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:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/00348619
• 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:
  • Revista de Obras Publicas
  • Issue Number: 3064
  • Publisher: Colegio de Ingenieros de Caminos
  • ISSN: 0034-8619

Subject/Index Terms

• TRT Terms: Compaction; Costs; Density; Gravimetric analysis; Measurement; Nuclear engineering; Soils; Thickness; Waterproofing
• Old TRIS Terms: Gravimetric analyses; Nuclear applications
• ITRD Terms: 6160: Back scattering apparatus; 3686: Compaction; 5908: Density; 5920: Moisture content; 6735: Nucleonics; 2950: Subgrade; 5933: Thickness
• Subject Areas: Finance; Geotechnology; Highways;

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