The structure forms and the construction craft of unbound gradedaggregatebase are analysed. It will be of some use in unbound graded base which are used for base of road.
深入分析了级配碎石基层的路面结构形式和施工工艺，对级配碎石广泛应用于路面基层具有一定的指导意义。
2
Through a great number of Pu-Nan experiment datas, the pater put forward to the mixture design method, requirement of aggregate, gradation of mixture for dense gradedaggregatebase.