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1)  light paving material
轻质铺装材料
1.
Next,three aspects were considered as key technology and research challenges of bascule bridge deck surfacing here,(i)development on light paving material and research on thin deck surfacing system,(ii)numerical simulation of the mechanical properties of bascule bridge deck surfacing based on long cantilever structure and contact behaviors between interfaces,(iii)bonding layer material testing.
在介绍国内外立转开启式桥梁桥面铺装研究现状的基础上,从轻质铺装材料开发和薄型铺装结构研究、基于大悬臂结构和界面接触特性的力学性能数值模拟、黏结层材料试验3个方面阐述了立转开启式桥梁桥面铺装研究的关键技术和难点。
2)  paving material
铺装材料
1.
The structure, paving techniques and the future of some type of polyurethane plastic playgrounds, such as the coiled plastic course with surface embossing, the plastic course with granular surface which sprayed by mixture of rubber pellet and polyurethane prepolymer, low cost two layer plastic course, and special paving material were introduced.
简要介绍了聚氨酯塑胶跑道的发展趋势 ,并介绍了表面压花卷材型塑胶跑道、现场浇注压花型塑胶跑道、表面颗粒包胶喷洒型塑胶跑道、低成本双层塑胶跑道及特殊要求的铺装材料的结构及铺装工艺等。
3)  paving materials
铺装材料
1.
By the improvement of grinding process of the component A of two component polyurethane paving materials, the production cycle is shortened, and the energy consume is reduced.
通过对聚氨酯铺装材料甲组分研磨工艺的改进 ,缩短了产品的生产周期 ,降低了能耗 ,取得了明显效
2.
A low cost polyurethane paving materials were produced by studying compositions and ratio of polyurethane elastomer admixture.
通过研究聚氨酯弹性体的组成及配比,制备了低成本聚氨酯铺装材料。
4)  pavement materials
铺装材料
1.
Based on the property and suitability of pavement materials, pavement materials selected properly is one of most important steps in the design of pavement.
大跨径钢桥桥面沥青铺装材料的性能对行车舒适性及桥梁耐久性有重要的影响,其设计与桥梁所处气候、交通荷载条件及某些特殊要求有关。
5)  light material
轻质材料
1.
Through the GRC density,mechanical properties testing include tensile strength and flexural strength test,and thermal conductivity analysis,it can be found out with appropriate alkali resistant glass fiber ratio,water ratio,water-cement ratio,light material ratio,the material can achieve the best performance,such as density of 0.
通过低碱度硫铝酸盐水泥和耐碱玻璃纤维,配合轻质材料(膨胀珍珠岩、聚苯乙烯、膨胀蛭石)研制成轻质GRC材料,对GRC材料的密度、力学性能(抗拉强度、抗弯强度)以及导热性能进行测试分析,发现在合适的抗碱纤维配比,水配比,水灰比,轻质材料配比的情况下,其性能最好,达到密度为0。
2.
Natural environmental corrosion protection technology database for light materials was designed and established making use of material corrosion data and environmental corrosion data of natural environmental test network,under the Windows operating system,and adopting SQL database management system.
利用现有环境试验网站材料腐蚀数据和环境腐蚀数据并加以整理,在Windows操作系统环境下,采用SQL Server数据库管理系统,设计和创建了基于B/S结构轻质材料自然环境腐蚀防护工艺数据库系统。
3.
As a kind of geotechnical material, light material is made of artificial materials, the primary character of which is that it is lighter than common soil while the intensity and the deformation feature may be equal to or even be better than good soil.
轻质材料是指使用人工材料制作的表观密度较低,而强度较高的材料,其主要特点是表观密度比一般的土体小,而强度和变形特性可以达到甚至超过良好土体。
6)  Lightweight material
轻质材料
1.
In the design for the reinforment,lightweight materials are used to reduce the weight of the building itself,and some measures are taken to decrease the measure length of the ground column so that the building can be more earthquake resistant.
加固设计中通过采用轻质材料来减轻结构自重及减小底层柱的计算长度的措施,以减小结构的地震反应。
2.
Lightweight material s application actuality using to automobile is instroduced, and expatiate that using lightweight material is important path of automobile energy conservation.
介绍了轻质材料在汽车上的应用现状,阐述了使用轻质材料是汽车节能的重要途径。
补充资料:轻质耐火材料
      气孔率高、体积密度小、热导率低的耐火材料。在工业窑炉和其他热工设备上用作隔热材料。与一般耐火砖比较,抗渣蚀性、力学强度、耐磨损性较差,高温下体积收缩较大。
  
  类别 有多种分类方法:①按体积密度分类。体积密度在 0.3~1.3克/厘米3的为轻质砖;低于 0.3克/厘米3的为超轻质砖。②按使用温度分类。使用温度600~900℃为低温隔热材料;900~1200℃为中温隔热材料;超过1200℃的为高温隔热材料。③按制品形状分类。一种是定形的轻质耐火砖,包括粘土质、高铝质、硅质以及某些纯氧化物轻质砖等;另一种是不定形轻质耐火材料,如轻质耐火混凝土等。
  
  制砖工艺 烧尽加入物法 在制砖的泥料中,加入容易烧尽的加入物,如锯木屑、石油焦、木炭、烟煤、木质素等。烧成时这些加入物被烧尽而使制品具有较高的气孔率。
  
  泡沫法 在制砖的泥浆中,加入诸如松香皂、角皂素、聚苯乙烯等泡沫剂,并以机械方法使之起泡,经烧成后获得多孔的制品。
  
  化学法 利用可产生气体的化学反应,于制砖过程中获得多孔制品。通常是在泥浆中加入碳酸盐(如白云石、菱镁矿)和无机酸作发泡剂,再以半水石膏或水硬性物质(如水泥)作稳定剂。
  
  多孔材料法 用天然的硅藻土或人造的粘土泡沫熟料、氧化铝或氧化锆空心球等多孔原料制取轻质耐火砖。
  
  常用并较方便的是烧尽加入物法和泡沫法。
  
  性质和用途 几种典型轻质砖的性质如表。
  
  工业窑炉砌体蓄热损失和炉体表面散热损失,一般约占燃料消耗的24~45%。用热导率低、热容量小的轻质砖作炉体结构材料,可节省燃料消耗;同时,由于窑炉可以快速升温和冷却,能提高设备生产效率;还能减轻炉体重量,简化窑炉构造,提高产品质量,降低环境温度,改善劳动条件。但是,轻质耐火砖气孔率较大,组织疏松,不能用于直接接触熔渣和液态金属的部位;力学强度较低,不能用于承重结构;耐磨性能很差,不宜用于与炉料接触、磨损严重的部位。
  

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