The water absorption and impermeability of mortar has close correlation with pore structure.
砂浆的吸水性和不透水性与其孔结构密切相关,研究了不同品种的憎水剂和消泡剂种类和掺量对聚合物砂浆吸水率、软化系数、不透水性和孔结构的影响,结果表明,硬脂酸类憎水剂(C)-有机硅类消泡剂(B)与成品聚合物砂浆的配伍效果最好,砂浆的吸水率降低、不透水性和软化系数提高。
Test methods for asphalt waterproof roll roofing- Water impermeability of asphalt
GB/T328.3-1989沥青防水卷材试验方法不透水性
impermeable barrier
不可渗透层;不渗水层;不渗透遮挡层;不透层;不透水隔层
water-tight case
不透水外壳, 耐水外壳
This adversely affects water movement, permeability, and aeration.
这对水分移动，渗透度及通气性有不利影响。
Poor drainage causes deficient soil aeration and death of the roots.
排水不良能减低土壤的透气性，使根死亡。
An aquitard stores water and transmits enough water to be regionally significant but not enough to supply individual wells.
弱透水层存水且区域性地传导大量水，但不能充分供给每个井。
closed so tightly as to be airtight or watertight.
关闭的很紧的，不透气的或不透水的。
Impervious to or unaffected by water.
防水的不透水或不为水所影响的
An aquiclude stores water but does not transmit significant amounts.
一个不透水层只存水但不能大量导水。
of such close construction as to be impermeable.
结构紧密以至不透水的。
hearting concrete
不透水的心墙混凝土
A duck's back sheds water.
鸭子的背部不透水。
The external layer of the skin is relatively impermeable to water.
皮肤的外层不透水。
water washable dye penetrant testing method
水洗性着色渗透探伤法
water washable fluorescent penetrate testing method
水洗性荧光渗透探伤法
Deformation and Chloride Ion Penetration Characters in Different Fly Ash Replacement of Concrete;
不同水灰比混凝土的变形性能与氯离子渗透特性研究
Study on Water Conversation with Infiltration Capacity of Different Types of Sites in the North Side of Liupan Mountain
六盘山北侧不同立地土壤的蓄水性能和渗透性研究
Permeability performance of controlled permeable formwork liner influenced by geometric parameters
透水模板布几何参数对透排水性能的影响