LIME TREATMENT OF CAPPING LAYERS IN ACCORDANCE WITH THE CURRENT SPECIFICATION FOR HIGHWAY WORKS

The paper discusses the effect of mellowing durations on lime treated materials that may be suitable for use in a capping layer. An explanation is given of the need for mellowing and the soil-lime reaction processes of modification and stabilisation is outlined. Current construction methods and operations are considered and details are given of recent research to assess the effectiveness of different mellowing periods and the effect of temperature and mixture content on mellowing. Four soils were tested: Lower Lias; Oxford Clay; London Clay; and Mercia Mudstone (Keuper Marl). Two mixing regimes were used to simulate extreme site conditions. Unsoaked strengths of all materials were investigated. Results showed that, under certain circumstances, prolonged mellowing can be deleterious to the strength gain. For the covering abstract see IRRD 887532.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/isbn/0722725637
• Corporate Authors:

  Thomas Telford Limited

  London,   United Kingdom 
• Authors:
  • HOLT, C C
  • FREER-HEWISH, R J
• Conference:
  • LIME STABILISATION. PROCEEDINGS OF THE SEMINAR HELD AT LOUGHBOROUGH UNIVERSITY, CIVIL AND BUILDING ENGINEERING DEPT ON 25 SEPTEMBER 1996
• Publication Date: 1996

Language

• English

Media Info

• Features: References;
• Pagination: p. 51-61

Subject/Index Terms

• TRT Terms: Base course (Pavements); Calcium oxide; Clay; Conferences; Highways; Soil stabilization; Standards; Strength of materials
• ITRD Terms: 5292: Ageing; 4177: Clay; 8525: Conference; 2755: Highway; 4574: Lime; 2961: Roadbase; 3689: Soil stabilization; 187: Specification (standard); 5544: Strength (mater); 5414: Time
• Subject Areas: Geotechnology; Highways;

Filing Info

• Accession Number: 00735454
• Record Type: Publication
• Source Agency: Transport Research Laboratory
• ISBN: 0-7227-2563-7
• Files: ITRD
• Created Date: Apr 29 1997 12:00AM