ENGINEERING PROPERTIES OF FRESH AND DECOMPOSED IGNEOUS ROCKS FROM HONG KONG

The influence of degree of decomposition on the strength and elasticity of fresh to highly decomposed igneous rocks in Hong Kong is described and summarized. Assessments of degree of decomposition by rock grade, rock quality designation, apparent porosity, ultra-sonic velocity, and point load index are discussed from the point of view of estimating rock behaviour. For engineering purposes a sufficiently precise measure of decomposition could be based on the point load index, and a sufficiently reliable estimate of elastic modulus could be calculated from the ultra-sonic velocity. (Author/TRRL)

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/00137952
• Corporate Authors:

  Elsevier

  Radarweg 29
  Amsterdam,   Netherlands  1043 NX
• Authors:
  • LUMB, P
• Publication Date: 1983-8

Media Info

• Features: Figures; References;
• Pagination: p. 81-94
• Serial:
  • ENGINEERING GEOLOGY
  • Volume: 19
  • Issue Number: 2
  • Publisher: Elsevier
  • ISSN: 0013-7952

Subject/Index Terms

• TRT Terms: Audio frequency; Classification; Compression; Decomposition; Elasticity (Mechanics); Granite; Igneous rocks; Laboratories; Modulus of elasticity; Porosity; Properties of materials; Rocks; Strength of materials; Tests; Ultrasonic waves; Volcanic rock; Volcanoes
• Geographic Terms: Hong Kong (China)
• Old TRIS Terms: Elastic theory; Point loads
• ITRD Terms: 8513: Classification; 5532: Compression; 4101: Granite; 8131: Hong Kong; 6237: Laboratory (not an organization); 5938: Porosity; 4154: Rock; 5544: Strength (mater); 6255: Test; 4002: Volcanic
• Subject Areas: Geotechnology; Highways; Materials; I43: Rock Mechanics;

Filing Info

• Accession Number: 00380477
• Record Type: Publication
• Source Agency: Transport Research Laboratory
• Files: ITRD, TRIS
• Created Date: Apr 30 1984 12:00AM