对不同钢纤维体积率的混凝土复合材料在不同围压条件下进行受压试验。
The press tests of composite concrete materials with different volume ratio of steel fiber have been carried out under different confined pressures.
利用均匀设计设计试验,进行填隙碎石的固体体积率试验,确定最优值是78。
By using uniform design to design experiment, the experiment of solid volume rate of the material was proceeded, which determined the optimum value 78.
探讨了劈拉强度与抗压强度的关系、钢纤维体积率及钢纤维类型对劈拉变形性能的影响。
The relation between splitting tensile strength and compressive strength and the effects of steel fiber types and volume ratio on behavior of the deformation of split failure are discussed.
结果表明:混凝土轴拉初裂强度分别随钢纤维体积率的增大和混凝土强度等级的提高而增大。
It shows the axial tension initial cracking strength of concrete increases with the increasing of steel fiber volume ratio and enhancing of concrete strength grade separately.
在其它参数不变时为获得最大的冲蚀体积率则有一最佳的磨料重量比浓度和横移速度及靶距;
An. optimum specific concentration of abrasive by weight, traverse speed and target distance will get the highest volume removal rate while keeping up other parameters unchanged.
添加不同长径比、体积率钢纤维,获得最佳超高强度硅酸盐混凝土的增强、增韧与阻裂效应。
Add a different aspect ratio and volume ratio of steel fibers, in order to attain the best high strength Portland concrete reinforcing, toughening and crack resistance effect.
研究、讨论了聚丙烯纤维体积率与这种材料的断裂能、平均裂纹间距和平均裂纹宽度间的关系。
The relationship between the fracture energy and the cracking space and the cracking wide and the volume percentage of fiber is investigated and discussed.
经过计算,纤维体积率为0.8%的钢纤维混凝土能使混凝土结构裂缝的最大宽度降低32%。
Based on the standard computation formula of cracks, the maximum crack width of RC member with 0.8% steel fiber (by volume) is about 32% lower than that of RC member.
为了解决这一问题,引入空气体积率作为粉土压实的辅助控制标准,并建议提高现行路堤的压实度控制标准。
In order to solve this problem, volume ratio of air is used as an assistant criterion for the compaction of silt.
为了解决这一问题,引入空气体积率作为粉土压实的辅助控制标准,并建议提高现行路堤的压实度控制标准。
In order to solve this problem, volume ratio of air is used as an assistant criterion for the compaction of silt. And, it is sugg...
为考虑空气对水流流速的影响采用VOF方法追踪自由水面,并用施主—受主方法求解水体体积率控制方程。
Considering the influence of the air on the velocity of flow, Volume of Fluids (VOF) method is used to track the free surface.
将体积率为1%、2%、3%的微钢纤维掺入高性能混凝土的基体中,考察并分析钢纤维的体积率对高性能混凝土的抗压强度和抗弯性能的影响。
The effects of the different volume-ratios of the micro steel fiber, including 1%, 2%, 3%, are experimentally observed and analyzed on the compressive strength and bending performances.
结果表明:气泡是影响分选精度的重要因素,其体积分率的变化与床层密度波动密切相关。
The result shows that the bubble is an important factor influencing coal separation, and the variation of its volume fraction is closely related to the variation of density of ADMFB.
所用材料不合格。如砂、石、集料质量不合格;除此之外,大多数是因为水泥体积膨胀率太大(安定性严重不良)。
USES material not qualified. Such as sand, stone, aggregate quality unqualified; In addition, mostly because cement volume expansion rate is too large (stability serious adverse).
电阻率的测量方法是测量电阻,然后再考虑几何因素将其变换成表面电阻率或体积电阻率。
Resistivity is determined by measuring resistance, then converting to surface or volume resistivity by taking geometric considerations into account.
流动然后停止,而且如果地层有足够的渗透率,地层将会流动,以平衡测试器和地层体积。
Flow is then stopped, and if the formation has sufficient permeability, the formation will flow to equilibrate the tester with the bulk of the formation.
制得高强度耐火粘土砖的试验结果表明:浸渍处理后的试样,常温耐压强度均获得了不同程度的提高,体积密度增加,气孔率下降。
The result shows that the compressive strength at normal temperature of impregnated samples is raised in varying degree, their bulk density is increased and the porosity is decreased.
其特点是体积小、重量轻、使用方便、过滤面积大、堵塞率低、过滤速度快、无污染、热稳定性及化学稳定性好。
Features: small volume, light, easy to use, broad filtering area, low block rate, high filtering speed, no pollution, good heat stability and chemical stability.
可以恢复使用,体积小,反应迅速,降低产品的维修率。
Can be re-used, small size, rapid response and reduce the rate of repair of the Product.
小行星的体积越大,潜在灾难的规模就越大。行星的表面反射率——天文学家称为反照率——决定了它有多容易被探测到。
The bigger the asteroid, the greater the potential cataclysm. The reflectivity of the surface — what astronomers call albedo — tells how easily it can be detected.
测定了涂层抗拉强度、膨胀系数、一定条件下的磨损体积、气孔率等性能。
The properties of coatings. e. g. tensile strength, expansion coefficient, wear volume under given conditions and porosity, etc. were tested.
蒸发率随容器的设计和储存产品的体积而变化。
Rates of vaporization vary depending on the design of the container and the volume of stored product.
结果表明:空气弹簧的刚度不仅与其静平衡位置时的压力和容积有关,还与其有效面积变化率和体积变化率有关。
The results show that the stiffness is dependent not only on the pressure and volume at static balance, but also on the change rates of efficient area and volume.
本文提出单位体积极化率的概念,并用它作为非极性气体在水中溶解性大小的判据。
The concept of unit volume polarizability is suggested in this paper, it is regarded as a criterion for the solubility magnitude of nonpolar gas in the water.
岩石基质渗透系数和孔隙率通过体积应变进行更新。
The permeability coefficient and porosity of rock are updated by volumetric strain.
测定竹炭对碘、苯、甲醛等的吸附性能及竹炭体积电阻率,发现所用竹炭性能较好。
Meantime, absorption value of iodine, benzene and formaldehyde on bamboo charcoal and its volume electric resistance rate was determined.
模拟结果揭示了废塑料气力输送过程中废塑料颗粒速度、气体速度和颗粒体积分率沿管长的变化规律以及管径的改变对废塑料颗粒体积分率的分布和固气比的影响。
The results revealed the changing laws of the velocity of waste plastics particles and gas, the volume fraction of the waste plastics along the pipe range in the course of pneumatic conveying.
使用简便的方法制作了电极面积大、无死体积、分辨率高、检测限低的微型电导池;
A new kind of miniature conductivity cell was made with a clever and handy method, which has no dead volume and has large area of electrode, high resolution and sensitivity.
考察了硅微粉的种类及用量对环氧灌封材料的凝胶化时间、冲击强度、吸水率、体积电阻率的影响。
The influence of the kind and using level of silica powder on the gelation time, impact strength, water absorption and volume resistivety of the epoxy encapsulateing materials were studied.
考察了硅微粉的种类及用量对环氧灌封材料的凝胶化时间、冲击强度、吸水率、体积电阻率的影响。
The influence of the kind and using level of silica powder on the gelation time, impact strength, water absorption and volume resistivety of the epoxy encapsulateing materials were studied.
应用推荐