天然沥青

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。

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 .

中国南方天然沥青、油气苗分布与找油气关系

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

天然沥青反射率（ROB）作为碳酸盐地层成熟度指标的可靠性是一直在探索而又未完全解决的重要问题。

Abstract The reliability of natural bitumen reflectance ( R OB ) as a maturity index of carbonate strata is always a controversial issue which has not been settled completely .

BMA天然沥青能延长路面正常使用寿命，降低路面维修费用，适用于重载道路、钢桥面铺装、机场道面等场合。

So it can be applied for heavy road . pavement of steel deck and airfield runway etc because of its longer service life and lower maintenance cost .

介绍了一种非水溶性改性沥青防塌剂KFT-1，KFT-1中沥青含量高，油溶性成分高，它以新疆天然沥青为原料，通过阳离子聚合物改性而成。

The anti-collapse additive KFT-1 is mainly composed of natural bitumen , and modified with cationic polymers .

不同成因天然沥青的结构组成特征研究

Study on Structure and Composition of Natural Bitumen in Different Genesis

天然沥青组成、类别及在路用工艺中的适用性

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

天然沥青的改性机理及路用性能研究

Mechanism of natural asphalt 's modification and its performance

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。

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

天然沥青（国产）作改性剂的改性沥青实验研究

Research and Test Nature Pitch ( made in China ) as Reform Pitch

高压对天然沥青结构组成演变的影响

The Influence of High Pressure on the Structural and Compositional Evolution of Natural Bitumen

天然沥青容器，浇铸或模制

Container , asphalt cast or moulded

薄板，屋顶月双面包有或覆盖有天然沥青或类似含地沥青材料

Board , roofing , enveloped in or covered on both sides with asphalt or similar bituminous material

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。

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

通过对大庆热裂化渣油、新疆天然沥青两种典型试样在热转化时中间相转化过程的考察，初步探讨了中间相形成的一般规律。

Thermal pyrolysis of Daqing thermal tar and Xinjiang natural bitumen at various tempertures were studied with the purpose of investigating the mesophase transformation .

北美岩沥青是一种优质的天然沥青材料，与传统的沥青混合料混合使用，可改善沥青路面的使用性能。

UINTAITE Mastic Asphalt is an excellent natural bituminous material , which can improve the performance of asphalt pavement when mixed with conventional asphalt mixture .

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。

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

同时，岩沥青为天然沥青且不含蜡，可有效提高改性沥青的抗老化能力。

In addition , BRA is a kind of nature asphalt and has no wax , so it can effectively increase the anti-aging capacity of the modified asphalt .

数千年前，从地面渗透出的天然沥青将南加州的大型和小型动物困住，经过时间的洗礼将它们保存在化石当中，而现在则成了科学家们研究的标本。

For millennia , natural tar that seeped from the ground in what is now southern California trapped large and small animals , preserving their fossils and providing scientists with a trove of specimens suitable for study .

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。

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 .

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。

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 .

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 .

利用天然岩沥青作改性剂，对AH-70基质沥青进行改性，获得了良好的试验效果。

Modified asphalt was successfully prepared based on AH-70 bitumen with native rock asphalt modifier , and favorable performance was obtained .

如掺天然岩沥青的Sup-13沥青混合料的级配设计。

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

国产天然岩沥青改性沥青混合料路用性能研究

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

天然岩沥青在沥青路面中的适用性研究

Applied Study of Natural Rock Asphalt to Asphalt Pavement

天然岩沥青改性对沥青流变性能的影响粗粒砂子与沥青的混合物

Influence of Rock Asphalt Modified Bitumen on Asphalt Rheological Property coarse aggregate piant mix

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。

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

沥青：天然产生的沥青是含有碳、氢、硫和氮的矿产化合物。人造沥青是蒸溜石油，煤焦油或松脂后的余下渣滓。

Asphaltum : Natural mineral compounds consist of carbon , hydrogen , sulphur and nitrogen or the residue from distillation of petroleum , coal tar or rosin .

用酸性过氧化氢水溶液对原油进行洗涤，通过氧化作用，破坏原油中的天然活性物质沥青质中对表面活性起重要作用的-OH，能破坏微乳体系，有效脱除增溶到胶束中的钙。

In this paper , the crude oil was washed by acidic hydrogen peroxide aqueous solution . The - OH in asphaltene of crude oil , which affected surface activity , was destroyed by oxidation .