CRITICAL NORMAL FRACTURE STRAIN OF PLAIN AND STEEL WIRE FIBROUS- REINFORCED CONCRETE

reportActive / Technical Report | Accession Number: AD0695719 | Open PDF

Abstract:

The report presents the results of a series of eighty-one impact tests performed on 5.1 x 88.9-cm 2.0 x 35.0-in. cylindrical test specimens. The cylinders consisted of either plain or steel wire fibrous-reinforced concrete. Basic properties relating to the concrete test specimens used were quantitatively evaluated static ultimate tensile strength and the corresponding ultimate tensile strain static initial Youngs modulus of elasticity static ultimate unconfined compressive strength, specific gravity, mass density seismic velocity dynamic Youngs modulus of elasticity. Histograms for the frequency distributions of basic material properties show variations of these properties within the experiment. The results revealed that the critical normal fracture strain critical value of tensile strain which causes fracture of the material of the materials tested is functionally dependent on the rise times of the straining pulse. The results also showed that the critical normal fracture strain of plain concrete can be increased by the inclusion of the randomly placed steel wire fibre of the type tested.

Author(s):
Birkimer, Donald L.
Author Organization(s):
CONSTRUCTION ENGINEERING RESEARCH LAB (ARMY) CHAMPAIGN IL
Descriptive Note:
Final rept.
Pagination:
0212

Security Markings

DOCUMENT & CONTEXTUAL SUMMARY

Distribution:
Approved For Public Release
Distribution Statement:
Approved For Public Release; Distribution Is Unlimited.

RECORD

Collection: TR
Identifying Numbers
Report Number(s):
M-1
Project Number(s):
DASA-NWER-R13B193
Monitor Series:
DASA
 Subject Terms
Joint Capability Areas:
JCA_7.2.1_Mitigate Lethal Effects; JCA_7.2_Mitigate; JCA_7_Protection; JCA_3.2_Engagement; JCA_3_Force Application; JCA_3.2.1_Kinetic Means; JCA_1.2.6_Concepts; JCA_5_Command and Control; JCA_1.2.5_Lessons Learned; JCA_5.3_Planning; JCA_1.3_Human Capital Management; JCA_1_Force Support; JCA_1.2.7_Experimentation; JCA_1.3.2_Personnel Management; JCA_4.5.4_Requirements Definition; JCA_4.5_Operational Contract Support; JCA_4.6_Engineering; JCA_6_Net Centric; JCA_6.4.1_Secure Information Exchange; JCA_6.1.1_Wired Transmission
Modernization Areas:
Directed Energy; Microelectronics; Fully Networked C3
Communities of Interest:
Weapons Technologies
Descriptor(s):
*FIBERS, *REINFORCED CONCRETE, COMPRESSIVE PROPERTIES, FLEXURAL STRENGTH, FRACTURE(MECHANICS), IMPACT TESTS, MILITARY REQUIREMENTS, MODULUS OF ELASTICITY, REINFORCING MATERIALS, STANDARDS, STEEL, STRAIN(MECHANICS), SYNTHETIC FIBERS, TENSILE PROPERTIES, WIRE
Field(s)/Group(s):
Laminates and Composite Materials, Civil Engineering, Mechanics
Keyword(s):
*FIBER REINFORCED CONCRETE
Report Date:
1969 Oct 01