Strain characteristics of different expansion factors(such as free expansion,confined expansion and effective expansion,etc) and the influential factors are analyzed.
通过对自由条件下的4种不同配合比自应力混凝土和11组不同配合比、不同尺寸的自应力钢管混凝土进行连续观测,讨论了不同条件下混凝土结构所产生的自应力变化规律,分析了自应力混凝土的自由膨胀、限制膨胀和有效膨胀等应变特点及其影响因素。
Super-high strain rate impact tensile testing data of some resin matrix composite,such as Kevlar,glass and carbon fibers reinforced composites,were obtained by freely expanding ring experiment in which shaping of explosive cylinder and design of sample rings were optimized,and .
通过自由膨胀环实验,得到了一些芳纶纤维、玻璃纤维、碳纤维等增强的树脂基复合材料在超高压应变率下的冲击拉伸试验数据,在实验中应用了简便的应变片电测技术,并优化了装药和试样环的设计。
The results showed that retarder used together with sulfoaluminate expansion agent can reduce restrained-expansion rate of expansion agent, and increase its early stage free-expansion rate and expansion index, as a result reduce its efficient expansion energy.
结果表明:缓凝剂和硫铝酸盐型膨胀剂复合使用时,会降低膨胀剂的限制膨胀率,增大其早期自由膨胀率及膨胀指数,从而降低其有效膨胀能。
The results showed that the synergy effect of retarders used together with superplasticizers can reduce the restrained-expansion rate and free-expansion rate of ulfo-aluminate expansive agents mortar specimens in water or air curing condition,but the expansion indexes of mortar specimens at .
结果表明:缓凝剂与高效减水剂的协同效应会降低硫铝酸盐型膨胀剂在水中养护和空气中养护条件下的限制膨胀率、自由膨胀率,增大膨胀剂砂浆水养28 d的膨胀指数,从而降低了硫铝酸盐型膨胀剂有效膨胀能的利用。
The results showed that superplasticizer used together with sulfo-aluminate expansive agents can reduce restrained-expansion rate of expansive agent,and drop free-expansion rate mixing naphthalene series and amino sulfonic,increase expansion index,so resulting in the reduction of efficient expansion energy of expansive agent.
结果表明:高效减水剂和硫铝酸盐型膨胀剂复合使用时,会降低膨胀剂的限制膨胀率,降低复掺萘系和氨基的自由膨胀率,增大膨胀指数,从而降低其有效膨胀能。
A Process of Free Expansion in A Container Which Insulates from Heat;
气体绝热自由膨胀过程中温度的变化
open expansion tank heating system
自由膨胀水箱式供热系统
This kind of expansion, made without adding heat, is called an adiabatic expansion.
我们把这种不加进热量的膨胀称为绝热膨胀。
Analysis of Thermodynamic and Statistics for Irreversibility of Free Expansion and Diffusion Process;
自由膨胀和扩散过程不可逆性的热统分析
Expanded perlite insulation
GB/T10303-1988膨胀珍珠岩绝热制品
expanded vermiculite thermal insulating cement
利用膨胀蛭石的绝热水泥
testing method for coefficient of linear expansion and shrinkage of insulating fire bricks during heating
绝热耐火砖线膨胀收缩率试验方法
The remainder of the power stroke is an adiabatic expansion.
动力冲程的后段是绝热膨胀过程。
Experimental Study on Dry Density and Free Swelling Ratio of Cement-Treated Expansive Soil
水泥改性膨胀土干密度与自由膨胀率试验研究
coefficient of linear thermal expansion
线性热(膨)胀系数
Test methods for expanded perlite insulation--Outset quality
GB/T5486.1-1985膨胀珍珠岩绝热制品试验方法外观质量
Test methods for expanded perlite insulation--Compressive strength
GB/T5486.2-1985膨胀珍珠岩绝热制品试验方法抗压强度
THE MICROCOSMIC EXPLANATION OF TEMPERATURE CHANGE OF IDEAL GAS IN ADIABATIC EXPANSION
理想气体在绝热膨胀时温度降低的微观解释
A gas released in free space would expand indefinitely.
在自由空间放出的气体将无限膨胀。
To swell out or expand from or as if from internal pressure.
膨胀，肿胀由或好象由内部压力而膨胀或扩张的
Iron ore pellets-Determination of relative free swelling index
GB/T13240-1991铁矿球团相对自由膨胀指数的测定方法
Test methods for expanded perlite insulation--Density and water content
GB/T5486.3-1985膨胀珍珠岩绝热制品试验方法密度和含水率
Sampling schemes and methods for expanded perlite insulation
GB/T5485-1985膨胀珍珠岩绝热制品抽样方案和抽样方法