据抗裂材料的特性和工程实践,提出了如何正确选择水泥稳定碎石抗裂材料,供设计和施工参考。并对掺膨胀剂和减缩剂水泥稳定碎石力学性能进行了研究,结果表明掺膨胀剂和减缩剂水泥稳定碎石具有良好的抗裂性能。

Crack control in base is crucial to improve the long-term performance of semi-rigid base asphalt pavement. Based on the feature of anti-crack materials and engineering practice, the paper proposes how to select accurately anti-crack materials of cement-stabilized macadam, which provides reference for design and construction. In addition, the mechanical properties of cement-stabilized macadam with expansive a-gent and shrinkage reducing admixture has been studied, which improved have excellent anti-crack performance.