The use of spent shale as raw material for lightweight aggregate formulation

This research study attempted to determine the feasibility of using spent shale as raw material for the formulation of lightweight aggregate. Bangkok clay was used to mix with spent shale in a way to retain the plasticity of the mixture. The proportion of spent shale used varied from 10 to 60 per cent by weight. The pellets were in a cylindrical form with 1 cm diameter and length. To obtain lightweight aggregate in this study, the monotube rotary kiln was used to burn the pellets. The burning temperatures varied from 900 degrees celsius to 1200 degrees celsius by having an incremental increase of 50 degrees celsius. The unit weight and rate of water absorption were used as indices in determining the physical change of lightweight aggregate obtained. From the results of this study it can be concluded that mixing of 20 per cent shale with bangkok clay will result in a good raw material to formulate the lightweight aggregate with lower density than 1 gm/cc at burning temperature around 1100 degrees celsius (a).

• Record URL:
  http://arrbknowledge.com
• Authors:
  • Lerdhirunwong, B
• Conference:
  • Australian Road Research Board (ARRB) Conference, 13th, 1986, Adelaide, Australia
• Publication Date: 1986

Language

• English

Media Info

• Pagination: 100-6
• Monograph Title: Study on bitumen with a view to improving road surfacing
• Serial:
  • Volume: 13
  • Issue Number: 3

Subject/Index Terms

• TRT Terms: Aggregates; Developing countries; Pavement components; Shale
• ATRI Terms: Aggregate; Developing countries; Pavement materials; Shale
• Subject Areas: Geotechnology; Highways; Pavements;

Filing Info

• Accession Number: 01427381
• Record Type: Publication
• Source Agency: ARRB
• Files: ATRI
• Created Date: Aug 24 2012 2:16PM