10 YEARS OF EXPERIENCE IN THE CONTROL OF COMPACTION BY MEANS OF NUCLEAR TECHNIQUES

EXPERIENCIA DE DIEZ ANOS EN EL CONTROL DE COMPACTACION POR EL METODO NUCLEONICO

This article reviews the gravimetric and nuclear methods and equipment used for controlling road structures. Solutions are proposed to problems encountered during the application of nuclear methods with regard to the density measurements of various types of soil, to the nature of the soil (especially clayey or gypsum soil), for moisture content measurements, and to the influence of other layers for determining layer thickness. Research is being conducted on dual gauge measurement methods and energy filters. Results of a comparative study of gravimetric and nuclear methods show that the latter are more economical as they require less labour force on the site, the tests are more rapid, and defects can be detected and corrected almost immediately. Savings can reach between 5 and 15% of the total cost of the structure. Applications to the study of material deposits for roads, airports, earth dams, etc., to the preliminary control of subgrades, to the measurement of the quality of concrete or density of snow, to mines and geophysical prospection for petroleum, etc. are discussed. /TRRL/

  • Availability:
  • Corporate Authors:

    Escuela de Ingenieros de Caminos

    Ciudad Universitaria
    Madrid 3,   Spain 
  • Authors:
    • Garciaer, ARNVM
  • Publication Date: 1970-8

Language

  • Spanish

Media Info

  • Features: Figures; Photos;
  • Pagination: p. 817-832
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 00081639
  • Record Type: Publication
  • Source Agency: Transport and Road Research Laboratory (TRRL)
  • Files: ITRD, TRIS
  • Created Date: Mar 6 1975 12:00AM