沥青

Emulsification mechine adopt modified emulsification machine which can manufacture modified emulsin asphalt and Emulsion asphalt.

乳化机采用改性乳化机，具备同时生产改性乳化沥青和普通乳化沥青的能力，一机两用的特点。

Two series of Soxhlet extraction for each sample used in the presence and absence of copper respectively are conducted. Experimental results indicate that copper treatment has a strong influence on the quantity of the EOM, the extent of which depends on the sample.

实际地质样品在不同溶剂中加铜与不加铜的索氏抽提对比实验结果显示，加铜时抽提得到的氯仿沥青的量会增加，甲醇沥青则没有明显一致的变化规律。

Remarkable changes are ubiquitous for NSO fractions and asphaltene. The yields of fatty acids from copper-treated EOM, in particular palmitic acid and stearic acid, do not decrease for the interaction of copper with organic acids but increase markedly.

加铜得到的可溶有机质脂肪酸的含量不仅没有因为铜和脂肪酸的作用而减少，反而大幅度增加，尤其是氯仿沥青中的脂肪酸，甲醇沥青中的脂肪酸增幅较小。

The mechanism of cohesiveness is discussed between modified asphalt and aggregate in this paper,which is based on the test results of chemical constituent、ESCA、absorptive capacity and cohesion.

在沥青组分分析、表面能谱分析、吸附和粘结力试验结果的基础上，论述了聚合物改性沥青和矿料的粘附作用机

It is estimated that the demand of road asphalt will rea ch 4 000 kt/a in the forthcoming years and the growth rate of high-grade ro ad asphalt will be enhanced.

预计今后几年道路沥青的需求量约为4000kt/a，其中高等级道路沥青的比例要求有更大的增长。

Roundness tolerance of pitch diameter Roundness tolerance for a minimum of 345o circumferential arc of the pitch diameter shall not exceed .002 inch (0.051 mm) total, or one half the pitch diameter tolerance if the pitch diameter tolerance is less than .004 inch (0.102 mm); roundness tolerance of the remaining 15o maximum circumferential arc shall not exceed .004 inch (0.102) total, provided such tolerance does not result in excrescence on the thread flank.

圆度公差沥青直径圆容忍最低限度的345o圆周弧音高直径不得超过0.002英寸（ 0.051毫米）总，或一的一半，足球场直径公差，如果沥青直径公差小于0.004英寸（ 0.102毫米）；圆的耐受性，其余15o最大周弧不得超过0.004英寸（ 0.102 ），共计提供这样的宽容不会导致在excrescence对线程的侧翼。

Engineering experience and research results indicate that this damage is due to the extortionate air voids of bitumen mixtures.

在高速公路沥青路面中，水损坏是沥青路面的主要病害之一，也是导致沥青路面早期破坏的主要原因之一。

The paper also presents the calculation technique of reference fugacity,and the matching method to saturation pressure and amount of precipitated asphaltene through the example shown in the paper.

结合实例计算，给出了沥青质参考逸度的计算、饱和压力和沥青沉降量的拟合方法。

Aiming at rheology characteristics of gilsonite modified bitumen, the gilsunite performances of various kind and dosage are compared and analyzed with PG appraisal system through DSR, BBR and Brookfield revolving viscosity tests.

hi【gh temperature performance 目前国内外通行的沥青标准与沥青路面的实际性能已显露出许多矛盾，有些指标并不能反映沥青的使用品质。

The paper combined with the data of pavement distress of Shen-Da Expressway,studied distress regular of asphalt pavement,on this condition,established a long term forecasting model of asphalt pavement adopting grizzle system theory.

结合沈大高速公路青路面破损状况的实测资料，对高等级公路沥青路面破损规律及评价方法进行了研究，在此基础上，运用灰色系统理论方法建立了沥青路面破损状况的长期预报模型。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。