STATISTICAL CONTROL OF THE QUALITY OF CONCRETE

EL CONTROL ESTADISTICO DE LA CALIDAD EN HORMIGONES

Details are given of a method for the systematic control of the strength of concrete on site by means of sampling, and of conditions of acceptance for the batches controlled. The factor used is a statistical function of the lowest arithmetical average 1/x among the results obtained with a number n sample. The statistical variable thus defined is not based on the statistical value; because of that a factor k is applied to the variable. This factor varies with n, X and V, V being the variation coefficient for the original number of samples. The acceptance criterion is very flexible; this permits a certain latitude in the strictness of the inspection as a function of the dimensions of the sample. /TRRL/

  • Corporate Authors:

    Ultimas Noticias de Hormigon Pretensado

    Instituto Eduardo Torroja
    Madrid 16,   Spain 
  • Authors:
    • Verde, A
  • Publication Date: 1971-10-12

Language

  • Spanish

Media Info

  • Features: Figures; Tables;
  • Pagination: p. 133-150
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 00097338
  • Record Type: Publication
  • Source Agency: Transportation & Soil Mechanics Laboratory, Spain
  • Files: ITRD, TRIS
  • Created Date: Sep 30 1975 12:00AM