Title:
Early Strength Gain of Rapid Highway Repairs
Author(s):
D. Whiting, M. Nagi, and P. A. Okamoto
Publication:
Concrete International
Volume:
16
Issue:
8
Appears on pages(s):
28-35
Keywords:
admixtures; concrete pavements; nondestructive tests; repairs; setting; ultrasonic tests; Construction
DOI:
Date:
8/1/1994
Abstract:
Field studies were carried out to evaluate concrete materials and mixtures which show great promise for use in early opening applications of full-depth pavement repairs. Demonstration sites were selected in the states of Georgia, and Ohio. Laboratory concrete batches were used to establish early-age correlations between maturity and compressive strength development in the slabs, and aid in determining time of opening. Predicted strengths were verified by on-site testing of insulated test cylinders, cylinders cured by "temperature-matched curing," and cores removed from the test slabs.