目标孔隙率,target porosity
1)target porosity目标孔隙率
1.According to the requirements for technical performances and multifunction of porous concrete for pavement,a mix design method based ontarget porosity is introduced,moreover the rational value ranges of mix parameters are also given.根据多孔混凝土路用性能和功能性要求,提出了基于目标孔隙率的多孔混凝土配合比设计方法,推荐了配合比参数的合理范围。
2.Moreover,aimed at the existing problems of porous concrete applied in highway pavement at present,an opinion manufacturing of porous concrete to successfully control itstarget porosity and ideal pore status at different stages is put forward.针对路面多孔混凝土存在的问题,提出多孔混凝土制备技术的实质即成功控制多孔混凝土在不同阶段的目标孔隙率和理想孔隙状态,并就最佳目标孔隙率、骨架-孔隙结构的增强和改性、路面构造参数优化及基于目标孔隙率的配合比设计方法等关键问题,综述自身研究成果,具有较大的参考价值。
2)porosity[英][p?:"r?s?ti][美][p?"rɑs?t?]孔隙率
1.Porosity test in carbon composites based on a new ultrasonic attenuation method;碳纤维复合材料孔隙率超声衰减测试研究
2.Quantitative measurement of ceramic uranium dioxideporosity and pore distribution;陶瓷UO_2孔隙率与孔隙分布的定量测量
3.An experimental study on theporosity measurement of medium and high consistency pulp;中高浓纸浆孔隙率测定的研究
英文短句/例句
1.Research on accurate measurement method of porosity of macropore sample公路工程大孔隙试件孔隙率精确测定方法研究
2.Investigations on CFRP Porosity Using Ultrasonic Testing Based on Random Pores Model基于随机孔隙模型的CFRP孔隙率超声检测研究
3.Internal friction behaviors of porous NiTi alloys with variable porosities可变孔隙率多孔NiTi合金的内耗行为
4.The ratio of the volume of all the pores in a material to the volume of the whole.孔隙率一材料中孔隙的总体积与整个材料的体积之间的比率
5.It is the porosity due to interconnected pores that can be filled with and emptied of water.这种孔隙率是水可流出和流入的连通空隙。
6.Metallic coatings--Review of porosity testsGB/T17720-1999金属覆盖层孔隙率试验评述
7.Seismic velocity can occasionally be affected by porosity and temperature.孔隙率和温度有时也能影响地震波速。
8.The study result was verified by porosity testing.分析结论通过孔隙率检验得以证实。
9.Research on Ultrasonic Methods for Porosity Measurement复合材料孔隙率的超声检测方法探讨
10.Influence of Adscititious Materials on the Porosity of Cement Concrete外加材料对水泥混凝土孔隙率的影响
11.PRELIMINARY RESULTS ON RELATIONSHIP BETWEEN THERMAL DIFFUSIVITY AND POROSITY OF SEA ICE IN THE ANTARCTIC南极海冰导温系数与孔隙率关系初探
parison of Porosity Detection Method of the Composites复合材料孔隙率检测方法的比较研究
13.Theoretical Research and Verification of the Porosity of Semi-fixed Abrasive Tools半固着磨具孔隙率的理论分析及验证
14.EFFECT OF POROUS PREFORMS ON POROSITY OF PREPARED TiC/Ni_3Al COMPOSITES多孔预制件对TiC/Ni_3Al复合材料孔隙率的影响
15.Rising temperature of casting solution will increase the water flux, porosity and average pore size of PVDF membrane.制膜液温度升高，得到微孔膜的孔隙率、通量及平均孔径都增大。
16.The electrographic test method of plating porosity for printed boardsGB/T4677.9-1984印制板镀层孔隙率电图象测试方法
17.Metallic coatings--Porosity tests--Ferroxyl testGB/T17721-1999金属覆盖层孔隙率试验铁试剂试验
18.Metallic foams are new engineering marerials with high porosity.金属泡津材料是一种高孔隙率的新的工程材料。
相关短句/例句
porosity[英][p?:"r?s?ti][美][p?"rɑs?t?]孔隙率
1.Porosity test in carbon composites based on a new ultrasonic attenuation method;碳纤维复合材料孔隙率超声衰减测试研究
2.Quantitative measurement of ceramic uranium dioxideporosity and pore distribution;陶瓷UO_2孔隙率与孔隙分布的定量测量
3.An experimental study on theporosity measurement of medium and high consistency pulp;中高浓纸浆孔隙率测定的研究
3)void content孔隙率
1.A new method based on pulse echo method was proposed for nondestructive testing ofvoid content of carbon fibre reinforced composite material.用超声反射法对碳纤维复合材料试块进行孔隙含量检测,探讨基于超声反射波频谱分析理论建模与实验标定的碳纤维复合材料孔隙率测试方法。
2.Aiming at the test ofvoid content of carbon-fiber reinforced composite used in aeronautic industry, developed a portable ultrasonic non-destructive test system.针对航空工业碳纤维复合材料板材的孔隙率检测,研制了便携式超声无损检测系统。
3.The attenuation coefficient shows approximately linear behaviour with frequency over the frequency range used,and the attenuation slope increases with thevoid content.结果表明:超声衰减系数与频率之间存在线性关系,而且其斜率随孔隙率的增大而增大。
4)pore ratio孔隙率
1.It analyzes influencing of fly-ash to durability of concrete from alkali aggregate effect、pore ratio、free shrinkage、crack-resistant under constraint condition,it indicates it is important influencing factor that delay service life of concrete when ensure durability of concrete.从碱集料反应、孔隙率、自由收缩、约束条件下抵抗开裂、混凝土强度等方面系统地分析了粉煤灰对混凝土耐久性的影响,表明了保证混凝土的耐久性是延长混凝土寿命的重要因素之一。
2.The compressive modulus,which characterizes the deformation behaviors of loose rock blocks under confining constraint,is related with many factors,such as thepore ratio,rock strength and so on.通过对松散岩块进一步的压实试验研究,得出了松散岩块的侧限压缩模量与孔隙率及岩块抗压强度之间的关系。
5)high porosity高孔隙率
1.Preparation of porous Al withhigh porosity by infiltration method;渗流法制备高孔隙率多孔铝
2.The porous ceramic filtration materials withhigh porosity were fabricated by using floating beads as the aggregate and millet/polystyrene pellet and carbon powder as the pore-forming agent.43 %的高孔隙率多孔陶瓷滤料。
6)porosities[英][p?:"r?siti][美][po"rɑs?t?]孔隙率
1.The relationships between foamporosities and the processing parameters are studied.采用粉末致密化发泡(PCF)工艺制备泡沫铁,研究了各工艺参数对泡沫铁制备及其孔隙率的影响规律,得出了实验条件下的优化工艺参数配置,对制备过程及影响孔隙率的因素进行了分析,获得了泡沫铁的优化制备工艺及各工艺参数对孔隙率的影响规律,对泡沫铁的研究与开发具有显著意义。
延伸阅读
孔隙率分子式：CAS号：性质：又称孔隙度。是多孔结构物质的特性之一。指催化剂颗粒内的孔体积占催化剂颗粒体积的分数。用θ表示。=1-ρ颗/ρ真=Vgρ颗。其中Vg是比孔容，ρ颗，ρ真，分别为颗粒密度和真密度。注意不要与空隙度混淆，它是单位质量催化剂颗粒间堆积空隙(空隙体积)与总堆积体积之比，反映堆积的松密程度。此外，孔隙度亦指岩石中未被矿物质占据的空间的量度。即总空隙空间在整个岩石体积中所占的百分数。
