STUDIES ON CONTROLLED LOW STRENGTH MORTAR. FINAL REPORT

Soil as a structural backfill is not perfect. It is difficult and costly to place in enclosed spaces, i.e. trenches. Controlled low strength material is a flowing mortar that does not require expensive equipment for placement. It does not have problems with densification during construction, or settlement after construction. There are no standard mix designs and specifications for the state of Indiana. This study looks at those specifications under consideration elsewhere and proposes some mix designs within such specifications within Indiana. The mix designs can be used in the field in any area where soil is used as a structural backfill and where economy, time, and strength are important factors. The mix designs were developed to satisfy three criteria: compressive strength, flowability, and set time. The mixes designs include low strength (100 psi), high strength (1000 psi), air entrained, and light weight (50 pcf) materials.

• Corporate Authors:

  Joint Highway Research Project

  Civil Engineering Building, Purdue University
  West Lafayette, Indiana,   United States  47907
• Authors:
  • Kepler, W F
• Publication Date: 1986-8-27

Media Info

• Features: Appendices; Figures; References; Tables;
• Pagination: 44 p.
• Serial:
  • Purdue University/Indiana State Highway Comm JHRP
  • Publisher: Joint Highway Research Project

Subject/Index Terms

• TRT Terms: Backfill soils; Compressive strength; Fluidity; Mix design; Mortar; Setting (Concrete); Specifications
• Uncontrolled Terms: Flowability; Setting time
• Subject Areas: Geotechnology; Highways; Materials; I32: Concrete;

Filing Info

• Accession Number: 00461693
• Record Type: Publication
• Report/Paper Numbers: JHRP 86/11, Proj No. C-36-61J
• Files: TRIS
• Created Date: Jan 31 1987 12:00AM