In addition to availability of raw materials , other factors narrowing the choice of composition are glass color , workability , meltability , and sometimes , chemical durability of the glass 除了原材料的可获得性以外，其他因素也限制了玻璃组分的选择，如玻璃颜色、可加工性和可熔性，在某些时候，还需考虑玻璃的化学耐久性能。
When compounding the high performance concrete , the requirements of strength , construction workbility and endurance must be met , besides that , the economy should be taken into consideration 配制高性能混凝土除满足强度、施工性能和耐久性能以外，还应考虑其经济性。本文针对我区建筑业的实际情况，采用本地区原材料进行配制高性能混凝土。
In order to maintain and reinforce the pagodas , we must first evaluate structural safety , earthquake resistance and durability with the science attitude , but the reasonable analysis model is premise of the scientific evaluation 要对古塔进行维修和加固，首先必须对结构的安全性能、抗震性能和耐久性能有科学的评价，而合理的分析模型是科学评价的前提。
Compared with normal concrete , lightweight aggregate is provided with virtues : lightweight and high strength , heat insulation and preservation , fire - resistant , aseismatic , durability , general economical and technical effect 与普通混凝土相比，轻骨料混凝土具有：轻质高强、隔热保温性能好，耐火性能好，抗震性能好，耐久性能好，综合的经济技术效果好。
Based on component structure analysis of lime fly stabilized aggregate mixture , the performances of lime fly stabilized aggregate mixture with the skeleton density type , such as mechanical property , shrinkage , stability and durability are studied 同时，研究了骨架密实型二灰碎石的力学性能、收缩性能、抗冲刷性能、耐久性能等路面结构使用性能，并与常用的二灰碎石混合料作比较。
Secondly , this article uses variance analysis and other research means of statistics to study and definitize the best mix proportion ration of pumice concrete , and studies mechanics and durability of the concrete using the best mix proportion 通过正交分析的实验方法，研究并确定了浮石混凝土的优化配合比，并对根据该配合比设计而成的浮石混凝土的力学性能和耐久性能进行了分析研究。
We studied mix properties , mechanical properties and durability of polymer modified mortar under suited curing conditions compared with common mortar . the mortar cracking status was measured by use of the equipment of steel ring 根据最终所确定的聚合物种类和掺量,配制聚合物改性砂浆,在最合适的养护制度下养护,研究聚合物改性砂浆的拌合物性能、力学性能和耐久性能等,并与普通砂浆进行对比研究。
Other perdurabilities of new ccf are discussed in this paper . the results indicate that new ccf possesses fine anti - scorch , anti - impact and anti - contaminant functions . moreover , the quantity of free formaldehyde decreased in new ccf 新型高耐磨复合强化地板经企口全封闭法改性处理后，对其耐久性能研究表明，新型地板表面具有良好的耐香烟灼烧、抗冲击、耐日常用品污染等性能，且其游离甲醛释放量有所下降。
In this paper , the research and development of the ego are studied . the experiment research of the mechanical property , the electrical property , and the aging property are carried out . we can get the conclusion by the contrast with foreign products 本论文系统地研究了车用氧传感器的研制与开发，并对所生产的氧传感器进行了机械性能、电学性能、老化耐久性能等试验评价，通过试验结果与国外产品的对比得出结论。
In practical projects , because of high bonding strength of the organic anchoring material , organically post - installed bar was widely applied . however , the durability and the heat - resistance of the organic anchoring material are relatively bad , the structure lied in hidden danger 在实际工程中,因为有机粘结材料的高粘结性能,有机植筋被广泛应用,而有机粘结材料的耐久性能和耐高温性能较差,给结构埋下了安全隐患。
