Lessons Learned in Laboratory and Field Evaluation of Accelerated Strength Tests for Quality Control of Concrete Pavements

by Jeffrey P. Armstrong, US Army Engineer Waterways, Experiment Station, United States,



Document Type: Proceeding Paper

Part of: Structural Materials

Abstract:

This paper describes the results of an accelerated strength testing program performed to evaluate flexural strength potential at 28- and 90-days. Based upon a literature review of previous work, an accelerated curing method similar to ASTM C 684, Procedure A (warm water method used for accelerated compressive strength), was identified as having the most promise. A comprehensive laboratory study was performed using mixture proportions with three different water cement ratios for a broad range of concrete strengths. The warm water curing method was applied to flexural, splitting tensile, and compressive strength specimens by using a water trough and industrial water heater with a circulating pump in a constant temperature room.

Subject Headings: Concrete pavements | Compressive strength | Strength of materials | Water quality | Water circulation | Hydration | Flexural strength

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