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- water permeability concrete 透水性混凝土
- Rocks have better water permeability than sand. 岩石的透水性不如沙土。
- Plant small grass and bush using the feature of concrete air gap such as air permeability and water permeability to penetrate plant required nutrition and to grow plant root system. 利用混凝土空隙部位的透气、透水等性能,渗透植物所需营养,生长植物根系的特点种植小草、低的灌木等植物。
- The groins that water permeability is greater than 60 percent could lessen more than 0.8 m deep erosion. 低丁坝的保滩护塘机理主要体现在三个方面：即对涌潮潮头的阻挡作用，对涌潮快水的减冲作用和在落潮期回流淤积作用。
- The paper analysed a few ways of commonly testing water permeability,and studied the influence and control of pressure rate to the result of test. 文章对几种常见渗水性能测试方法进行分析研究,并对渗水测试中升压速率对试验结果的影响和控制进行研究。
- This paper studied the effects of the filler-asphalt ratio and the gradation on mechanical properties and water permeability of OGFC. 试验研究了粉胶比和集料级配对开级配沥青混凝土(OGFC)力学性能和透水性的影响。
- The soft soil is featured by big viscosity, bad water permeability, big water content, low bearing capacity, big settlement and complex soil layers. 软土地基的土质具有粘性大，透水性差，含水量大，承载力低，沉降量大，土层结构复杂等特点。
- And it figures out the relationships between the chloridion permeability coefficient, water permeability coefficient and air permeability coefficient. PP纤维可抑制爆裂,但受火后抗渗性损失很大。
- Water Permeability of Porous Concrete and Its Measuring Method 大孔混凝土的透水性及其测定方法
- In this paper,erosion and siltation performance of low sheet-pile groins with different water permeability under tidal bore is studied by means of movable-bed model, and mechanism of flat-maintenance and dyke-protection is discussed. 本文在水槽中用动床模型试验手段研究了涌潮条件下不同透水率的排桩式护塘低丁坝群的水力学冲淤特性 ,并探讨了低丁坝的护滩保塘机理。
- The main performances of band drain include flow capacity, tensile strength, longitudinal and transverse tensile strength of filter fabric, longitudinal and transverse tear strength, water permeability and effective opening size etc. 反映排水板性能的主要指标包括：通水量，抗拉强度，滤膜纵横向抗拉强度，纵横向抗撕裂强度，渗透性和有效孔径等。
- Spud into wells, into 320-mm diameter stainless steel pipes, through certification water permeability soil sampling in the establishment of water treatment and water permeability better stratum. 开钻成井后，放入直径320毫米的不锈钢管，通过土壤取样验证透水性，在透水性较好的地层设置滤水管。
- Silk fibroin films by adding polyhydric alcohol or exerting reinforced material were prepared, and the film properties were measured such as strenth, elongation, solubility, water permeability etc. 用聚醚型环氧树脂作为制备丝素膜时的交联剂，探讨了环氧树脂的添加量、分子量对丝素膜结构和性能的影响。指出随着环氧树脂添加量的增加，丝素膜的热水溶失率、拉伸初始模量减小，断裂伸长率、拉伸弹性提高；
- Results indicated that furrowing can make the soil of the ridge looser and soil porosity larger, so favoring the aeration and water permeability of soil, enlarging the storage capacity of soil water. 结果表明，起垄可使垄背土壤变得疏松，孔隙度增大，有利于土壤通气透水，增加土壤水库容。
- Within six months of pouring Chicago's first permeable concrete alley, the cost of the new concrete had dropped more than sixty percent. 在浇注完芝加哥的第一条可渗透的混凝土小径的六个月之内，对新混凝土的花费已经降了百分之六十多。
- Main ly is suitable for the ground water deeper,the ground water and the soil content is lower,the irrigation water quality is better,most soil layer water permeability moderat area. 主要适用于地下水较深，地下水及土壤含盐量较低，灌溉水质较好，湿润土层透水性适中的地区。
- Water permeability coefficient and alternating current conductivity of concrete 混凝土渗透系数与交流电导相关性的试验研究
- It presents satisfactory cementitious performance and high volume stability.This binder can be used to produce novel building products or as expansion agent to prepare very low permeable concrete. 氟石膏粉煤灰胶结材可用于制造新型墙体制品，也可作为微膨胀剂配制高抗渗性混凝土。
- coefficient of water permeability 渗水系数
- The clear water mirrored the blue sky. 清澈的水中映出蔚蓝的天空。
