沥青

For the slope protection,domestic and foreign have various methods,such as:clean surface, and shotcrete stone surface and the use of concrete,asphalt,riprap,etc.,but these have a fatal weakness,the use of clean face,and shotcrete stone surface and the use of concrete,asphalt,riprap protection methods such as the slope,often due to excessive destruction of the human impact of the original natural and ecological environment.so that the entire road is almost formed a gray line,and While these protective measures outside the slope formed a protective layer of solid layer,but if there is a protective layer of water into the lower water flow and form,these protective measures will also be destroyed.

对于边坡的防护，国内、国外均有多种方法，比如：抹面、喷浆、石砌护面以及利用混凝土、沥青、抛石等等，但这些都有着致命的弱点，利用抹面、喷浆、石砌护面以及利用混凝土、沥青、抛石等方法进行防护的边坡，往往由于过多的人为影响破坏了原来的自然生态环境，使整条公路几乎形成一条灰色的路线，同时，这些防护措施虽然在边坡外面形成了一层坚固的防护层，但只要有水渗入防护层下部并形成水流时，这些防护措施也将被冲毁。

The temperature susceptibility index of the asphalt material is a key index of the asphalt serviceability.

沥青材料的感温性指标是沥青使用性能的核心指标，国际上现在所采用的有多种评价指标。

The finite element method is employed to analyze the shearing stress of the concrete bridge decks with waterproof layer.

应用有限元法，对设防水层的水泥混凝土桥桥面沥青铺装结构进行剪应力计算，分析了防水层的厚度、模量、泊松比、沥青混凝土铺装层厚度和模量等参数对结构层剪应力的影响，认为层间最大剪应力主要取决于面层厚度和防水层模量，相同的防水层模量通过增加面层厚度是降低层间剪应力的最有效手段。

Shell Bitumen can provide your road- lay ing project with quality products and expert advice.

壳牌在全球拥有三十余个沥青炼厂、八个研究中心，是世界上最大的专业沥青供应商

Using linear elastic fracture mechanics and finite element method and window moving technique, a two-dimensional asphalt pavement crack propagation path simulator program has been developed with a combination of 8-node quadrilateral isoparametric element and 6-node triangular collapsed singular isoparametric element.

鉴于影响沥青路面早期裂缝的因素多而复杂，给出了影响沥青路面裂缝的因素及其相互作用关系图帮助识别裂纹形成机理。

Based on limiting the tensile strain at the bottom of the asphalt layer and the vertical compressive strain at the top of the subgrade, the suitability of layer thickness is checked by two criteria. One is controlling the maximum surface deflection under the design load, and the other is controlling the modulus ratio between adjacent unbound aggregate base and subbase layer.

该方法基于限制沥青层底的拉应变和路基顶面的压应变，采用两个准则来校核所设计的沥青层厚度的适宜性：一是控制设计荷载作用下的最大路表弯沉；二是控制相邻两个无结合料处治的集料层的模量比。

The infrared thermograph is fit for evaluating temperature difference of hot asphalt mixture just paved,but not fit for those compacted,which was covered with a film of water.

红外热像仪适用于评价松铺沥青混合料的温度均匀性，而不宜用于评价碾压后的沥青混合料。

So TLA is a kind of modified material which possesses better performance with more application prospects.

因此湖沥青是一种性能良好的沥青改性材料，有较好的应用前景。

In this paper,the affecting factors on thermal stability and rut resistance property of asphalt mixtures are discussed.Based on the wheel rutting test for different type asphalt mixtures at high temperature,gray correlation degree between each factor and dynamic stability and total plastic deformation was analyzed respectively.

本文从混合料角度分析了影响沥青混合料高温抗车辙性能的因素，并通过不同因素条件下沥青混合料高温车辙试验，分别以动稳定度和总变形量作为参考序列，对影响因素进行灰关联分析。

In the island of Trinidad the oil is in the form of asphalt, a substance used for making roads.

在特立尼达岛，石油以沥青的形式出现，沥青是一种用来铺路的物质。

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。