Since the introduction of Test 12 to BS1377 1975 (formerly TRRL Report LR 90) for the preparation of specimens for the frost heave test, the vibrating hammer method of compaction has been introduced as Test 14 of BS1377. This test is said to give densities and moisture contents closer to those in the field. It is thought desirable that this test should be used instead of Test 12. To evaluate the effect on frost heave of changing the compaction requirements, four materials--granite, gritstone, flint and a mixture of flint and limestone--were tested. The compaction characteristics of these materials were first obtained as suggested by LR 90 and then also according to the vibrating hammer method. Although incomplete, the results compare the effect of compaction on heave characteristics for a range of materials. /TRRL/

  • Corporate Authors:

    Nottingham University, England

    Department of Civil Engineering
    Nottingham NG9 3FQ,   England 
  • Authors:
    • Burns, J
  • Publication Date: 1977

Media Info

Subject/Index Terms

Filing Info

  • Accession Number: 00173310
  • Record Type: Publication
  • Source Agency: Transport and Road Research Laboratory (TRRL)
  • Report/Paper Numbers: Analytic
  • Files: ITRD, TRIS
  • Created Date: May 3 1978 12:00AM