SYNTHESIS AND EVALUATION OF NOVEL BITUMINOUS MATERIALS FOR USING IT IN CONSTRUCTION APPLICATIONS
ELKADY, G., EL-SHAFIE, M., FAREED, U., ELNAGGAR, E., SALEH, A., SHOHIDE, M. (2013). SYNTHESIS AND EVALUATION OF NOVEL BITUMINOUS MATERIALS FOR USING IT IN CONSTRUCTION APPLICATIONS. EKB Journal Management System, 24(Issue 2-A), 149-161. doi: 10.21608/absb.2013.6414
G. M. ELKADY; M. EL-SHAFIE; USAMA K. FAREED; ELSAYED M. ELNAGGAR; A. M. SALEH; MOSTAFA A. SHOHIDE. "SYNTHESIS AND EVALUATION OF NOVEL BITUMINOUS MATERIALS FOR USING IT IN CONSTRUCTION APPLICATIONS". EKB Journal Management System, 24, Issue 2-A, 2013, 149-161. doi: 10.21608/absb.2013.6414
ELKADY, G., EL-SHAFIE, M., FAREED, U., ELNAGGAR, E., SALEH, A., SHOHIDE, M. (2013). 'SYNTHESIS AND EVALUATION OF NOVEL BITUMINOUS MATERIALS FOR USING IT IN CONSTRUCTION APPLICATIONS', EKB Journal Management System, 24(Issue 2-A), pp. 149-161. doi: 10.21608/absb.2013.6414
ELKADY, G., EL-SHAFIE, M., FAREED, U., ELNAGGAR, E., SALEH, A., SHOHIDE, M. SYNTHESIS AND EVALUATION OF NOVEL BITUMINOUS MATERIALS FOR USING IT IN CONSTRUCTION APPLICATIONS. EKB Journal Management System, 2013; 24(Issue 2-A): 149-161. doi: 10.21608/absb.2013.6414

SYNTHESIS AND EVALUATION OF NOVEL BITUMINOUS MATERIALS FOR USING IT IN CONSTRUCTION APPLICATIONS

Al-Azhar Bulletin of Science
Article 11, Volume 24, Issue 2-A, December 2013, Page 149-161  XML PDF (513.24 K)
Document Type: Original Article
DOI: 10.21608/absb.2013.6414
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Authors
G. M. ELKADY* 1; M. EL-SHAFIE2; USAMA K. FAREED2; ELSAYED M. ELNAGGAR1; A. M. SALEH2; MOSTAFA A. SHOHIDE3
1Chemistry department, Faculty of science, Azhar University, Cairo, Egypt
2Egyptian petroleum Research Institute (EPRI), Petroleum Applications Department, Cairo, Egypt.
3Chemistry department, Faculty of science, Azhar University, Assiut , Egypt
Abstract
Recently, the application of asphalt in coating purposes presented in different ways. On the other hand polymers are used to improve the properties of asphalt to use in coating purpose. Although asphalt has low cost, high cohesive nature, rheological properties and  high thermal resistance but it is not practically used in coating, this because the long curing time of asphalt on the surface of the substrate which Inappropriate industrially, also asphalt need to additives to improve resistance to chemicals. So the aim of this research is to use polyurethane to improve asphalt properties to produce low cast, high qualified asphaltic materials for coating application. To achieve this aim, after characterization of raw materials by FT-IR for both asphalt and polyol (caster oil), determination of OH number for caster oil, caster oil has mixed with asphalt of type 60/70 in different percentages as 5, 10, 15, 20&25 % by the total weight of mixture. After determining the OH number, these samples act as polyol to prepare asphalt-PUR materials with different ratios of isocyanate material (MDI) to polyol material (caster oil). The ratios were (1.1:1, 1.2:1, 1.3:1, 1.4:1). After adding the equivalent amounts of MDI, different samples of asphalt-polyurethane coating materials were obtained. These samples were applied as coating materials on the surface of carbon steel, and then visually, mechanically, chemically tested. The results revealed that the 1.3:1 NCO/OH is the best ratio.
Keywords
Asphalt; polyurethane; polymer modified asphalt; asphalt polyurethane coating
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