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:
  • Hormigon y Acero
  • Issue Number: 101
  • Publisher: Instituto Eduardo Torroja

Subject/Index Terms

• TRT Terms: Concrete; Field tests; Quality control; Sampling; Statistical quality control; Statistical sampling; Statistics; Strength of materials; Surveillance
• Uncontrolled Terms: Quality
• Old TRIS Terms: In-situ; Insitu methods
• ITRD Terms: 4755: Concrete; 9063: Quality; 6555: Statistics
• Subject Areas: Data and Information Technology; Highways; Materials; Planning and Forecasting; I32: Concrete; I72: Traffic and Transport Planning;

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