|
|
|
Title: DEVELOPMENT OF TEST METHODOLOGY AND MODEL FOR EVALUATION OF CURING EFFECTIVENESS IN CONCRETE PAVEMENT CONSTRUCTION
Accession Number: 00968529
Record Type: Component
Record URL: Availability: Transportation Research Board Business Office 500 Fifth Street, NW Find a library where document is available Abstract: Early-age moisture loss from the surface of a concrete pavement may induce undesirable effects that play a factor in long-term performance. Early-age detrimental behavior such as slab curling, warping, delamination, and even plastic shrinkage cracking are affected by the amount of evaporation and the effectiveness of the curing medium. The rate of evaporation is a key item in the monitoring of the quality of the curing. However, most approaches for this are largely empirical and are useful only under laboratory conditions. The effective curing thickness concept is introduced as a method to evaluate the effectiveness of a curing method. The surface relative humidity has the biggest influence on both the effective curing thickness and the rate of evaporation. Thus, prediction of the rate of evaporation of the water from concrete depends on the relative humidity of the surface and is important for evaluation of the curing method. Existing evaporation models, including the American Concrete Institute nomograph, were evaluated for their capabilities in predicting evaporation from curing concrete. Data from a series of laboratory experiments with a modified version of Penman's evaporation model are also presented.
Supplemental Notes: This paper appears in Transportation Research Record No. 1861, Construction 2003.
Language: English
Corporate Authors: Transportation Research Board 500 Fifth Street, NW Authors: Jeong, J-HZollinger, D GPagination: p. 17-25
Publication Date: 2003
Serial: ISBN: 0309085985
Features: Figures
(11)
; Photos
(3)
; References
(24)
; Tables
(1)
TRT Terms: Uncontrolled Terms: Subject Areas: Construction; Highways; I52: Construction of Pavements and Surfacings
Files: TRIS, TRB, ATRI
Created Date: Jan 9 2004 12:00AM
More Articles from this Serial Issue:
|
