行業(yè)資訊

濟南瀝青混凝土對瀝青有什么要求？

來源：http://apdetong.cn/ 日期：2022-04-11

　　濟南瀝青混凝土是建筑高級瀝青路面的代表性材料，應用范圍還是比較廣的，為了更好的使用它，我們理應多多了解它，那么濟南瀝青混凝土對瀝青有什么要求？

　　Ji 'nan asphalt concrete is the representative material of senior asphalt pavement construction, the application scope is relatively wide, in order to better use it, we should know more about it, so ji 'nan asphalt concrete for asphalt what requirements?

　　附著力。適用于高等級道路、夏季高溫持久、重載交通、停車場等行車速度較慢的路段，特別適用于車輛荷載剪應力大的結構層、稠度高的瀝青應使用；在寒冷的冬季地區(qū)和交通量少的道路上，應使用稠度較低的瀝青。

　　Adhesion. Suitable for high-grade roads, summer high temperature lasting, heavy load traffic, parking lots and other slow road sections, especially suitable for the structural layer of large shear stress of vehicle load, high consistency of asphalt should be used; Asphalt with low consistency should be used in cold winter areas and on roads with little traffic.

　　熱敏性。在日、年溫差較大的地區(qū)，應使用滲透指數(shù)較大的瀝青。高等級道路、夏季長期高溫地區(qū)、車流量大、停車場、信號燈控制的路口、車速較慢的路段或部位，需要使用軟化點高的瀝青；否則，請使用軟化點較低的瀝青。

　　Heat sensitive. In areas with large diurnal and yearly temperature differences, asphalt with large permeability index should be used. High-grade roads, long-term high temperature areas in summer, large traffic flow, parking lots, intersection controlled by signal lights, slow sections or parts, need to use asphalt with high softening point; Otherwise, use asphalt with a low softening point.

　　耐用性。瀝青應具有足夠的抗老化性能，即耐久性，使瀝青路面具有較長的使用壽命。通過沸騰法試驗，測定了瀝青與骨料的附著力，反映了其抗水破壞性。等級越高，附著力越好。

　　Durability. Asphalt should have enough anti-aging performance, that is, durability, so that asphalt pavement has a long service life. The adhesion between asphalt and aggregate was measured by boiling method, which reflected its water resistance. The higher the grade, the better the adhesion.

　　可塑性。當25℃的延展性變?yōu)?0℃的延展性或15℃的延展性時，不同等級的瀝青的延展性明顯不同，這反映了它們的低溫性能。低溫延展性越大，抗裂性越好。在冬季低溫或高低溫差地區(qū)，要求瀝青具有較大的低溫延性。

　　Plasticity. When 25℃ ductility becomes 10℃ ductility or 15℃ ductility, the ductility of different grades of asphalt is significantly different, reflecting their low temperature properties. The higher the low temperature ductility, the better the crack resistance. In winter low temperature or high and low temperature difference area, asphalt is required to have a large low temperature ductility.

　　安全。濟南瀝青混凝土認為應確定瀝青加熱熔化時的安全溫度限值，以保證瀝青的安全使用。通過閃點測試，確定瀝青發(fā)熱點閃火的溫度——閃點，確定其安全使用范圍。瀝青越軟（等級越高），閃點越低。

　　Security. Determine the safe temperature limit for the heating and melting of asphalt to ensure the safe use of asphalt. Through flash point test, determine the temperature of asphalt flash hot spot -- flash point, determine its safe use range. The softer the pitch (higher grade), the lower the flash point.

　　濟南瀝青混凝土對瀝青有什么要求？我們從五個方面來講述了這個問題，相信大家看完以上的講解應該會有新的理解了，如果想了解的更多，就來網(wǎng)站apdetong.cn看看吧。

　　Ji 'nan asphalt concrete for asphalt what requirements? We cover this issue from five aspects, I believe you should have a new understanding after reading the above explanation, if you want to know more, please come to the website apdetong.cn.

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