Cement and lime stabilisation of Melbourne pavement subgrade soils
For the three general groups of weak pavement subgrade soils commonly encountered in Melbourne, cement and lime can be shown in the laboratory to increase their CBR and indirect tensile strength at the field moisture content to over 40 percent and 40 kpa respectively. Five trial pavement sections were then designed using stabilised sub- bases, the cement and lime percentage being based on the laboratory testing at the likely field moisture content just prior to stabilisation. Field monitoring of two of these trial pavement areas during and after construction has supported strongly the incorporation of the stabilised subbase as a structural component of the pavement. Finally, mcdowell's (1972) pavement design procedure incorporating a stabilised subbase has been simplified to two design charts. These charts require that the stabilised layer must have a CBR and indirect tensile strength greater than 40 percent and 40 kpa respectively. To get these large soil strength increases by stabilisation it will be necessary to use from 3 to 5 percent cement and lime in clayey soils.
-
Authors:
- Holland, J E
- Griffin, C
- Conference:
- Publication Date: 1980
Language
- English
Media Info
- Pagination: 1.191-5
- Monograph Title: Third Australia - New Zealand conference on geomechanics, Wellington, may 12-16, 1980. volume 1
-
Serial:
- Volume: 6
- Issue Number: 1(G),PART1
Subject/Index Terms
- TRT Terms: Calcium oxide; California bearing ratio; Cement; Durability; Field tests; Laboratory tests; Moisture content; Pavement design; Soil stabilization; Subgrade (Pavements)
- ATRI Terms: California bearing ratio; Cement; Durability; Field test; Laboratory test; Lime; Moisture content; Pavement design; Soil stabilization; Subgrade
- Subject Areas: Geotechnology; Highways; Pavements;
Filing Info
- Accession Number: 01438127
- Record Type: Publication
- Source Agency: ARRB
- Files: ATRI
- Created Date: Aug 24 2012 9:23PM