沥青

A somewhat different variety of this development at its finest can be found in the most modern asphalt wearing course construction method,"Stone Mastic Asphalt".

一种略为不同的各种这方面的发展在其优秀的可以在最现代的沥青身穿课程建设的方法，"石浇注式沥青"。

So near the end of the 60s, a new construction method for asphalt wearing courses emerged: what is known today as "Stone Mastic Asphalt".

如此接近60年代末，一个新的施工方法沥青身穿课程出现：什么是当今的"石浇注式沥青"。

The significance of this new construction method is clear when one considers that alone in Germany, over 200 million square meters of asphalt wearing courses paved using the Stone Mastic Asphalt construction method have been built.

的意义，这种新的施工方法是明确认为，当一个独自在德国，超过200万平方米的沥青铺设身穿课程使用石浇注式沥青施工方法已建成。

The concept such as average particle area ratio and average asphalt mastic thickness were defined to evaluate the asphalt mixture compacting density.

并定义了平均颗粒面积比和平均沥青砂胶膜厚的概念，用来评价沥青混合的密实性。

Based on laboratory and in-situ tests, the influence of initial void on the rutting-resistance, moisture damage-resistance, strength and permeability of asphalt mixt is studied, and the appropriate ranges of air void of asphalt mixtures are analyzed and suggested.

摘要在室内试验和现场测试的基础上，分析初始空隙率大小对沥青混合料抗车辙能力、水稳定性、强度和渗透性能的影响，探讨沥青混合料空隙率的界限值。

3Asphalt fractionated by evaporation results from the mixing of light paraffin series generated in the later stage and normal or heavy oils generated in the earlier, resulting in the precipitation of asphalt from liquid oil because of the unstable state.

燕发分馏沥青是指晚期生成的轻质石腊族烃与早期生成的正常原油或稠油相混，造成不稳定状态，造成沥青从液态石油中析出。

The development and evolution of polymer modified paving asphalt is introduced in this paper.

介绍了聚合物改性沥青的发展沿革，着重阐述了SBS 改性沥青的技术关键和生产工艺及设备。

Based on the perdurable performance of the asphalt pavement are influenced by water, heating, ultraviolet radiation, this paper studies the water stability, heating ageing and ultraviolet radiation ageing of bituminous mixtures.

基于水、热和紫外线对沥青路面耐久性的影响，针对沥青混合料浸水、受热老化和紫外线老化三个方面进行研究。

The main research approach is to compare several kinds of existing drainage pitch mixture gradation, through adjusting fine aggregate and coarse aggregate proportion, especially 2.36mm and 1.18mm, from the results of tests, point out optimum gradation of good water stability, and find the interrelation of bituminous mixture perviousness and void ratio.

主要研究方法是比较几种现有的排水沥青混合料的级配，通过调整级配的粗料和细料，特别是4.75mm和1.18mm的集料比例，从所确定级配的试验中，发现具有良好水稳性的最佳级配，并发现沥青混合料的透水性和空隙率的相互关系。

The profound researches on the mechanism of photooxidation, rheological properties, service performance and retained fatigue life of asphalt binder, under the condition ...

对沥青在紫外光老化过程中的老化机理、流变特性、路用性能及残余疲劳寿命进行深入系统的研究，可以为评价和预测沥青的抗紫外光老化性能提供理论基础和技术指导。

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。