Title: Core and Cylinder Strengths of Natural and Lightweight Concrete

Author(s): Richard H. Campbell and Robert E. Tobin

Publication: Journal Proceedings

Volume: 64

Issue: 4

Appears on pages(s): 190-195

Keywords: aggregates;compressive strength; concretes; core testing; cylinders; lightweight aggregates; lightweight concretes; testing.

DOI: 10.14359/7555

Date: 4/1/1967

Abstract:
The compressive strength of laboratory cured and field cured cylinders are compared with 4 and 6 in. diameter cores at ages up to 84 days. Nearly 500 samples of natural and lightweight concrete under simulated job conditions showed that all cores at comparable ages tested lower than cylinders.