乳化沥青在道路养护中的应用.rar

乳化沥青在道路养护中的应用
【摘 要】该文详细论述了应用乳化沥青进行路面养护及发展情况，举例说明了乳液的生产情况、乳液的配方、乳液的各种撒布和乳液在道路养护中的应用情况。
【关键词】乳化沥青 道路养护 应用
１  乳化沥青
    乳化沥青是由两种互不相溶的物质——沥青和水组成的混合物。其主要特性表现为它的储存稳定性、在混合过程中设稳定性、表面处治和粘度特性及养护速度。在这些特性中有许多是随着微粒尺寸和微粒在乳液中的分布情况而起作用的。该变化是一种随沥青型号、级配乳液生产所使用的设备和化学试剂的使用稳定性而变化设。
    乳液的颗粒尺寸大小是比较重要的参数，因为粒径变得越单一、分散，乳液的粘度越好，破乳率和粘结性能也越合适。然而这也限制了乳液中的沥青含量，并且能够影响养护速度，在一般情况下，通过VSS发现颗粒直径在1～５μｍ范围内时具有最好的总体特性。
    沥青的组成和化学特性都很复杂。具有较高的极性（偏光性）和较高的芳香族沥青，通常较容易乳化。使用添加剂可以用来提高乳化作用，一般来讲，高针入度的沥青比低针入度的沥青容易乳化。
    乳化沥青中化学制品的选择依赖于道路的撒布情况，阴离子乳化剂和阳离子乳化剂两者都依赖于盐的碳氢化合物的长链，这可能是石油中发现的合成脂肪酸类的转生物、多脂肪酸或木材纸浆中的木质素的混合物。
    一般乳液是通过设备和配方来控制掺量。采用合适的乳化剂、正确的控制乳化剂效果的乳液配方，对于生产出满足需要设乳液是至关重要的。　
２ 乳化沥青的优点和经济性　
２．1 节能
    稀释沥青中的煤油或汽油含量可以达到５０％，而乳化沥青中则只含０～２％。所以，这是一项在白色燃料生产利用方面具有重要价值的节约行为，仅仅依靠增加轻制油溶剂来减少沥青的粘度标准，沥青就能够被浇灌和撒布，并希望使用后的轻
Emulsified asphalt in road maintenance application
Abstract This paper discusses in detail the application of emulsified asphalt for road maintenance and development, examples of production of emulsion, emulsion formulations, latex emulsions in a variety of spreading and application of the Road Maintenance.
Key words application of emulsified asphalt road maintenance
1 emulsified asphalt
    Emulsified asphalt is composed of two immiscible substances - a mixture composed of asphalt and water. The main characteristics of the performance of its storage stability, set up in the mixing process stability, viscosity, surface characteristics and conservation of Treatment and speed. Many of these features, with the particle size and particle distribution in the emulsion while at work. The change is a model with the asphalt, grading emulsion production equipment and chemical reagents used in the use of stability and change in design.
    Emulsion particle size is more important parameter, because the diameter becomes more homogeneous dispersion, the better the emulsion viscosity, emulsion breaking rate, and bonding properties of the more appropriate. However, this also limits the asphalt emulsion content, and can affect the conservation rate, in general, through the VSS was found in 1 ~ 5μm particle size range has the best overall characteristics of the time.
    The composition and chemical properties of asphalt are very complex. High polarity (polarity) and higher aromatic asphalt, is usually easier to emulsify. Use of additives can be used to improve the emulsion, generally speaking, the high penetration of the asphalt than the low penetration of emulsified asphalt is easy.
    Emulsified asphalt in the choice of chemicals depends on the path of the spreading conditions, anionic emulsifier and cationic emulsifier both dependent on the salt of long chain hydrocarbons, which may be synthetic oil fatty acids found in the Zhuan biological, and more fatty acids or lignin in wood pulp mixture.
    Through the equipment and the general emulsion formulations to control content. Use of appropriate emulsifiers, emulsifier effect proper control of the emulsion formulation, designed to meet the needs for the production of emulsions is critical.
2 emulsified asphalt the advantages and economy
2.1 Energy
    Diluted bitumen content in the kerosene or gasoline up to 50% emulsified asphalt containing only 0 to 2%. So, this is a white fuel production in the use of valuable savings behavior, the system alone to increase light oil solvent to reduce the viscosity of standard asphalt, asphalt can be watered and spreading, and want to use light after