ISSN 0005-2531 (Print) ISSN 2522-1841 (Online)
INVESTIGATION OF THE PROPERTIES OF BITUMEN MODIFIED BY POLYISOPRENE AND COATINGS ON ITS BASIS
I.H.Movlayev, S.M.Ibragimova, G.M.Mamedova, G.R.Gaziyeva, D.N.Jafarova

 

Special bitumen has been obtained on the basis of mixture qoudron:asphalt = 80:20 with softening temperature tsoft =1100C and its properties have been studied. It has been revealed that coating  on its base  doesnot meet standards  by its main indices. Modification of obtained bitumen  has been carried out by polyisoprene, the properties of unmodified and modified bitumen  and the main indices of the coating obtained on its basis have been studied. Investigation of rheological properties of bitumen qoudron:asphalt = 80:20 and bitumen modified by polyisoprene showed that effective viscosity of    modified bitumen by polyisoprene is higher at various temperatures and pressures than that of  unmodified bitumen with this, effective viscosity of the obtained compositions raises by increasing injected polyisoprene quantity. It has been determined  that coating obtained on the basis of modified bitumen in comparison with known  anti-corrosive coating obtained on the basis of oil bitumen of B-80/30 mark has improved indices of strength, elasticity, adhesion, high water resistance chemical endurance.  The components of the compositions obtained on the basis of bitumen qoudron:asphalt = 80:20 modified by polyisoprene for usinq as  anti- corrosive coatings and water proofing materials are proposed. 

 

Keywords : special bitumen, polyisoprene, modification, rheological properties of coating, elasticity, adhesion, water resistance, chemical endurance, strength
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SUBMITION
THE LAST NUMBER OF THE JOURNAL
№2 2019
CONTENT
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