沥青

With the electronic probe detection,it is discovered that the mineral elements of the Buton Rock Asphalt contains carbon,oxygen,sulfur,silicon,magnesium,aluminium,autunite,kalium and iron.

通过电子探针检测，测得了布敦岩沥青的矿物组成元素主要为碳、氧、硫、硅、镁、铝、钙、钾及铁等；微观形态结构表明布敦岩沥青中有的岩矿是多孔材料，沥青和岩矿相互包容。

The sample of granular cellular fiber with size of 5-8 mm is produced by using this technology which can be depicted as follow, adhering the asphalt particutate, which can be depicted as follow: adhering the asphalt particulate, which is made of news paper and asphalt, on the surface of fiber by emulsion method, then mixing them by mechanical stirrer, dewatering and pelleting.

采用这一工艺，以新闻纸和优质路用沥青作为原料，通过胶乳法使沥青颗粒均匀粘附在木质纤维表面，再通过机械搅拌、脱水、造粒等工艺，制备出5～8mm的颗粒状路用木质纤维样品，通过室内高温稳定性试验，比较掺入进口颗粒状路用木质纤维和掺入自制颗粒状路用木质纤维的沥青混合料的抗高温永久变形能力。

However, the result shows that temperature is the most important factor of shearing strength in layers; bestrew detritus diameter is the next one; and then is pave ply; waterproof material is the trifling one.

通过把胶粉改性沥青与SBS改性沥青在相同条件下进行点预估，得出胶粉改性沥青作为防水粘结层的层间抗剪切能力相对较大，适用于桥面。

The method and principle for standards system of bitumen constitution in China has been given.

随着人们对沥青认识的不断提高和生产技术的发展，沥青的用途更加广泛，一些新的沥青产品不断问世。

Investigates experimentally the blacktop performance of high-speed way utilizing recycled asphalt mixture, as well as the cause of damage to blacktop and its aging mechanism.

从高速公路沥青路面材料的再生利用出发，研究废旧沥青混合料中各种原材料的路用性能，以及沥青路面损害的原因及路面材料老化的机理。

In order to deeply analyze the distribution of maximum tensile strain during asphalt surface for Semi-rigid base asphalt pavement and compound base asphalt pavement , two types of typical structure were chosen, taking the Shell designing software BISAR 3.0 as calculation tool, considering two kinds interface contact condition of complete continuousness and not incomplete continuousness, then a comprehensive analysis was made on the maximum tensile strain of every structure on the basis different interface contact condition.

摘 要：为深入分析半刚性基层沥青路面和复合式基层沥青路面面层内的最大拉应变的规律，选取两类沥青路面的典型结构，采用壳牌设计软件 BISAR 3.0为计算工具，考虑层间完全连续状态以及不完全连续两种状态，对各结构在不同的层间结合条件下沥青层最大拉应变进行了比较和分析。

Through the test, we have obtained the decay law of the modified bitumen and analyzed the cause of its alternative temperature change.

通过模拟SBS改性沥青在生产、施工临时存储时的状况，对改性沥青的针入度、软化点、延度、弹性恢复等主要性能指标进行了全面试验，获得了交替升温时改性沥青的性能衰变规律，并分析了其性能衰变原因。

For this reason, the project creates the mathematical model and numerical method of backcalculation of layer moduli in asphalt pavement based on homotopy method in accordance with the theories of differential topology and optimization. Through selecting the rational objective functions of backcalculation of moduli, a large number of deflection basins of asphalt pavement with FWD are made the backcalculation of moduli to solve effectively the present problems and ensure the reliability of backcalculation of layer moduli in asphalt pavement.

为此，本项目根据微分拓扑和最优化理论，建立了基于同伦方法的沥青路面模量反算的数学模型和计算方法，并通过选取合理的模量反算目标函数，对大量FWD实测的沥青路面弯沉盆进行了模量反算，从而有效地解决了目前存在的问题，保证了沥青路面模量反算的可靠性。

The results are shown thatthe developed SBS-modified bitumen is excellent in dissolubility and stability, and canbe stored in long term.

评价结果表明，研制的SBS改性沥青产品性质优越，改性沥青体系具有较好的相溶性和稳定性，可以长期贮存；还具有优异的路用性能，即具有良好的高低温性能和抗老化性能，完全能够满足沥青路面对高性能沥青的要求。

The performances of modified asphalt with different contents of Indonesian Buton Rock Asphalt and Esso based dasphalt A-70 are studied with the experiments.

布敦岩沥青是产于印度尼西亚布敦岛的天然岩沥青，由古生代石油渗透到岩层中，经过长期的海底沉积、承受压力和地质变动而形成的沥青岩，其中沥青含量约为20%，其余为石灰岩矿物质。

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。。。。