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1959年在党的领导下,山东省公路路面磨耗层的科学研究工作已初步获得了一定的成果,在磨耗层的选料、配料方面,使用砖屑铺筑试验成功,解决了占我省总面积约40％不产砂土地区的路面养护的关键问题。对砖屑磨耗层技术指标初步经验为:(1)厚度一般以25～30毫米为宜。(2)砖屑最大粒径应为厚度的0.8倍或O.9倍。2毫米以下细料应筛除,一般粒径为20～2毫米,因易细化较粗些好处多,并有适当的级配性。(3)粘土塑指12以上均可使用,其掺加量根据压
In 1959 under the leadership of the party, Shandong province road pavement abrasion layer of scientific research has been initially achieved some results in the wear layer of choice of materials, ingredients, the use of brick paving test successfully solved the total province of our province About 40% of the key issues of pavement maintenance in sandy soil areas. The initial experience of the technical indicators of the wear layer of brick debris: (1) the thickness is generally 25 ~ 30 mm is appropriate. (2) The maximum particle size of brick chips should be 0.8 times the thickness or 0.9 times the thickness. Fine material below 2 mm should be sieved, the general size of 20 to 2 mm, due to easy to refine the more of the advantages of more coarse, and the appropriate gradation. (3) Clay clay refers to more than 12 can be used, the amount of mixing according to pressure