1) relative dynamic elastic modulus
相对动弹性模量
1.
There are two criteria,the change of relative dynamic elastic modulus(RDM) and the mass change,for evaluating the frost resistance of concrete.
采用快速冻融法,以质量变化和相对动弹性模量作为混凝土抗冻性能的评定指标,研究了聚丙烯腈纤维在三个体积掺量0。
2.
There are two criteria,the change of relative dynamic elastic modulus(RDM)and the mass of scaling,for evaluating the resistance of concrete.
采用快速冻融法,以剥落量和相对动弹性模量作为混凝土抗盐冻性能的评定指标,研究了混凝土在3。
3.
The relative dynamic elastic modulus of concrete is 42.
试验结果表明:掺加纤维素纤维可以明显改善混凝土的抗冻性能,随着冻融次数的增加,纤维的作用愈加明显;300次冻融循环后,素混凝土的相对动弹性模量降为42。
2) relative dynamic modulus of elasticity
相对动弹性模量
1.
The result showed that the concrete was replaced by 25% fly ash which was good for the freezing resistance of concrete;in the same substitution ration of cement by fly ash,drawing-in proper air could stave the receding of the relative dynamic modulus of elasticity;the proper sand ratio could improved the salt-frost resistance of concrete when in the same water-binder ratio.
试验结果表明:粉煤灰掺量25%对混凝土的抗冻盐性能有利,在相同粉煤灰掺量时,适量引气可大大延缓混凝土相对动弹性模量的下降,在保持水胶比一定时,适当的砂率也会在一定程度上改善混凝土的抗盐冻性能。
3) Relative dynamic modulus of elasticity
相对动弹模
4) dynamic modulus
动弹性模量
1.
8 was carried out, and the dynamic modulus variation of the specimen to the erosion time was determined by ultrasonic checking method.
运用超声波技术测定了不同浓度硫酸盐侵蚀下不同水灰比水泥砂浆试件的动弹性模量值,分析了此实验条件下试件动弹性模量随侵蚀时间变化的规律,并对实验结果作了简要的机理分析。
2.
The dynamic constitutive relation and the dynamic modulus are investigated according to the data obtained by dynamic triaxial tests under different conditions such as confining pressure,replacement ratio,initial dry density and initial water c.
在分析和总结前人对纵向增强体复合地基动力特性研究的基础上，本文通过动三轴试验，对模拟深层搅拌桩、灰土桩、CFG桩复合地基的复合试样的动力特性与纯粉土试样的动力特性进行对比分析，根据不同围压、不同置换率、不同干密度和不同初始含水量等因素影响下的动三轴试验所得的资料，较为系统地从动本构关系、动弹性模量等几个方面进行了考察，探索了太原地区粉土经三种不同特性的竖向筋材处理后复合体的动力特性与各影响因素之间的关系。
3.
The dynamic ratio constitutive relationship, the dynamic modulus, the dynamic damping and the dynamic distortion are investigated according to the data obtained by dynamic triaxial tests under different condition such as confining pressure, cement(lime) ratio and age.
在分析和总结前人对水泥土和灰土动力特性研究的基础上,本文通过动三轴试验,将水泥土和灰土的动力特性与纯粉土试样的动力特性进行对比分析,根据不同围压、不同掺灰比和不同龄期等因素影响下的动三轴试验所得的资料,较为系统地从动本构关系、动弹性模量、动变形等几个方面进行了考察,探索了太原地区粉土经两种不同粉体加固处理后土体的动力特性与各影响因素之间的关系,并对水泥土和灰土的动力特性进行了对比分析。
5) Dynamic elastic modulus
动弹性模量
1.
Effect of beam length on determination of dynamic elastic modulus of materials by means of cantilevel beam method;
梁长对悬臂梁振动测定材料动弹性模量的影响
2.
Laboratory experimental study on dynamic elastic modulus of sandy pebble soil subjected to dynamic loading;
砂卵石土在动荷载作用下的动弹性模量研究
3.
Degradation of dynamic elastic modulus of soft clay under cyclic loading;
循环荷载下软土动弹性模量衰减规律研究
6) dynamic modulus of elasticity
动弹性模量
1.
Using compression wave ultrasonic transducers to measure velocity of surface waves and dynamic modulus of elasticity for concrete;
用纵波超声换能器测量砼表面波速和动弹性模量
2.
It was researched that increasing tendency of the dynamic modulus of elasticity and the compressive stength of concrete in standard environment after having been cured at -5-10-15and naturally altering minus temperature(+1-6-5-15).
研究了-5、-10、-15℃及两种自然变负温(+1~-6℃、-5~-15℃)养护条件下及转正温标准养护后混凝土的动弹性模量与抗压强度的变化规律。
3.
It was discussed that the development of dynamic modulus of elasticity and compressive strength of concrete in standard environment after having been cured at -5℃、-10℃、-15℃ for 7days and under condition of changing to minus temperature naturally(+1℃～-6℃、-5℃～-15℃).
本文研究了-5℃、-10℃、-15℃及两种自然变负温(+1℃～-6℃、-5℃～-15℃)养护条件下及转正温标准养护后混凝土的动弹性模量与抗压强度的变化规律,试验结果表明:与标准养护的混凝土的动弹模增长规律相比较,可以利用动弹性模量随时间变化规律确定不同负温下混凝土的损伤程度;与不同负温养护温度下混凝土的强度增长规律相比较,二者的发展规律一致,但对一次冻结模式与多次冻结模式的负温混凝土,二者发展规律存在一定差异。
补充资料：表观弹性模量
分子式：
CAS号：
性质： 在减震橡胶制品中，由于橡胶与金属黏着界面的形状效应，不能仅由形状尺寸和橡胶的弹性模量来决定不同方向的弹簧常数，为此将表观弹性模量Eap定义为：圆柱形：Eap=(3+4.9355S2)G正方形：Eap=(3+6.580S2)G无限长柱：Eap=(4+3.290S2)G式中G为剪切弹性模量，S为形状因子。
CAS号：
性质： 在减震橡胶制品中，由于橡胶与金属黏着界面的形状效应，不能仅由形状尺寸和橡胶的弹性模量来决定不同方向的弹簧常数，为此将表观弹性模量Eap定义为：圆柱形：Eap=(3+4.9355S2)G正方形：Eap=(3+6.580S2)G无限长柱：Eap=(4+3.290S2)G式中G为剪切弹性模量，S为形状因子。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条