Bituminous binders have been modified by using cocamide diethanolamide.The chemical material used in this study is used for the first-time on the purpose of modification of the bitumen.In addition to the conventional ...Bituminous binders have been modified by using cocamide diethanolamide.The chemical material used in this study is used for the first-time on the purpose of modification of the bitumen.In addition to the conventional bitumen tests(penetration,softening point and ductility tests),adhesion and peeling tests(Vialit,Nicholson and California tests)were carried out on the bituminous binders which are modified with different ratios of cocamide diethanolamide.According to the results of the tests,the most appropriate additive ratio has been determined.Samples containing the reference bituminous binder and the bituminous binder modified with the most appropriate cocamide diethanolamide ratio were prepared using the superpave volumetric mix design method(SuperpaveTM).In accordance with standard method of test for resistance of compacted asphalt mixtures to moisture-induced damage(AASHTO T 283),the moisture susceptibility of prepared samples has been examined.In order to observe the changes in strength due to the temperature difference,prepared samples were subjected to the freeze-thawing test in accordance with standard test method for resistance of concrete to rapid freezing and thawing(ASTM C 666).展开更多
In this study,bituminous binder was modified with Cocamide Diethanolamide chemical,a non-ionic surfactant,and the physical and rheological properties of modified binders were investigated.In addition,Cocamide Diethano...In this study,bituminous binder was modified with Cocamide Diethanolamide chemical,a non-ionic surfactant,and the physical and rheological properties of modified binders were investigated.In addition,Cocamide Diethanolamide has been used for the first time to modify bituminous binder,and this situation makes the study distinctive.Bituminous binder was modified more than once with the chemical by changing modification parameters and using certain additive ratios(1%,3%,and 5%).The effects of different modification parameters and chemical additive on modified samples were investigated with conventional bitumen tests(softening point,penetration,ductility)and Superpave tests(rotational viscometer,rolling thin film oven test,pressure aging vessel,dynamic shear rheometer,bending beam rheometer).In addition,the structural characteristics of the reference binder and modified samples were examined by X-ray diffraction,Fourier Transform Infrared Spectroscopy,scanning electron microscopy,and energy dispersive X-ray spectroscopy.The examinations showed that Cocamide Diethanolamide softens bituminous binder and lowers processing temperatures.In addition,compared to reference binder,rutting resistances of modified bituminous binders decreased with the increase of additive ratio.However,modification with Cocamide Diethanolamide increased the resistance to fatigue cracks and thermal cracks.展开更多
基金Funded by the Suleyman Demirel University Scientific Research Projects Management Unit(No.FYL-2018,6921)。
文摘Bituminous binders have been modified by using cocamide diethanolamide.The chemical material used in this study is used for the first-time on the purpose of modification of the bitumen.In addition to the conventional bitumen tests(penetration,softening point and ductility tests),adhesion and peeling tests(Vialit,Nicholson and California tests)were carried out on the bituminous binders which are modified with different ratios of cocamide diethanolamide.According to the results of the tests,the most appropriate additive ratio has been determined.Samples containing the reference bituminous binder and the bituminous binder modified with the most appropriate cocamide diethanolamide ratio were prepared using the superpave volumetric mix design method(SuperpaveTM).In accordance with standard method of test for resistance of compacted asphalt mixtures to moisture-induced damage(AASHTO T 283),the moisture susceptibility of prepared samples has been examined.In order to observe the changes in strength due to the temperature difference,prepared samples were subjected to the freeze-thawing test in accordance with standard test method for resistance of concrete to rapid freezing and thawing(ASTM C 666).
基金The authors would like to thank for the financial supports by the Suleyman Demirel University Scientific Research Projects Management Unit(No.FYL-2018-6918)。
文摘In this study,bituminous binder was modified with Cocamide Diethanolamide chemical,a non-ionic surfactant,and the physical and rheological properties of modified binders were investigated.In addition,Cocamide Diethanolamide has been used for the first time to modify bituminous binder,and this situation makes the study distinctive.Bituminous binder was modified more than once with the chemical by changing modification parameters and using certain additive ratios(1%,3%,and 5%).The effects of different modification parameters and chemical additive on modified samples were investigated with conventional bitumen tests(softening point,penetration,ductility)and Superpave tests(rotational viscometer,rolling thin film oven test,pressure aging vessel,dynamic shear rheometer,bending beam rheometer).In addition,the structural characteristics of the reference binder and modified samples were examined by X-ray diffraction,Fourier Transform Infrared Spectroscopy,scanning electron microscopy,and energy dispersive X-ray spectroscopy.The examinations showed that Cocamide Diethanolamide softens bituminous binder and lowers processing temperatures.In addition,compared to reference binder,rutting resistances of modified bituminous binders decreased with the increase of additive ratio.However,modification with Cocamide Diethanolamide increased the resistance to fatigue cracks and thermal cracks.
