SURFACING COURSES - POLAND

IN REVIEWING THE RESULTS OF RESEARCH EXECUTED ON PARAFFINOUS BITUMENS THE FOLLOWING CONCLUSIONS HAVE BEEN REACHED: (1) THE PROPERTIES OF PARAFFINOUS BITUMENS DEPEND ON THE TYPES OF PETROLEUM AND THE TECHNOLOGY OF THE MANUFACTURING PLANT. AS IS SEEN FROM THE EXAMPLE OF ROMASCHKINO BITUMENS IT IS POSSIBLE TO OBTAIN FROM CERTAIN PARAFFINOUS PETROLEUMS BY USING A SUITABLE TECHNOLOGY FOR THE PREPARATION OF THE PETROLEUM AND THE PRODUCTION OF BITUMEN--A GOOD QUALITY BITUMEN, IN SPITE OF ITS PARAFFINOUS CHARACTER. TO OBTAIN A SOFT BITUMEN AND OF GOOD QUALITY, THE MEANS OF FLUXING USED IS OF GREAT IMPORTANCE. (2) THE ESSENTIAL FACTOR, WHICH EXERCISES A DECISIVE INFLUENCE ON THE PROPERTIES OF PARAFFINOUS BITUMENS, IS THEIR CHEMICAL STRUCTURE. A HIGH CONTENT OF AROMATIC COMPONENTS ENSURES GOOD QUALITIES IN AGREEMENT WITH THE DEMANDS, SINCE THE PARAFFIN, WHICH APPEARS IN EXCESS, BY ITS AMORPHOUS AND MICROCRYSTALLITE CHARACTER, HAS NO HARMFUL INFLUENCE ON THE PROPERTIES OF THE HIGHWAY BINDER. (3) ON THE CONTRARY A HIGH CONTENT IN NAPHTHENES AND PARAFFIN IN PARAFFINOUS BITUMENS, CONTAINING AN EXCESS OF PARAFFIN, INFLUENCES THE USEFULNESS OF THE LATTER AS A HIGHWAY BINDER, SINCE THE PARAFFIN, WHICH IT CONTAINS, IS HARMFUL TO ITS PROPERTIES BECAUSE OF ITS CRYSTALLINE FORM (COARSE GRAINED CRYSTALS). (4) THE TEST CARRIED OUT ON A SEMI-TECHNICAL BASIS AND THE OBSERVATIONS ON A TECHNICAL BASIS, ON ROMASCHKINO BITUMENS, CONFIRM THE CONCLUSIONS OBTAINED DURING LABORATORY EXPERIMENTS, AS WELL AS THEIR USEFULNESS FOR THE CONSTRUCTION OF HIGHWAY SURFACINGS.

• Supplemental Notes:
  • No Iii-17, PP 6-15, 3 FIG
• Authors:
  • Skalmowski, W
• Publication Date: 1967

Media Info

• Serial:
  • Perm Intl Assoc Road Congresses Proc
  • Publisher: Xiiith Congress, Tokyo

Subject/Index Terms

• TRT Terms: Aromatic hydrocarbons; Asphalt additives; Base course (Pavements); Binders; Bitumen; Chemical composition; Crude oil; Crystallography; Fluxes; Heat flux; Paraffin; Pavements; Surface course (Pavements)
• Old TRIS Terms: Asphalt base crudes; Highway pavement; Paraffin base crudes /petroleum/; Paraffinic component /asphalt/
• Subject Areas: Highways; Materials; Pavements;

Filing Info

• Accession Number: 00210754
• Record Type: Publication
• Files: TRIS
• Created Date: May 13 1994 12:00AM