natural asphalt

The relationship between distribution of natural asphalt , oil and gas seepage

中国南方天然沥青、油气苗分布与找油气关系

Mechanism of natural asphalt 's modification and its performance

天然沥青的改性机理及路用性能研究

Natural asphalt is a kind of excellent modifier to improve road asphalt .

天然沥青是一种优质的路用沥青改性外掺剂，能有效地改善沥青材料的路用性能。

Composition , Category of Natural Asphalt and Its Technical Applicability in Pavement

天然沥青组成、类别及在路用工艺中的适用性

New Technology for Washing Natural Asphalt from Woollen Cloth

洗净粗纺呢绒沥青点的新工艺

Natural asphalt deterioration with time of burial .

沥青材料随埋地时间的增长而劣化等。

So minerals of natural asphalt had certain catalysis on the second decomposition of tar .

因此，沥青页岩中的矿物质对焦油分解有一定的催化作用。

The result shows that all the natural asphalt spots can be removed by the new technology and with evident benefit .

结果表明，所介绍的新工艺能将沥青点全部去除，经济效果明显。

Owing to the excellent property of domestic natural asphalt , it is necessary to study modified asphalt performance with natural asphalt .

鉴于国产天然沥青的优良特性，用国产天然沥青做道路石油沥青改性剂的研究，显得非常必要。

RS_ ( 2000 ) Anti - track Natural Asphalt Modifier

RS（2000）抗车辙改性沥青

Natural asphalt is a kind of excellent modifier to improve road asphalt , it can effectively improve the performance of road asphalt .

天然岩沥青作为一种石油沥青改性剂，它能有效的改善石油沥青的路用性能。

Due to the great road service performance , TLA has become the most famous natural asphalt in the world with the most widest application and longest history .

特立尼达湖沥青（TLA）是世界上最著名、使用范围最广泛、历史最悠久的天然沥青，它具有较好的路用性能。

The article introduces the theoretical aspects of washing natural asphalt from woollen cloth and the process of using cleaning agent 8204 in light shrinkage machine to remove the natural asphalt spots on flannel and navy cloth .

文章介绍了洗净粗纺呢绒沥青点的机理，以及用8204溶剂型净洗剂在NO61轻型缩呢机上将混纺法兰绒和海军呢上的沥青点去除的试验情况。

It is the rich in content of Asphaltenes and Resin that the natural asphalt can improves the composition and property of the road petroleum asphalt so that the modified asphalt binder and mixture get some good performances .

天然沥青具有高含量的沥青质和胶质，其掺入石油沥青中能够改善基质沥青的组成和结构，从而使改性沥青及其混合料获得良好的路用性能。

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 .

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。

Under the same condition of aggregates and grading , experiment results show that modified asphalt mixtures present some excellent features , such as high-temperature stability , low-temperature stability , and good water-resistant ability due to natural asphalt itself behaves .

试验表明：由于天然沥青的掺入，在矿料、级配类型相同的情况下，改性沥青混合料的高温稳定性、低温稳定性以及水稳定性都得到改善。

Application Technology Study of Natural Shale Asphalt Modified Penetration 70 ~ # Asphalt

岩沥青改性70~沥青混凝土应用技术研究

Applied Study of Natural Rock Asphalt to Asphalt Pavement

天然岩沥青在沥青路面中的适用性研究

A Study on Pavement Performance of Chinese-Made Natural Rock Asphalt Modified Asphalt Mixture

国产天然岩沥青改性沥青混合料路用性能研究

For example , aggregate gradation named as Sup-13 mixture to which natural gilsonite asphalt is added is design .

如掺天然岩沥青的Sup-13沥青混合料的级配设计。

Based on the property of natural materials of asphalt concrete , the optimization design method for mix of impervious structure of pouring asphalt concrete is presented in this paper .

本文针对沥青混凝土原材料的性能特性，探讨了浇筑式沥青混凝土防渗层混合料配合比的设计方法。

This paper correlates the source rocks with biology marks in natural gas formation asphalt by adopting indirect correlation method , recognizing that deep natural gas mainly comes from Jurassic and Denglouku Formations .

本文采用间接对比法，将源岩与天然气储层沥青中的生物标记物进行对比，认为深层天然气主要来自侏罗系和登娄库组地层。

Taking the principle of protecting the environment and changing the offal into useful things , the paper discusses and study the feasibility of fly ash substituting mine powder , machine-made sand and slag-calcium-added substituting natural sand on asphalt mixture .

本课题本着保护环境，变废为宝的原则，探讨研究在沥青混合料中用粉煤灰替代矿粉，机制砂、增钙渣替代天然砂的可行性。

Natural Resources : bauxite , coal , crude oil , iron ore , natural asphalt , calcium , silica , mica , salt , clays .

自然资源：铝矾土、煤、原油、铁砂、天然沥青、石灰、硅石、云母、盐、粘土。