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- The calculation results are compared with the surface parameter from the current erosion-dilation techniques, and verified by the traditional air void ratio of uncompacted coarse aggregates. 将其计算结果与目前侵蚀膨胀法的表面参数指标进行了对比分析,并采用粗集料松装空隙率对粗糙度与分形维数2个图像指标进行了验证。
- zero air void ratio 饱和孔隙比
- air void ratio 空气孔隙比
- So the void ratio method is feasible in compaction control of subbase. 因此,路基压实用空隙率法控制是切实可行的。
- Soil-rock-mixture is a typical porous medium, and its seepage is closely related to the particle-size, void ratio and particle shape. 土石混合体属于典型的多孔介质,其渗透特性与颗粒的大小、孔隙比及颗粒形状关系密切。
- Tests show that clay in fine aggregate affected the water stability of asphalt mixture markedly; the permeable critical air void is 7.5? 试验表明;集料泥土污染对沥青混合料水稳性影响显著;沥青混合料的渗水临界空隙率为7.;5%25。
- Many factors have influence on permeability of cohesionless coarse-grained soil,in which void ratio is the major one. 影响无粘性粗颗粒土渗透性的因素有很多,其中孔隙比是其中的主要因素。
- Pavement Quality Indicator (PQI),a nondestructive monitor device,is introduced which canobtain a great deal of air void data of asphalt pavement fast. 沥青路面质量指示仪(PQI)是一种无损检测设备,可以快速、大量地获得路面空隙率数据。
- As for lengthwise surface void ratio, the silk fiber treated by plasm is more obvious than untreated silk fibers. 对于纤维的纵向表面空隙率,等离子体处理丝纤维明显比未处理原丝纤维大。
- The initial void ratio decreased with the embedding depth of MSW due to au increase in overburden pressure. 由于上覆压力作用,垃圾的初始孔隙比随填埋深度增加而降低;
- Effects of high-frequency vibration on air void parameters of air-entrained concrete with four different types of air entraining agents (AEA) were studied. 摘要研究了高频振捣对不同品种引气混凝土气泡参数的影响。
- In addition,air void parameters for BNS concrete and PCE concrete and combinations of PCE with AVCs were tested to verify which one takes advantages to resi... 另外,对混凝土分别单掺萘系减水剂(BNS)和聚羧酸系减水剂(PCE),以及混掺AVC与PCE后的孔隙系统质量的优劣情况,本文也作了比较。
- Research the rebound modulu of low liquid limit silt subbase under different control standards(void ratio and degree of compaction). 研究低液限粉性土压实不同控制标准(空隙率与压实度)的路基回弹模量。
- In this regard,several air entraining agents(AEAs) and air void controllers(AVCs) were investigated with respect to their effects to improve air void parameters in the paper. 为此,本文研究了几种引气剂(A EA)和孔隙质量控制剂(A VC)在改善硬化混凝土气泡参数时所起的作用。
- These parameters reflect the comprehensive effect of initial and variation of void ratio, compressibility and permeability along the depth. 此类参数为随有效应力和土层深度变化的量,体现了软黏土初始孔隙比、压缩性、渗透性及其沿深度变化等因素的综合影响。
- This paper analyzes and researches the possibility of simplifying the control conditions of void ratio and saturation ratio in the freeze-thaw splitting test. 针对冻融劈裂试验简化空隙率与饱水率的控制条件进行了分析研究,表明冻融劈裂试验的简化两项控制是不合理的。
- For charges with defect, the more the void ratio,the higher the value,indicating that a higher quality charge can improve the safety of overload resistance of charge,the speci... 装药中保持一定的孔隙率可以提高装药的抗过载能力,从而说明了分步压装工艺装药密度分布对装药的抗过载安全性是有利的。
- All kinds of factors influencing the compressibility of polluted soil were analyzed, including grain-size distribution, plasticity index, moisture content and void ratio. 并对影响酸碱污染土压缩性的各种因素进行分析研究,包括土污染前后的粒度分析、塑性指数、含水率分析以及孔隙比。
- The results indicate that the three important elements which influence traffic noise reduction of asphalt rubber pavement are AC content, aggregate grades and ratio of air voids. 研究结果表明,影响橡胶粉沥青混凝土路面降噪性能的主要因素有3个:橡胶粉的掺入量、骨料配合比和空隙率。
- In addition,air void parameters for BNS concrete and PCE concrete and combinations of PCE with AVCs were tested to verify which one takes advantages to resist to cyclic freezing and thawing. 另外,对混凝土分别单掺萘系减水剂(BNS)和聚羧酸系减水剂(PCE),以及混掺AV C与PCE后的孔隙系统质量的优劣情况,本文也作了比较。