体积膨胀系数

一般大气环境中钢筋的锈蚀机理与体积膨胀系数

The mechanism of reinforcement rust and the coefficient of rust volume expansion in the normal atmospheric environment

通过有限元公式推导可知，冻胀力随岩体孔隙率的增加而增大，随水变成冰的体积膨胀系数的增加而增大，随岩体本身的刚度（弹性模量）的增大而增大。

FEM formula analysis showed that : frost force increased along with the accretion of the porosity of rock , the expansibility of water , the rigidity of rock itself .

在此基础上推算出钢筋锈蚀体积膨胀系数的理论值，并根据现场多组实测值给出钢筋锈蚀体积膨胀系数的统计结果。

The coefficient of rust volume expansion is deduced based on aforementioned mechanism . Moreover , according to the data surveyed in situ , statistical results of the coefficient are given .

本文对硅橡胶线膨胀系数和体积膨胀系数关系进行了推导，得到硅橡胶加热条件下尺寸和对舱段压力与温度变化的关系。

In this paper , through the derivation of the linear and cubic expansion coefficients , the relationship between the dimension of the silicone rubber when heating , and the cabin pressure and temperature were achieved .

膨胀的关于膨胀的或有膨胀特征的本论文推导了一个体积热膨胀系数与体积和温度间的关系式。

An equation about the relation between volume thermal expansion coefficient and volume , temperature is presented .

体积热膨胀系数随压力的增加逐渐减小，在压力较低时随温度的增加而增加；

Bulk thermal expansion coefficient decreases with increasing pressures , and increases with elevating temperatures at lower pressures .

并且在对有关实验数据进行分析的基础上提出了一个新的体积热膨胀系数和体积弹性模量的乘积与温度间的关系式。

On the analysis of some experimental values , a new equation between the product of and temperature is proposed .

通过测定样品的吸水率、气孔率、体积密度及热膨胀系数等，并配以XRD，SEM等测试手段，系统研究了其合成工艺。

The synthesizing process of the cordierite was systematically investigated and the sample properties of water absorption , porosity , density , thermal expansion coefficient , etc . were tested and the microstructure characteristics were observed by XRD , SEM .

随着钼渣添加量增加，钼渣微晶玻璃的抗折强度、体积密度和热膨胀系数减小，而显气孔率、吸水率、收缩率增大，耐酸耐碱性能好。

Bending strength , bulk density and thermal dilatation of molybdenum slag glass-ceramics are smaller when adding molybdenum slag more while obvious porosity , water-absorbing capacity , rate of shrinkage are bigger , the performance of Acidresistivity and alkali resistivity are excellent .

本文试验研究了骨料岩性对混凝土力学性能、极限拉伸、干燥收缩、自身体积变形、热膨胀系数等性能的影响，以期获得骨料对混凝土抗裂性能的正确认识。

The paper tests and studies on the influence of aggregate rock feature on concrete performance such as mechanics performance , ultimate stretching deformation , dry contraction , self volume deformation , thermal expansion coefficient etc. so as to obtain the correct understanding of aggregate to concrete crack resistance .