基于PG技術(shù)的黑龍江省道路瀝青性能評定
發(fā)布時間:2018-07-04 21:45
本文選題:瀝青路面 + 瀝青膠結(jié)料; 參考:《東北林業(yè)大學》2014年碩士論文
【摘要】:隨著我國經(jīng)濟建設的發(fā)展,交通運輸?shù)玫搅搜该桶l(fā)展,交通量的不斷增加對高等級公路的路用性能提出了較高的要求。黑龍江省夏季比較炎熱冬季又很寒冷,黑龍江省高等級公路瀝青路面高溫車轍和低溫開裂現(xiàn)象的同時存在對路面性能帶來很大的問題,嚴重影響行車條件和路面質(zhì)量。因此,采用PG等級新技術(shù)評價黑龍江省瀝青路用性能,從而解決黑龍江省瀝青路面(材料)高溫車轍和低溫開裂等問題。根據(jù)黑龍江省的氣候特點,對黑龍江省氣候初步分為三個區(qū)。觀測各區(qū)代表路段空氣溫度和路面溫度,分析得出空氣與路面溫度之間的換算公式。進而根據(jù)黑龍江省歷年氣象資料經(jīng)過溫度換算公式換算成路面溫度,重新得出了黑龍江省瀝青路面三個PG分區(qū)。分別為一區(qū)PG52-46,二區(qū)為PG58-40,三區(qū)為PG58-34。確定了黑龍江省道路瀝青的PG技術(shù)標準以及PG技術(shù)標準的使用依據(jù)。 根據(jù)PG分區(qū)和PG技術(shù)標準對黑龍江省常用道路瀝青進行性能評定。經(jīng)調(diào)查黑龍江省常用的道路瀝青為90號基質(zhì)瀝青和SBS改性瀝青。收集黑龍江省常用瀝青,根據(jù)瀝青三大指標和感溫性指標針入度指數(shù),將收集的瀝青細分為三種基質(zhì)90號瀝青和三種改性瀝青。分析結(jié)果為六種瀝青高溫指標均滿足黑龍江省瀝青PG分區(qū)基本要求,而低溫不能滿足瀝青PG分區(qū)要求,為進一步研究提供了良好基礎。
[Abstract]:With the development of China's economic construction, traffic and transportation have developed rapidly. The increasing traffic volume has put forward higher requirements for the performance of high grade highways. In Heilongjiang, the hot winter is very cold in summer, and the high temperature rutting and low temperature cracking of high grade highway asphalt pavement in Heilongjiang province exist simultaneously to the pavement nature. It can bring a lot of problems and seriously affect the driving conditions and the quality of the road. Therefore, the new technology of PG grade is used to evaluate the performance of the asphalt road in Heilongjiang Province, so as to solve the problems of high temperature rutting and low temperature cracking of the asphalt pavement (material) in Heilongjiang province. According to the climate special point of Heilongjiang Province, the initial climate of Heilongjiang province is divided into three areas. The region represents the air temperature and pavement temperature, and the conversion formula between air and pavement temperature is analyzed. Then, according to the temperature conversion formula of meteorological data in Heilongjiang Province, three PG zoning of Heilongjiang asphalt pavement are re obtained. It is a region PG52-46, the two area is PG58-40, and the three area is PG58-34.. The PG technical standard of Heilongjiang road asphalt and the basis of PG technical standard are determined.
The performance evaluation of common road bitumen in Heilongjiang province is evaluated according to the PG zoning and PG technical standards. The common road bitumen in Heilongjiang province is 90 matrix asphalt and SBS modified bitumen. The common asphalt in Heilongjiang province is collected. According to the three major index of asphalt and the needle penetration index of the temperature sensitivity index, the asphalt is divided into three kinds of matrix 90. Asphalt and three kinds of modified bitumen. The analysis results show that six kinds of asphalt high temperature indexes meet the basic requirements of the PG zoning in Heilongjiang Province, and the low temperature can not meet the requirements of the asphalt PG zoning, which provides a good basis for further research.
【學位授予單位】:東北林業(yè)大學
【學位級別】:碩士
【學位授予年份】:2014
【分類號】:U416.217;U414
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