道路石油沥青技术指标分析Technical index analysis of road petroleum asphaltdoc.docx

1、道路石油沥青技术指标分析Technical index analysis of road petroleum asphaltdoc道路石油沥青技术指标分析（Technical index analysis of road petroleum asphalt）This paper contributed by zhangxin198302.Pdf document may at the WAP end of the browsing experience poor. Suggest you select TXT, or download the source file to the machin

2、e view.First (total 163rd) February 2004 Road EngineeringShanxi Science & Technology of CommunicationsSHANX I SC IENCE GY O F COMM & TECHNOLO UN ICAT I NS ONo. 1. FebAnalysis of road asphalt technical indexYu Wenjing, Zhang Xiaoyan, Kong Fansheng(Shanxi Transportation Research Institute, Shanxi Taiy

3、uan 030006)In recent years, Chinas highway construction as the center (by the end of 2003 the national highway mileage will reach 30 thousand km), to obtain the rapid development of highway construction, highway asphalt demand is increasing year by year, the 2002 national road asphalt dosage is 8 mi

4、llion 200 thousand T, the domestic heavy traffic asphalt asphalt 4 million 600 thousand T, 1 million 400 thousand T, imported asphalt content 2 million 200 thousand T, the 2003 national road asphalt amount will be more than 9 million T. Road asphalt technical requirements of the Ministry of Communic

5、ations the promulgation and implementation of the (hereinafter referred to as the new standard) is to improve the asphalt quality standards for the correct understanding of the new standard of asphalt technical indicators, analysis research is necessary.The quality factors of using 1 decision of roa

6、d asphalt technical indexes of the 1. factors and 1.1 road 1.1 load factorWith the increase of loading the increase of traffic volume and axle load, in order to reduce the pavement fatigue damage of pavement, require the use of reasonable consistency, asphalt material cohesion and better viscoelasti

7、city. In the traditional technical indexes of asphalt, penetration and ductility under different temperature conditions, the wax content project reflects on the adaptability of asphalt load factors. 1. 1.2 temperature factors of asphalt pavement under design load at high temperature, no plastic flow

8、 (upheaval, Che Zhe), low temperature does not produce thermal shrinkage crack and thermal fatigue cracking. In the traditional asphalt technology index, rut index of softening point, viscosity, 60 DEG C through the asphalt asphalt mixture of asphalt properties reflect the requirements of high tempe

9、rature; the asphalt brittle point, wax content, asphalt mixtureReceived date: 2003212201 yuan;Author: Yu Wenjing (1937-), male, Jiangsu Nanjing people, technical adviser, in 1955 graduated from the Nanjing highway engineering school, 1967 graduated from the Xian highway Zhang Xiaoyan (1970-), female

10、, Shanxi Wuzhai, deputy director, senior engineer, in 1992 graduated from the Xian Institute of highway; hole (1977-), male, prosperous Shanxi Jiexiu, assistant engineer, in 2000 graduated from the Xian highway university.1995-2004 Tsinghua Tongfang Optical Disc Co., Ltd. All rights reserved.Abstrac

11、t: road use requirements and the production process of crude oil and bitumen quality is an important factor to determine the technical indexes of asphalt. According to the comparison of test data in China have been carried out, to investigate the differences between the technical index of road aspha

12、lt at home and abroad, analysis of Chinas new road asphalt technical requirements rationality. Keywords: asphalt; technical index;Classification analysis: U 414.75 document code: A article number: 100623528 (2004) 0120001205The low-temperature bending strain index to reflect the requirements of low-

13、temperature performance of asphalt; penetration index P I reflected by the temperature stability of the asphalt material; through the relationship between asphalt grading and climatic zoning reflects changes in temperature range of asphalt technical indicators. 1. 1.3 different types of pavement str

14、ucture, pavement structure factors have different stress state and forming mechanism. With the increase of surface layer mixture design air voids (open graded O GFC design of void ratio is greater than 18%), requirements of asphalt adhesive force (60 C viscosity) stronger, softening point, viscosity

15、 and adhesion of higher. 1.4 factors and 1. water in order to avoid the effect of water damage of asphalt pavement, the pavement should meet the requirements of overall dense water requirements, and the adhesion of asphalt and aggregate grade, mixture strength after immersion and freeze-thaw splitti

16、ng test, immersion rutting test of asphalt film falling index to ensure the water stability of asphalt materials. Aged 1. 1.5 construction and the use of asphalt asphalt heating factors and mixed temperature of mixture and construction of 160 to 165 DEG C, so the technical indexes of asphalt in a se

17、ries of 163 C and H (T FO T) film heating aging characterization of asphalt materials after the possibility of asphalt sample related technology indicators of the 5. The asphalt material used in aging interaction with air, ultraviolet, water, mainly affect the asphalt pavement surface, the tradition

