沥青

Based on the volume relationship of aggregate, asphalt, air voids V(subscript a and voids in mineral aggregate V(subscript MA in stone mastic asphalt, the relationship between V and asphalt content is discussed and an optimum asphalt content O(subscript AC equation is deduced.

根据沥青马蹄脂碎石混合料中集料、沥青、空隙率与矿料间隙率V(下标 MA之间的体积关系，推导了V与沥青用量之间的关系；论证了V对SMA混合料级配的影响；讨论了V与级配之间的关系。

The article introduces research and application situation of solvent deasphalting-deoiling asphalt gasification-deasphalting oil FCC group technology.

介绍了渣油溶剂脱沥青-脱油沥青气化-脱沥青油催化裂化组合工艺的研究及应用情况。

It has a good blend with asphalt, asphalt oil and flocculants.

&结加牌&公路沥青改性专用橡胶粉与沥青、沥青油及凝聚剂等原料有着性好的共混性能。

The process for producing heavy traffic paving asphalt and polymer modified paving asphalt from Tahe crude oil with high asphaltene content was presented,and the paving performance evaluation of these asphalts was also studied.

提出了以高沥青质的塔河原油生产重交通道路沥青和聚合物改性道路沥青的制备工艺，并对产品进行了路用性能评价。

Buton Rock Asphalt; mineral element ; group analysis of asphalt ; bituminous mixtures ; performance

布敦岩沥青；矿物元素；沥青组分分析；沥青混合料；性能

So because of that, they need to take that bitumen through one more process so that it can be refined, and they take it through a process that will transform it to what's called synthetic crude oil or synthesised bitumen.

正因为如此，他们就需要让这些沥青再经过一道加工，这样才适合提炼。经过这道工序后，沥青就转变成了合成原油，或者叫合成沥青。

In order to improve the low temperature performance of modified asphalt and mixture of bridge expansion joint s,and put it into use successfully in small and middle span bridges expansion joints in low temperature areas,authors modify the MEIJIA materials by adding thermoplastic elastomer and rubber.

为改善改性沥青桥梁伸缩缝材料的低温性能，使其在寒冷地区中小跨径桥梁上获得成功应用，通过添加热塑性橡胶类改性剂和橡胶类改性剂，对美佳改性沥青结合料进行二次改性，并通过对改性前后结合料和混合料低温性能的试验对比分析，重点研究了伸缩缝用改性沥青结合料和混合料的低温性能，通过实桥伸缩缝验证了研究成果的可行性。

Rut formation mechanism and classification of 1 track of the generation mechanism Asphalt Concrete Pavement open traffic after the traffic load under repeated, the formation of track can be divided into three phases:(1) the initial stage of the compaction process: by the RCC, high temperature and in a semi-flowing state of asphalt and asphalt cement with slag was composed of mineral aggregate into between the aggregate at the same time was a strong line up has a certain frame structure.

车辙产生机理及分类 1车辙的产生机理沥青混凝土路面开放交通之后，在行车荷载反复作用下，车辙的形成可分为三个阶段：（1）开始阶段的压密过程：经碾压，高温下处于半流动状态的沥青及沥青与矿粉组成的胶浆被挤进矿料之间，同时集料被强力排成具有一定骨架的结构。

But the research on the low-temperature cracking is still immature up to now, which can justify the absence of related indices of low-temperature cracking of all AC pavement design methods.

但是，从查阅的文献可以看出，对于沥青路面产生低温开裂（包括一次性大幅降温引起的收缩开裂和温度疲劳开裂）的机理，人们的认识是一致的；但是，对于沥青路面低温开裂等问题的研究至今仍不够成熟，世界各国的沥青路面设计方法中均未引入低温开裂的有关指标就说明了这一点。

As can be seen from the literature which I have consulted, universal agreements has been reached as to the mechanism of low-temperature cracking of AC pavement (including contracting cracking cause by one substantial drop in temperature and thermal fatigue cracking). But the research on the low-temperature cracking is still immature up to now, which can justify the absence of related indices of low-temperature cracking of all AC pavement design methods.

但是，从查阅的文献可以看出，对于沥青路面产生低温开裂（包括一次性大幅降温引起的收缩开裂和温度疲劳开裂）的机理，人们的认识是一致的；但是，对于沥青路面低温开裂等问题的研究至今仍不够成熟，世界各国的沥青路面设计方法中均未引入低温开裂的有关指标就说明了这一点。

I can not make it blossom and suits me

我不能让树为我开花

When temperatures are above approximately 80 °C discolouration of the raceways or rolling elements is a frequent feature.

当温度高于 80 °C 左右时，滚道或滚动元件褪色是很常见的特征。