沥青

The shape of a coarse aggregrate can be fully expressed in terms of the independent properties: form, angularity and flat index.

基于沥青混合料数字图象处理技术而开发的处理软件是分析沥青混合料内部结构，研究沥青混合料宏观力学性能的有效手段。

The adoption of stone matrix asphalt SMA-16 ,with SBS modified bitumen ,in the pavement course on Shen-Da Freeway rebuilding is one important decision based on scientific experiment and characteristics of shenda highway rebuilding itself .It is not only suit heavy traffic and difference in temperature variety the factor of etc. environment request road, but also to road usage function for anticatalyst and durability with enduring all having very big exaltation, guaranteeing the road.

沈阳至大连高速公路改扩建工程路面表面层采用沥青玛蹄脂碎石混合料SMA- 16型(简称SMA - 16 )，沥青采用SBS改性沥青，是在科学试验的基础上，结合沈大路自身的特点所做的重大决策；它不仅适合沈大路交通量大、温差变化大等环境因素对路面的要求，而且对路面的抗滑性和耐久性均有很大的提高，保证了路面的使用功能。

After being compared and analyzed, asphaltene deposition models can be classified as the ones based on phase splitting and colloid instability.

在对比分析的基础上，将沥青沉积模型划分为基于相劈分的沥青质沉积模型及基于胶体不稳定性的沥青质沉积理论模型，指出了各模型的局限性及其存在根源。

After being compared and analyzed, asphaltene deposition model s can be classified as the ones based on phase splitting and colloid instability.

在对比分析的基础上，将沥青沉积模型划分为基于相劈分的沥青质沉积模型及基于胶体不稳定性的沥青质沉积理论模型，指出了各模型的局限性及其存在根源。

Asphaltum: Natural mineral compounds consist of carbon, hydrogen, sulphur and nitrogen or the residue from distillation of petroleum, coal tar or rosin.

沥青：天然产生的沥青是含有碳、氢、硫和氮的矿产化合物。人造沥青是蒸溜石油，煤焦油或松脂后的余下渣滓。

The results indicate that the μ of the asphalt mixtures has significant effect on the maximal lateral and shear strains. When the modulus ratio of the top and middle lagers is less than 0.8 and the μ of the asphalt top layer increases to a certain extent, the asphalt mixtures around the edge of wheel mark tend to flow towards both sides of the rut under the action of load, leading to the unstable rut.

结果表明，沥青面层的泊松比对沥青路面结构的最大横向应变和最大剪应变有显著影响：当上中面层模量比小于0.8且沥青面层泊松比增大到一定程度时，轮迹带边缘的沥青混合料在荷载作用下有向车辙两侧流动的趋势，容易产生失稳性车辙。

In view of the present situation of domestic asphalt such as insufficiency in production,incompleteness in assortment and inferior quality,thus resulting in importing large amount of asphalt etc., measuresfor speeding up the production of high quality petroleum asphalt such as selection of crudes suitable for producing asphalt, revision of the national standards, e...

针对我国石油沥青产量不足、品种不全、质量不高，导致近年来大量进口的现状，重点论述了加快优质石油沥青生产的措施，如选择适于生产沥青的原油，修订国家标准，创建名牌产品等，力争尽快提高我国石油沥青的产量和质量，扩大其市场占有率。

This paper studied the modification effects of granulated polymer-PR PLAST on asphalt mixtures by a large number of laboratory tests using different contents of the polymer. It is pointed that the rutting-resistance of mixture under high temperature is enhanced with the polymer contents and the Dynamic Stability is increased by 3 times on 0.5% polymer contents.

通过大量的室内试验分析，研究了粒化聚合物PR PLAST对沥青混合料性能的改善作用，通过对不同掺量的粒化聚合物沥青混合料的性能试验，发现掺量增加时，沥青混合料的高温抗车辙能力也随之提高，在掺量为0.5%时动稳定度提高约3倍；沥青混合料的水稳性也有一定程度的提高，低温抗裂性有少量改善。

Through a comparison test on the performance of waterproof agents for as- phalt concrete pavement,the article con- cludes that the waterproof agent used in bituminous concrete can effectively seal and block the internal hole of bituminous concrete,and keep the humidity from ente- ring the inner part of concrete....

文章通过对沥青混凝土路面防水剂防水性能进行对比试验，表明沥青混凝土防水剂可以有效的封堵沥青混凝土内部孔隙，防止水分进入混凝土内部，可以起到防水路面水损害的作用，同时指出沥青混凝土防水剂对路面抗滑性能存在负面影响等应注意的问题。

The results show that the coal pitch based activated carbon not only has good sphericity but also narrow particle size; with the same material pitch, the more naphthalene content, the lower the softening point of the modulated pitch. The max mass ratio of pitch to the liquor is 16 and the optimal speed is different using different stirrer.

结果表明：所制得沥青球球形度好，表面光滑，粒径分布范围窄；相同原料沥青，萘含量越高调制沥青软化点越低；沥青/水相的最佳质量比为16；不同的搅拌器最佳速度有所不同。

Since historical times,England ,where the early inhabitants were Celts, has been conquered three times .

从有历史以来，英国，在此地早期居住的是凯尔特人，已经被征服了三次。

Bluetooth OBEX File Transfer Enables the sending and receiving of files on your phone via Bluetooth.

蓝牙OBEX文件移动允许经过蓝牙传送和接受文件。。。。