半刚性基层材料强度快速测定方法的研究

A Study on Quick Test for the Materials on Semi-Rigid B(?)se

半刚性基层材料的强度随龄期而发展,且不同的结合料强度发展规律不同,而路面设计规范却要求以龄期三个月、半年甚至一年的强度作为设计标准,这在技术上就成为难题。本文提出了温度-时间换算公式,经检验,证明合理,并依此可绘成该材料的强度发展曲线,供使用,解决了设计中的一大难题,且为施工质量控制和工程质量检验提供了一种快速测定的方法。

The strength of the semi-rigid base materials increases with their age, and the strength growing regulations of different binding materials are not the same. It is a problem in technique that the design criteria required for pavement design standard are the strengths in 3, 6 and even 12 months of the age of the materials. This problem can be solved with a temperature-time conversion presented in this paper which is proved reasonable by tests. A quick approach is also provided for controlling the engineering quality of pavement construction and investigation.