CHEMICAL STABILISATION OF SAND, COMPARATIVE STUDIES ON UREA-FORMALDEHYDE RESINS AS DUNE SAND STABILISER AND EFFECT OF COMPACTION ON STRENGTH (PART IV)

Comparative studies on use of urea-formaldehyde (UF) and its copolymers as dune sand stabiliser are presented. Preparation of resin, influence of acid catalysts, physico-chemical characteristics and unconfined compression strength (UGS) of stabilised sand specimens prepared from these resins have been discussed. The liquid UF resin (urea-formaldehyde, 1:2.25) prepared by authors has specific gravity, 1.2; viscosity 9.9; solid content, 58-60% and good flow characteristics. The maximum strength of 165 kg/sq.cm (density, 1.68 gm/cu.cm of the standard specimen, made by a novel technique using this resin (9%), catalyst (0.3%) and sand (90.7%), is higher than the strengths ranging from 11.3 to 105 kg/sq. cm reported by earlier workers using UF and other modified phenol formaldehyde resins. Effects of compaction on strength has also been studied to optimise the depth of stabilisation required for construction of roads in sandy areas and it is found that standard specimen recorded maximum strength of 820 kg/sq.cm (density, 1.84 gm/cu.cm). (Author/TRRL)

• Corporate Authors:

  Indian Society of Desert Technology

  University of Jodhpur, Faculty of Engineering
  Jodhpur 342003, Rajasthan,   India 
• Authors:
  • Gopal, R
  • Singh, J
  • Das, G
• Publication Date: 1983-7

Media Info

• Features: Figures; References; Tables;
• Pagination: p. 13-19
• Serial:
  • Indian Soc Desert Tech, Univ Cen of Des Stud Trans
  • Volume: 8
  • Issue Number: 2
  • Publisher: Indian Society of Desert Technology

Subject/Index Terms

• TRT Terms: Alternatives analysis; Chemicals; Compaction; Density; Deserts; Dune sands; Formaldehyde; Resins; Road construction; Sand; Soil mechanics; Soil stabilization; Strength of materials; Synthetic resins; Urea
• Uncontrolled Terms: Unconfined compression
• Old TRIS Terms: Chemical treatments; Resin stabilization
• ITRD Terms: 3686: Compaction; 5908: Density; 2502: Desert; 4038: Dune; 3665: Road construction; 4105: Sand; 5755: Soil mechanics; 3689: Soil stabilization; 5544: Strength (mater); 7460: Synthetic resin
• Subject Areas: Geotechnology; Highways; Materials;

Filing Info

• Accession Number: 00394696
• Record Type: Publication
• Source Agency: Transport Research Laboratory
• Files: ITRD, TRIS
• Created Date: Jul 31 1985 12:00AM