00468687

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http://onlinepubs.trb.org...trr/1987/1121/1121-007.pdf

https://scholar.google.co...ough&publication_year=1987

The effect of rainfall on the performance of continuously reinforced concrete (CRC) pavements in Texas was studied by analyzing the condition survey data on CRC pavements throughout the state. A study of the annual rainfall data within the state of Texas indicated that it varies from 10 to 52 inches. Rigid pavement condition survey data have been colleced for 10 years, beginning in 1974. For the purpose of this study, the data were grouped into districts, and the average performance of pavements in each district was estimated for each survey year (surveys were conducted in 1974, 1978, 1980, 1982 and 1984). The average performance of CRC pavements was determined by adding the number of patches and punchouts in the pavement and estimating the number of failures per mile. The average rate of failures per mile (RFPM) per year was estimated for a period of 10 years for each district and a simple relationship was determined: log (RFPM) = -4.05 + 2.35 log (P) where P is the average annual precipitation in the district. The results of this study indicated that the effect of average annual rainfall on the performance of CRC pavements in Texas is significant. Therefore the existing rigid pavement design procedures in Texas require review and possible modifications to accommodate the effect of this important variable on the performance of CRC pavements. A study of some individual pavement sections was also performed. This study indicated that the initial performance of pavements located in different rainfall areas is practically the same. However, when the pavement starts developing failures (punchouts and patches), the RFPM is affected by the average rainfall of the area. Pavements located in 10-inch rainfall areas generally showed an almost zero rate of failure development, whereas pavements located in 52-inch rainfall areas developed failures at a rate of about one failure per mile per year.

Publication of this paper sponsored by Committee on Strength and Deformation Characteristics of Pavement Sections. Distribution, posting, or copying of this PDF is strictly prohibited without written permission of the Transportation Research Board of the National Academy of Sciences. Unless otherwise indicated, all materials in this PDF are copyrighted by the National Academy of Sciences. Copyright © National Academy of Sciences. All rights reserved

01418084

pp 45-49

1987

Transportation Research Record

66th Annual Meeting of the Transportation Board

0309045010

Print

Figures (6) ; Maps (1) ; References (6) ; Tables (1)

Condition surveys; Continuously reinforced concrete pavements; Failure; Patching; Pavement design; Pavement performance; Rainfall; Rates; Rigid pavements

Punchouts

Texas

Design; Highways; Pavements; I22: Design of Pavements, Railways and Guideways

TRIS, TRB, ATRI

May 31 1988 12:00AM

• AN EVALUATION OF DESIGN HIGH-WATER CLEARANCES FOR PAVEMENTS
• AN EXAMINATION OF ENVIRONMENTAL VERSUS LOAD EFFECTS ON PAVEMENTS
• CHARACTERIZING TEMPERATURE EFFECTS FOR PAVEMENT ANALYSIS AND DESIGN
• ECONOMIC IMPACT OF PAVEMENT SUBSURFACE DRAINAGE
• EFFECT OF MOISTURE ON THE STRUCTURAL PERFORMANCE OF A CRUSHED-LIMESTONE ROAD BASE
• MOISTURE IN PORTLAND CEMENT CONCRETE
• PROCEDURES FOR ESTIMATION OF ASPHALT CONCRETE PAVEMENT MODULI AT IN SITU TEMPERATURES
• STRESS CAUSED BY TEMPERATURE GRADIENT IN PORTLAND CEMENT CONCRETE PAVEMENTS
• TEMPERATURE RESPONSE OF CONCRETE PAVEMENTS
• USE OF OPEN-GRADED, FREE-DRAINING LAYERS IN PAVEMENT SYSTEMS: A NATIONAL SYNTHESIS REPORT