1) AC impedane spectroscopy of concrete
混凝土阻抗谱
2) concrete resistance
混凝土电阻
1.
A changeable resistance was linked in series between the anion and cathode of the macrocell to simulate the change of the concrete resistance.
为了确定含氯混凝土中钢筋的宏电池腐蚀的特性 ,研究了钢筋腐蚀速度与混凝土电阻间的关系。
2.
Based on the electrochemical theories,the effects of concrete resistance and corrosion control modes in the corrosion kinetics of steel bars were discussed.
根据电化学理论讨论了钢筋腐蚀动力学中混凝土电阻影响及腐蚀控制模式2个基本问题,推导了钢筋腐蚀的阴阳极极化方程及腐蚀电位表达式,分析了影响钢筋腐蚀速率的若干主要因素。
3) concrete damping ratio
混凝土阻尼
1.
In order to remove the impact damping from coarse aggregate surface area of concrete,authors use the coarse aggregate that its total surface area are certain,and prepared some rectangular damping specimens,used hanging cuboid specimen and free vibration method to measure the concrete damping ratio changes after coarse aggregate surfaces are enhanced treatment.
将粗骨料表面进行强化处理来放大界面效应,从材料角度研究混凝土在小变形情况下粗骨料界面与混凝土阻尼之间的关系。
4) Impermeable concrete
抗渗混凝土
1.
Waterproof and impermeable abilities are very important to keep the normal state of an engineering project, and the key method to increase impermeability is to use impermeable concrete.
地下工程的防水抗渗能力对于保证工程项目的正常使用至关重要,使用抗渗混凝土是提高抗渗能力的关键。
5) frost-resistance concrete
抗冻混凝土
1.
Research and application of high frost-resistance concrete;
高抗冻混凝土的研究与应用
6) anti-seepage concrete
抗渗混凝土
1.
New workmanships, new materials and new technologies were applied in the construction to ensure the project quality, including anti-seepage concrete, suspended scaffolding, platform formwork, multi-point jacking and accumulated sliding at high altitude, unit glass curtain wall with vertical rib, PRC light compound partition board, siphon collecting system of roof rainwater and etc.
施工中采用抗渗混凝土、倒挂脚手架、台车模板、多点顶推高空累积滑移、单元式立肋玻璃幕墙、PRC轻质复合隔墙板、虹吸式屋面雨水回收利用系统等新工艺、新材料、新技术,保证了工程质量,满足了使用要求。
补充资料：星接阻抗和三角接阻抗的变换
星接阻抗和三角接阻抗的变换
transformation between starc-onnected and delta-connected impedances
x ing]一e乙日kongl介e sonJ一00}Iez日伙ongde匕一。一〕huon星接阻抗和三角接阻抗的变换(t ransfor-mation betweenstar一eonneeted and delta-eonneeted imPedanees)接成星形的三个阻抗和接成三角形的三个阻抗互相替代的等效变换。它们之间的关系可用一组变换公式表示。按这组公式，用星接阻抗替换三角接阻抗或者反过来，不会影响稳态下电路其他部分的正弦电压和电流，常用于对称三相电路的分析和计算。 图1为三个阻抗21、Z:、23接成星形(又称丫形)。图2为三个阻抗Z小22。、Zal接成三角形(又称△形)。它们之间的变换公式如下:人23土图1星接阻抗图2三角接阻抗(1)将星形连接变换成三角形连接212一Z:+22+2 122及3一22+za十警(1)、|冬|矛231一23+21+2321(2)将三角形连接变换成星形连接z、-二一典乒兴-) 艺‘2士乙“3十乙31…_2 oqZI，}Z。一下万~一二-二二-汁 乙‘2士乙23十乙3‘1_Z。IZoq}艺q一二二一~二，二二--，-二二-~J 乙12十乙23十艺32夕(2) 当三个星接阻抗相等，即21一Z:一23一z丫、三个三角接阻抗相等即212一223一231一Z△时，变换公式是 Z二一32丫，Z丫一Z△/3
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