PATH DEPENDENT BIAXIAL COMPRESSIVE TESTING OF AN ALL-LIGHTWEIGHT AGGREGATE CONCRETE

USING 2 IN. CUBICAL SPECIMENS, BIAXIAL COMPRESSION-COMPRESSION STRENGTH ENVELOPES WERE OBTAINED FOR THREE STRENGTHS OF 0.375 IN. (10 MM) MSA ALL-LIGHTWEIGHT AGGREGATE CONCRETE: 2 KSI, 3.5 KSI, AND 5 KSI (140, 245, AND 350 KGF/SQ CM). THE DESIRED STRESS STATE AND THE ELIMINATION OF FRICTION WERE ACHIEVED BY LOADING THE SPECIMENS THROUGH WIRE BRISTLE COMPRESSION PLATENS IN A SPECIALLY DESIGNED TWO-CHANNEL, CLOSED-LOOP, ELECTRO-HYDRAULIC TESTING FACILITY. IN CONTRAST TO A PREVIOUS INVESTIGATION, THE SHAPE OF THE FAILURE ENVELOPE WAS FOUND TO DIFFER FROM THAT FOR REGULAR WEIGHT CONCRETE. FURTHERMORE, AN INVESTIGATION OF THE INFLUENCE OF LOADING PATH SHOWED THAT TWO-STEP SEQUENTIAL LOADINGS RESULTED IN STRENGTHS SIGNIFICANTLY LOWER THAN THOSE OBTAINED BY PROPORTIONAL LOADINGS. /AUTHOR/

• Authors:
  • TAYLOR, M A
  • Jain, A K
• Publication Date: 1972-12

Media Info

• Features: Figures; References; Tables;
• Pagination: p. 758-64
• Serial:
  • Am Concrete Inst Journal & Proceedings
  • Volume: 69
  • Issue Number: 12

Subject/Index Terms

• TRT Terms: Biaxial stress; Compression; Failure; Lightweight concrete; Load tests; Strength of materials; Testing
• Uncontrolled Terms: Biaxial compression
• Subject Areas: Highways; Materials;

Filing Info

• Accession Number: 00214276
• Record Type: Publication
• Files: TRIS
• Created Date: Apr 27 1974 12:00AM