Corps of Engineers Concrete Quality Monitor: Operations Guide.

Abstract

This report describes how to set up and use the Corps of Engineers Concrete Quality Monitor (CQM), a system for determining the water and cement content of fresh concrete. The CQM system makes it possible to judge the quality of concrete as it is being placed, thereby helping avoid the high cost of replacing defective concrete. The report lists equipment, reagent, and calibration requirements, and tells how to conduct the test. The results of validation tests indicate: (1) the CQM system is as accurate as the previously developed Kelly-Vail (KV) and CERL/KV methods; and (2) that CQM water/cement ratios can be used to estimate both compressive and flexural strengths.

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Document Details

Document Type
Technical Report
Publication Date
May 01, 1981
Accession Number
ADA102753

Entities

People

  • Paul A. Howdyshell

Organizations

  • Construction Engineering Research Laboratory

Tags

Communities of Interest

  • Energy and Power Technologies
  • Ground and Sea Platforms
  • Weapons Technologies

DTIC Thesaurus Topics

  • Accuracy
  • Buffers (Chemistry)
  • Complexometric Indicators
  • Compressive Strength
  • Construction
  • Engineering
  • Field Tests
  • Flexural Strength
  • Laboratory Equipment
  • Materials
  • Military Facilities
  • Mixing
  • Nitric Acid
  • Standards
  • Test And Evaluation
  • Test Methods
  • Transportation

Readers

  • Instructional Design and Training Evaluation.
  • Pavement Materials Engineering.