Study of Microcracking of Hardened Portland-Cement Grouts Induced by Dynamic Loading,

Abstract

The effect on the degree of microcracking of hardened portland cement grout specimens of the application of dynamic loads of various magnitudes was investigated. The test specimens were cast as 3- by 6-in. cylinders and were dynamically loaded with the MIT-WES, rapid-loading, gas-operated impact machine to approximately 0-, 3000-, 5000-, and 6000-psi total load. Resistance wire strain gages were bonded to the specimens, and a load cell was utilized to obtain stress-strain relations. After the specimens had been loaded, samples from them were photographed and enlargements of the photographs were examined to determine the total microcracking produced by each load. (Author)

Document Details

Document Type
Technical Report
Publication Date
Aug 01, 1965
Accession Number
AD0740280

Entities

People

  • Lucius E. Fouche

Tags

DTIC Thesaurus Topics

  • Cells
  • Dynamic Loads
  • Gages
  • Load Cells
  • Mechanical Properties
  • Microcracking
  • Photographs
  • Photography
  • Physical Properties
  • Portland Cement
  • Resistance
  • Strain Gages
  • Stress Strain Relations
  • Stresses

Fields of Study

  • Materials science

Readers

  • Mechanical Engineering/Mechanics of Materials.
  • Pavement Materials Engineering.