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石灰稳定类基层在我国道路建筑中得到了广泛的应用,这类基层的设计方法亦日益受到人们的重视。由于这类基层在一定令期后,具有半刚性的特点,即较高的模量、较低的极限拉应变和抗弯强度。所以结构层的抗拉性能将是该类基层设计中的主要指标。寻求一种能表征这种指标的简易测定方法,无疑是十分必要的。它将有助于沟通理论计算与实际间的联系,有助于评定现有道路的使用性能和质量。
Lime-stabilized grassroots have been widely used in the road construction of our country, and the design methods of such grassroots are gaining more and more attention. Because of these types of grass-roots after a certain period of time, with semi-rigid characteristics, namely higher modulus, lower ultimate tensile strain and bending strength. Therefore, the tensile properties of the structural layer will be the main indicators of this type of grassroots design. It is undoubtedly necessary to seek a simple method to characterize this kind of index. It will help to bridge the gap between theoretical calculations and practice and will help to assess the performance and quality of existing roads.