High-Strain-Rate Behavior of Hydrated Cement Paste

Abstract

Concrete paste and mortar were studied at intermediate to high strain-rates and peak pressures up to 150 kbar,to determine how the microstructure responded to dynamic loading. Intermediate response was primarily brittle failure,while high strain-rate (shock) loads induced micro cracking, particle size reduction, lattice distortion and alteration and/or elimination of porosity. Effects were isolated by comparing explosively-loaded specimens with unshocked reference materials, using X-ray diffraction, scanning electron microscopy, and mercury porosimetry. Cement microstructure; Dynamic loading; Shock effects; Concrete.

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Document Details

Document Type
Technical Report
Publication Date
May 31, 1989
Accession Number
ADA210180

Entities

People

  • A. Ritter
  • D. Barker
  • G. Childs
  • K. Bridger
  • S. Winzer

Organizations

  • Martin Marietta

Tags

Communities of Interest

  • Air Platforms
  • Weapons Technologies

DTIC Thesaurus Topics

  • Air Force
  • Composite Materials
  • Diffraction
  • Electron Microscopy
  • Equations Of State
  • Explosive Charges
  • Explosives
  • Material Degradation Processes
  • Materials
  • Materials Laboratories
  • Materials Science
  • Mechanical Properties
  • Mechanics
  • Microscopy
  • Particle Size
  • Plastic Explosives
  • Scanning Electron Microscopy

Fields of Study

  • Materials science

Readers

  • Mechanical Engineering/Mechanics of Materials.
  • Pavement Materials Engineering.
  • Powder metallurgy of Titanium alloys.

Technology Areas

  • Microelectronics