耐久性

The result indicates that not all types of cracks have big effects on the durability and load capacity of concrete beam.

说明并不是所有类型的裂缝，对梁的耐久性和承载能力都有明显的影响。

For different materials,the macrostructure of damage sites are dissimilar.The microstructure of damage sites were indicated as follows:the damages of granite and marble after being particle impacted were made up of damage of cleavage surfaces and crystal faces and spread of cracks along phase interface and pore space,which is harmful to mechanical property;while the damages of concrete and mortar were made up of cracks of transition zone and aggregates and plastic flow of C-S-H,which may cause more hidden danger to perma nence than to mechanical properties.

对四种材料损伤形貌的微观分析表明：花岗岩、大理石受颗粒冲击后产生的损伤主要为拉应力导致的解理面、晶面的破坏以及裂纹沿相界面和孔隙的扩展，对其力学性能有较大的危害；混凝土和砂浆的损伤由过渡区开裂、骨料破裂和C-S-H的塑性滑移共同构成，对耐久性造成的隐患远大于对力学性能的影响。

It applies a total of 24 pistons to the four brake disks, combining excellent performance with minimal weight and high durability.

它适用于24活塞共有四个制动盘，结合最小的重量和高耐久性的卓越性能。

In order to ensure the durability of concrete structure,the surface layer's concrete has to possess the good quality.

为了确保构件的耐久性，优良的表层混凝土是必须的。

Silicone resin clear concrete paint offers outstanding durability, water repelleny and breathability and maintains the natural finish color of concrete.

硅树脂清水混凝上涂料集耐久性，憎水性和透气性于一身，同时保持了混凝土本身的外观。

Silicone resin clear concrete paint offers outstanding durability,water repelleny and breathability and maintains the natural finish color of concrete.

硅树脂清水混凝土涂料集耐久性、憎水性和透气性于一身，同时保持了混凝土本身的外观。

The durability of concrete structure in general air environment, including concrete carbonization mechanism and influencing factors, steel corrosion mechanism and influences to the structural mechanical performance, cracks of concrete caused by the expansion of corrosion and the relation between width of crack and amount of corrosion, and the life estimation of reinforced concrete structure. At the same time, the paper introduced durability paint for concrete of xichang Cable-stayed bridge.

一般大气环境下普通钢筋混凝土结构的耐久性，包括混凝土碳化机理及影响因素、钢筋锈蚀机理及对结构力学性能影响、混凝土锈胀开裂及裂缝宽度与锈蚀量之间的关系以及钢筋混凝土结构寿命评价等，并利用以上理论对西昌斜拉桥钢筋混凝土塔柱进行了预测分析。

The effects of different steel bars and their various methods of connection on macrocell corrosion were analyzed, and the advantages and disadvantages of connection methods of steel bar were evaluated in terms of concrete structure durability.

根据参比电极扫描采集的电极电位数值曲线，分析了各种钢筋及其不同连接方法对其宏电池腐蚀的影响，并从混凝土结构耐久性的角度对各种钢筋连接方式的优缺点进行了评价。

She became a qualified plateau overhead travelling crane driver after training and examination. The loading and hanging techinic requirement was very high and difficult.

制梁场装吊桥梁技术要求高，难度大，一片07耐久性混凝土桥梁重达120多吨，需2台75吨龙门吊同时起吊，同步运行，不能有丝毫差错。

Thin elastic foundation of cement concrete pavement design theory, in-depth analysis is to arrive at the grass-roots non-uniform bearing broken concrete pavement panels, gnawing edge, the wrong units, as well as the main reason for structural damage produced by taking certain measures to improve the concrete between the road surface and the grass-roots support conditions, and improve durability of the cement concrete pavement and stability.

通过水泥混凝土路面弹性地基薄板的设计理论，深入分析得出基层的不均匀支承是水泥混凝土路面断板、啃边、错台、以及产生结构性破坏的主要原因，通过采取一定措施改善砼路面面层与基层之间支撑条件，提高了水泥混凝土路面的耐久性和稳定性。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。