硬质沥青

影响硬质沥青质量的主要原因及改进措施

Main Cause Affecting the Quality of Hard Pitch and Its Improving Measures

介绍了鞍钢化工总厂硬质沥青加料泵皮带调速改为交流变频调速的实际应用过程。

The practice after the feeding pump of hard pitch controlled by belt changed into frequency control of speed in AISC Chemical General Plant is introduced .

结果表明硬质沥青具有比SBS改性沥青更优秀的路用性能，如高温稳定性，耐疲劳性能等。

The results show that the hard asphalt has better pavement performance than SBS modified asphalt and matrix asphalt , such as high temperature stability , fatigue-resistant properties .

硬质沥青制氨新工艺介绍

Introduction to the new ammonia production process from hard bitumen

硬质沥青及其混合料路用性能的试验研究

Pavement Performance Study on the Hard Asphalt and Its Mixture

国产硬质沥青及混合料高温性能研究

High Temperature Performance of Domestic Hard Asphalt and Asphalt Mix

数学模拟硬质沥青气化的气体成分

Gas composition of mathematical simulation for Eureka pitch gasification

硬质沥青用于沥青混凝土的性能研究

Study of hard-grade asphalt mixes performance

硬质沥青具有良好的路用性能，在常温状态下还具有较常见基质沥青好的力学性能、耐疲劳性能和水稳性。

Hard asphalt mixture have well pavement performace , and have better mechanical performance fatigue resistance and water damage resistance .

为了提高沥青路面的高温稳定性，可以采用粘度更高的50硬质沥青作为结合料。

In order to improve high-temperature stability of asphalt pavement , we can use 50 # hard asphalt with higher viscosity as binder .

通过研究表明，硬质沥青是一种适合应用于中下面层以及基层的材料，具有广阔的应用前景。

The study shows that hard asphalt is suitable for the application of mid and below surface , and it has broad application prospects .

从硬质沥青混合料的性能入手，讨论了硬质沥青混合料在夏季炎热地区沥青路面中的应用，并对其施工技术进行了研究。

The applicability and construction technology of hard asphalt mixture is studied beginning with the performance , as well as the application on asphalt pavement during hot summer .

研究发现，硬质沥青混合料在拌合，摊铺，压实时的温度均高于普通沥青，要求在施工时予以特别注意。

Studies showed that hard asphalt mixture need higher temperature than common asphalt mixture when mixing 、 paving 、 and compaction , so special attention is required during construction .

国外广泛应用的硬质沥青，柔性基层这些针对沥青路面破坏现象的有效措施渐渐的被国内研究者熟悉并研究采用。

Hard asphalt and flexible base that widely used at abroad are both effective measures of preventing pavement from damage , and it now has been familiar with by domestic researchers .

国外大量的研究和实践都表明：采用硬质沥青可以提高路面的抗高温车辙能力，延长路面的使用寿命并减薄路面厚度。

Foreign considerable research and practice have shown that : Hard asphalt can be used to improve the pavement rutting resistance , extend the service life and thinning the thickness of road pavement .

国内目前生产的硬质沥青（50号）可应用到实际工程，但还必须认识到国内的硬质沥青生产工艺水平还远远不够，有待改进，以便早日实现硬质沥青的全面推广和应用。

At present , home-made hard asphalt ( 50 # ) could be used to actual project , but wo must have pay more attention to improving the production technology of asphalt , in order to make generally or nationwide applicable .

硬质沥青是一种低标号的沥青，包括各种工艺生产的石油沥青及天然沥青等，该类沥青针人度低，软化点高，粘度大，有良好的高温稳定性。

Hard asphalt is a low grade of asphalt , including a variety of craft production of petroleum asphalt and natural asphalt , such asphalt which has low needle , high softening point and large viscosity , has good high temperature stability .

结果表明：硬质乳化沥青的Han曲线在测试频率和温度范围内不存在温度依赖性且未出现相分离的过程，因此时温等效原则的应用是可行的。

The results indicate that Han curve of this hard bitumen residue were not temperature dependent which means no phase separation occurs during the process ; therefore , time temperature superposition principle is feasible .

在相同的养护制度下，残留物与纯沥青之间LVE范围呈现不同的变化规律。其次，采用Han曲线研究了硬质乳化沥青储存模量和损失模量之间的函数关系。

Besides , the LVE range for the residue and the pure bitumen presents a different variation under the same curing condition . Further , Han curve was used to study the functional relationship between the storage modulus and loss modulus of hard bitumen emulsion .

硬石膏代替石膏生产道路硅酸盐水泥工艺克拉玛依30号、50号硬质道路沥青的性能评价

Production of road Portland cement using anhydrite in stead of gypsum PERFORMANCE EVALUATION OF 30 ~ # AND 50 ~ # HARD PAVING ASPHALTS PRODUCED FROM KARAMAY CRUDE OIL

不同乳化沥青残留物养护过程中的流变性能发展机理并不相同，氧化作用对本研究中硬质乳化沥青残留物流变性能发展的影响效果不明显。

Different mechanism may account for the rheological properties development during curing , and the oxidation effect plays a negligible role in the rheological development of hard bitumen emulsion residue .

采用焦煤、1/3焦煤、硬质煤沥青和木炭4种含碳添加剂，考察了它们对大同煤质压块成型活性炭性能的影响程度.同时介绍了有效利用1/3焦煤的捣固炼焦工艺。

Four carbonaceous additives include coking coal , 1 / 3 coking coal , hard coal-based pitch and charcoal were selected to study their influence on the properties of the agglomerated activated carbon ( AC ) made from Datong bitumite .

硬质石料、优质沥青有助于提高浸水条件下沥青混合料抗车辙性能。

In addition , the high-quality bitumen and hard aggregate can improve the rutting performance of the mixture in water-submerged conditions .