耐久性

The experiment results show that the recycled concrete with high fluidity, high durability or high strength can be produced by using low water-bind ratio, employing good quality super-plasticizer; adding of fly ash and colloidal silica and controlling the maximum size of recycled aggregate.

试验表明采取低水胶比、高效减水剂、粉煤灰和硅灰作为掺合料、控制再生骨料的最大粒径，可以制备出高流动性、高耐久性、高抗折强度的高性能路用再生混凝土。

Made from tool steel and specially heat treated for strength and ductility.

由工具钢制成，经过特殊热处理使的强度和耐久性增强

A metal mold for tire formation that realizes not only enhancing of evacuation efficiency at the time of tire vulcanization molding but also enhancing of the durability thereof; a plug for use in vent hole of such a metal mold for tire formation; and a tire manufactured with the use of the metal mold for tire formation.

本发明提供能够提高轮胎硫化成形时的排气效率、并且能够提高耐久性的轮胎成形用模具、轮胎成形用模具的通气孔所使用的塞子以及使用该轮胎成形用模具制造的轮胎。

All tests were successfully conducted for six hours of fire endurance measured against the standard time/temperature curve.

根据标准的时间--温度曲线，所有测试都成功的通过了六小时防火耐久性试验。

In the last chapter, some available engineering methods such as lay EPS、building sun-shading shed、constructing ventilated roadbed have been studied by using numerical method and computer simulation, the effects of these engineering methods has been analyzed also.

最后，第五章探讨了提高路基热稳定性可以采用的工程措施，对铺设保温材料、修筑遮阳棚、修筑通风路堤进行了数值模拟研究，讨论分析了这些工程措施的耐久性和使用效果及条件。

Because the waterproofing question on the concrete bridge deck has not been regarded enough, the concrete bridges were always destroyed prematurely. Especially all kinds of damages occurred on the bridge deck pavement, which have directly influenced safety of steering and the duration of bridge structures and have done a lot of traffic inconvenience and have caused huge economic loses and have not achieved the anticipated economic efficiency.

混凝土桥梁，由于防水问题一直没有得到足够的重视，导致其过早地遭到破坏，尤其沥青混凝土桥面铺装层普遍出现了各种病害，直接影响了行车的安全和桥梁结构的耐久性，给交通带来了很大的不便，造成了巨大的经济损失，没有达到预期投资的经济效益。

As the replacement material of cement and concrete, superfine slag powder is widely used for it can be employed to improve the strength of cement and the durability of concrete.

矿渣微粉作为生产水泥的原料和混凝土的掺合料，可有效提高水泥的强度和改善混凝土的耐久性。

In order to enhance the strength of cement road surface and adapt the severe weather of westward area,concrete performance tests of adding slag in ordinary concrete were carried.

为提高水泥路面强度和耐久性以适应西部地区的恶劣天气，进行了在普通水泥砼中掺入矿渣掺和料的砼性能试验。

Since then, the slag Portland cement and the durability of a good value for the people by constantly understanding of the early 19th century in Europe has been widely used.

自那时以来，矿渣硅酸盐水泥和耐久性的一个很好的价值的人不断了解19世纪初在欧洲已得到广泛应用。

On this basis, the physical and mechanical properties and durability of recycled aggregate cement stabilized using steel slag cement without clinker was studied.

在研究无熟料钢渣水泥特性和安定性的基础上，重点研究了由无熟料钢渣水泥制备的水泥稳定再生集料的力学性能和耐久性。

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％。