SYNTHESIS AND STUDY OF EPOXY RESINS BASED ON DIFFERENT BISPHENOLS FOR IMPROVEMENT OF LOCAL ASPHALT | ||||
| ERJ. Engineering Research Journal | ||||
| Article 11, Volume 27, Issue 1, January 2004, Page 91-101 PDF (3.13 MB) | ||||
| Document Type: Original Article | ||||
| DOI: 10.21608/erjm.2004.82615 | ||||
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| Authors | ||||
| E. A. Hassan1; S. A. El-Kholy2; A .M.M. Abd El-Rahman2; I. M. Nassar2 | ||||
| 1Faculty of Science, Al-Azhar University, Nasr City, Cairo, Egypt. | ||||
| 2gyptian Petroleum Research Institute( EPRI), Nasr City, Cairo, Egypt. ABSTRACT | ||||
| Abstract | ||||
| Four types of bisphenols and their respective low molecular weight epoxy resins (I, II, III and IV) were prepared and characterized. Each of the obtained epoxy resins was applied as an additive (together with high temperature hardener) to two types of local asphalt (L and H types) having different compositions. The resulting data of the validity of the obtained mixtures concerning the improved properties of asphalt [penetration, softening point, calculated penetration temperature susceptibility (PTI) and penetration index (PI)] are based upon the effect of the quantity and type of epoxy resin, type of the hardener used and also by comparison with the results obtained in presence of the commercial epoxy resin (V) which has a specified low temperature hardener. The optimum conditions obtained for the formulations which lead to the best properties are taken into consideration in the application of such formulations for the improvement of the asphalt to be used in different purposes. Data obtained revealed that improved asphalt either (H) or (L) type with epoxy III and hardener (1) gave highest values of softening point and penetration grade as compared with unmodified parent asphalt. | ||||
| Keywords | ||||
| Asphalt; Epoxy resins; Penetration temperature susceptibility; penetration | ||||
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