Pervious concrete and porous asphalt are not considered open grid as they are considered bounded materials.
透水混凝土和多孔沥青不被认为是开放式网格，而是有边界材料。
A mix proportion design method of pervious concrete is provided, of which total void ratio is the first design parameter and compressive strength is the second one.
根据透水混凝土的结构特征，对其配制参数和配合比计算方法进行了研究，提出了以总孔隙率为第一设计参数，抗压强度为第二参数的配合比设计方法。
Pervious cement pavement concrete is of good perviousness, it can release the problems of highway seeper and urban environment, so it is a sort of environmental protection concrete.
透水水泥路面混凝土具有良好的透水性，能够缓解公路积水和城市环境问题，是一种环保型的混凝土。
The pervious asphalt concrete is the paving material more advanced internationally, and just used locally.
透水沥青混凝土是国际上较为先进的筑路材料，国内刚开始采用。
When lowering the requirement of water permeability, the pervious bricks would meet the requirement of concrete pavement brick standard(JC/T 466-2000).
降低透水能力的要求，则其强度可以满足JC/T 466-2000混凝土路面砖标准的要求。
For deep and pervious soil foundation under earth-rockfill dam, a concrete diaphragm wall must be provided to control seepage.
建造在透水的深覆盖层上的土石坝，坝基常设有混凝土防渗墙，如何正确地确定防渗墙的应力是坝工设计的难点。
For deep and pervious soil foundation under earth-rockfill dam, a concrete diaphragm wall must be provided to control seepage.
建造在透水的深覆盖层上的土石坝，坝基常设有混凝土防渗墙，如何正确地确定防渗墙的应力是坝工设计的难点。
应用推荐