MECHANICAL BEHAVIOR OF BITUMINOUS WATERPROOFING MEMBRANE SYSTEMS

THE MECHANICAL BEHAVIOR OF WATERPROOFING MEMBRANE SYSTEMS COMPOSED OF ONE OR MORE LAYERS OF BITUMINOUS SHEETING FULLY BONDED TOGETHER TO FORM AN INTEGRAL LAYER IS STUDIED AND A THEORY IS EVOLVED WHICH ALLOWS MEMBRANE STRESSES AND STRAINS TO BE CALCULATED AS A FUNCTION OF THE MECHANICAL PROPERTIES OF THE CONSTITUENT MATERIALS AND OF THE ASSOCIATED SUBSTRATE MOVEMENT. ALLOWANCE IS MADE FOR THE VISCO-ELASTIC EFFECTS OF BITUMEN. IT IS CONCLUDED THAT THE ABILITY OF MEMBRANES TO ACCOMMODATE SUBSTRATE MOVEMENT LARGELY DEPENDS ON THE MECHANICAL PROPERTIES OF THE BASE FABRICS USED TO REINFORCE BITUMINOUS SHEETINGS, AND THIS IS CONFIRMED IN CONTROLLED EXPERIMENTAL WORK. THE ORDER OF SUBSTRATE MOVEMENT TOLERATED BY A SINGLE-LAYER FULLY BONDED SYSTEM WAS CALCULATED FOR A NUMBER OF CONDITIONS. THE IMPROVED MECHANICAL PERFORMANCE AFFORDED BY PARTIAL BONDING WAS CONSIDERED TO BE WORTHWHILE. /RRL/A/

• Supplemental Notes:
  • Vol 20, No 1, PP 11-20, 4 FIG, 1 TAB, 9 REF
• Authors:
  • Marijs, P D
  • Bonafont, R L
• Publication Date: 1970-1

Media Info

• Serial:
  • Journal of Applied Chemistry & Biotechnology
  • Publisher: Society of Chemical Technology

Subject/Index Terms

• TRT Terms: Bitumen; Bituminous mixtures; Deformation curve; Motion; Sheathing; Strain (Mechanics); Stresses; Substrates (Waterways); Viscoelasticity
• Uncontrolled Terms: Membranes; Substrates
• Old TRIS Terms: Control conditions; Layered system mechanics; Membranes (Biology); Strains
• Subject Areas: Highways; Materials;

Filing Info

• Accession Number: 00211261
• Record Type: Publication
• Source Agency: Road Research Laboratory /UK
• Files: TRIS
• Created Date: May 3 1971 12:00AM