Accelerated Strength Testing by the Warm Water Method


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Title: Accelerated Strength Testing by the Warm Water Method

Author(s): Joseph F. Lamond

Publication: Journal Proceedings

Volume: 76

Issue: 4

Appears on pages(s): 499-512

Keywords: accelerated tests; compressive strength; concretes; quality control.

Date: 4/1/1979

An accelerated strength testing program using the warm water procedure of ASTM C684 was performed by the Corps of Engineers. This program involved concrete mixture proportions fabricated with a variety of materials from throughout the United States and tested at eight different laboratories. The purpose of the program was to evaluate this test method for use in routine quality control of concrete and prediction of potential quality of concrete in the structure including concrete containing pozzolan as a replacement material for portland cement. The test program confirms accelerated strength testing can do everything the 28-day test can do and do it 27 days sooner. The Corps of Engineers is adopting the accelerated test for controls and prediction of strength at later ages in their major Civil Works projects.