18、al asphalt technical standards are not included in the relevant indicators, the American PG standard column pressure aging (PAV) test project. Suitable for road asphalt 1.2 factors of crude oil refining crude oil quality, usually containing alkyl and ring2?Shanxi traffic science and technology in 20

19、04 first1.3 asphalt production process factors 1. 3.1 distillationIntermediate base crude oil wax content is low, in recent years in China with an annual output of about 160 million T crude oil, crude oil imports of about 40 million T, which made the oil source properties suitable for production of

20、road asphalt as listed in table 1.Table 1 China suitable for road asphalt production of crude oil is mainly the nature of the project density (20 C) g? Cm 3 viscosity (50 C) mm 2? S- 1 m KO H acid G? G - 1 point C char% ash% penetration point C saturates aromatics% asphaltene colloidal wax the conte

21、nt of sulfur content% ammonia content% Karamay Liaohe oilfield (Jiangsu, ur Shanjiasi Bohai Sui (Huan Xiling) red mouth, 36- 1 nine 0.962 0.941 0.975 0.9598 339.65631 area) 653.5543 3.12 4.64 3.61139132176144 7.51 7.04 12.4 8.98 0.024 0.058 0.385 0.019 - 19 - 20 - 12 - 235.3 25.2 37.9 18.7 22.8 21.4

22、4 1.5 0.49 1.84 1.95 1.5 1.42 1.85 2.78 0.24 0.34 0.31 0.13 0.42The chemical components of the appropriate crude oil distillation distillationreduced pressure directly (straight asphalt). Road asphalt production qualified 1. 3.2 oxidation method after distillation residue or soft asphalt, by blowing

23、 air, adjust the asphalt colloid structure and composition, to meet the requirements of technical standards. 1. the 3.3 solvent removal method using light oil asphalt and reducing solvent from the wax content, to produce qualified asphalt.The 1. and 3.4 harmonic methodThrough different crude oil or

24、crude oil processing product deployment, change of asphalt component, which meet the requirements. In the above 4 kinds of production process, the production of a single distillation process of asphalt, the general low cost, stable performance. The main asphalt refinery asphalt in our production pro

25、cess, production capacity and oil conditions as listed in table 2.Heavy traffic asphalt production capacity of T million of crude oil imports 40 crude oil imports 30 crude oil imports 10 in Huanxiling oil mixture of 80 crude oil imports 60 Xinjiang, 30 Xinjiang Changqing Oil No. 0, No. nine and Kara

26、may No. 0 Xinjiang District 130 heavy crude oil 10 LIN-SHANG crude oil 10, oil 25, Jinzhou orimulsion oil Bohai Oil 30, Bohai Orimulsion Oil 30 Bohai 150 Bohai Suizhong Suizhong oil 36- oil 36- 170 Bohai Suizhong 120 Bohai Suizhong oil 36- oil 36- 150565 raw materialsTable 2 the domestic production

27、of heavy traffic asphalt refinery plant in trademark production process of distillation, distillation, oxidation, oxidation of solvent distillation, distillation, oxidation and oxidation distillation distillation, oxidation, solvent distillation, oxidation distillation and distillation, oxidation, o

28、xidation, and solvent distillation, distillation, oxidation and oxidation distillation, oxidation distillation, distillation, oxidation, oxidation, oxidation and oxidation distillation distillationQilu Shengli Refinery of Qilu Petrochemical Industries Co Maoming Petrochemical Co refinery of Nanhai p

29、etrochemical plant in Guangzhou petrochemical plant of Liaohe Petroleum Exploration Bureau of Huanxiling oil chemical plant in the East China Sea Lanzhou Zhenhai Refinery flying Xinjiang Petroleum Management Bureau of Karamay refinery pterosaur Dushanzi refinery refinery of Guangdong petroleum Jinan

30、 Tianshan rich fuel company rich Jiangyin Hing Hing asphalt plant Qinhuangdao petroleum chemical plant deer brand Panjin northern asphalt Co. Ltd., CNOOC Ltd. Qingdao Guangyuanfa thoroughfare asphalt asphalt plant in Taizhou petrochemical plant in Binzhou chemical plant in the total1.4 asphalt modif

31、ication factorsWith the rapid development of the technology of asphalt pavement, in order to meet the needs of heavy load, environmental protection and traffic safety, open graded, semi open gradation asphalt layer, application layer wear, requirements of asphalt has stronger cohesion and adhesion,

32、and have better temperature stability. The asphalt material single has been unable to meet the needs of the development of modified asphalt modified asphalt application generally increased, technical indicators not only increased the adhesion, toughness, elastic recovery test items, softening point,

33、 viscosity and ductility at low temperature of 60 DEG C and other indicators should be a substantial adjustment, heat aging conditions from 163 DEG C 5, h to 185 DEG C, 2.5 h. Chemical composition of bitumen modification effect depends on the matrix asphalt and modifier and compatibility, and related content and