Title:
Does Core Size Affect Strength Testing?
Author(s):
Ahmed E. Ahmed
Publication:
Concrete International
Volume:
21
Issue:
8
Appears on pages(s):
35-39
Keywords:
acceptability; compressive strength; core size; curing; cylinders
DOI:
Date:
8/1/1999
Abstract:
This article presents the results of an experimental investigation on the effect of core size on the compressive strength of core. The size of a core was demonstrated to have a significant effect on the strength of the core, with larger cores testing at higher compressive strengths. The results of tests on cores of different sizes obtained from slabs, columns, and beams showed that the 100 x 200 mm core may be considered as the most suitable core size. Based on the results, equations relating the strength of cores to that of standard cylinders are proposed.