石油沥青

It has introduced the structure and grouping of standards system of bitumen all over the world.

石油沥青产品作为石油和石油化工产品的一个分支，在交通、建筑等领域中起着举足轻重的作用。

The interpolymer products are useful, for example, in applications such as hot melt adhesives, and also for impact, bitumen and asphalt modification, adhesives, dispersions or latexes and fabricated articles such as, but not limited to, foams, films, sheet, moldings, thermoforms, profiles and fibers.

共聚体产物用于，例如应用如热熔粘合剂，也用于冲击，石油沥青和沥青改性，粘合剂，分散体或胶乳和制造制品如，但不限于泡沫，膜，片，模塑件，热成形物，型材和纤维。

After brushing bamboo with slushing compound and melted petroleum asphalt, the percentages of water-absorption of bamboo are 6.1% and 3.8%, respectively, after immersion in watertfor seven days.

用沥青液及熔化的石油沥青分别涂刷竹材，浸水七天后竹材的吸水量各为6.1％及3.8％，若用松香的酒精溶液涂布竹材，其防水效力不大，并且和松香的浓度不成正比的关系。

According to the compound performance index and its service condition, the appropriate proportion of polymer and asphalt was confirmed,and the formulation of the compound for the seamless bridge joint was designed.

在一定范围内，采用不同比例的苯乙烯-丁二烯-苯乙烯嵌段共聚物和丁苯橡胶对石油沥青进行改性，并根据混合物的各项性能指标和混合物的使用条件，确定SBS、SBR与沥青的合适比例，得到无缝式桥梁伸缩缝专用弹塑体配方。

The use of petroleum asphalt, especially the road asphalt and its important roles in national economywere introduced.

介绍了石油沥青，特别是道路沥青的用途及在国民经济中的重要地位。

The modified asphalt is composed of 70-95 percent of petroleum asphalt and 5-30 percent of nonmetal powder of abandoned circuit boards by weight.

改性沥青由重量百分数为70～95％的石油沥青和5～30％的废弃电路板非金属粉组成。

Methods Acute oral toxicity test, subchronic inhalation toxicity test and mutagenicity test were conducted to observe the effects of petroleum asphalt in experimental animals.

方法通过石油沥青急性经口毒性、亚慢性吸入毒性及遗传毒性的实验研究，观察在该实验条件下，石油沥青对受试动物的影响。

Its petroleum asphalt can be burnt to produce coke, which is the fuel source for steelmaking; can be blended with anthracite and liquid asphalt, then used as blast furnace refractory material or as the primary component of electrolyte aluminum anodes, electric steelmaking electrodes, heat exchangers, and for other high temperature resistant uses; and can be used undiluted for paving roads and roofs.

其石油沥青，可以烧死生产焦炭，这是燃料来源，为炼钢；可以结合在一起无烟煤和液态沥青，然后用作高炉耐火材料或作为主要成分的电解质铝阳极，电炉炼钢电极，热交换器，并为其它耐高温用途；可用于纯粹为摊铺路面及屋顶铺平道路。

Used only for China's annual oil bitumen membrane roofing repairs up to 240 million ㎡, petroleum asphalt binder by 27 million tons, repair cost of over 1.2 billion.

我国每年仅用于屋面修缮的石油沥青卷材达2.4亿㎡，石油沥青胶结材达27万吨，修缮费用超过12亿元。

Through some information investigation and pavement crack pouring practices,it is found that as a new material,HR polymer asphalt crack pouring material forming by mixing AH-70# heavy-traffic petroleum asphalt with HR polymer in fixed proportion can by used to repair asphalt pavement cracks,and the effect is good,which has positive significance for prolonging the maintenance period of roads and reducing maintenance costs.

通过一些资料调查及路面灌缝实践发现，将AH-70#重交通石油沥青与HR型聚合物按一定比例掺配合成的HR型聚合物沥青灌缝新材料用于修补沥青路面裂缝，效果较为明显，对延长道路的维护周期、减少养护费用具有积极的意义。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。