Accession Number:

ADA210180

Title:

High-Strain-Rate Behavior of Hydrated Cement Paste

Descriptive Note:

Final rept. Jan 1986-May 1989

Corporate Author:

MARTIN MARIETTA LABS BALTIMORE MD

Report Date:

1989-05-31

Pagination or Media Count:

104.0

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 andor 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.

Subject Categories:

  • Adhesives, Seals and Binders

Distribution Statement:

APPROVED FOR PUBLIC RELEASE