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1957年山东省公路部门在济南至邯郸的公路上,曾试铺了砾石、砂土、炉炼粘土、轨道式(砾石)、砖屑、粘土封面、粘土砂封面、粘土保护层、砂封面等9种类型的磨耗层和保护层,结果以砖屑磨耗层在平原地区较为适宜,特作介绍如下: 一、概况砖屑磨耗层是采用了砖屑和粘土进行适当的配合,按照一定的操作方法铺筑的。砖屑是利用沿路村庄废弃的碎砖破瓦进行加工的(打碎至2O公厘以下,2公厘以上)。在试验中,粘土塑性指数采用了13、20、24、25四种,分别配合铺筑,以作比较。
In 1957, on the highway between Jinan and Handan, the highway department of Shandong Province had tried gravel, sand, furnace clay, orbital (gravel), brick chips, clay cover, clay sand cover, clay cover, sand cover, etc. 9 types of wear layer and the protective layer, the results of the wear layer of brick debris in the plains is more appropriate, special make the following: First, the overview of the brick debris layer is the use of brick shavings and clay for proper coordination, according to certain operations Method of paving. Brick chips are processed using broken brick broken tiles that have been discarded in villages along the road (smashing to less than 20 mm and over 2 mm). In the test, clay plastic index used 13,20,24,25 four, respectively, paving, for comparison.