In today’s market, it is imperative to be knowledgeable and have an edge over the competition. ACI members have it…they are engaged, informed, and stay up to date by taking advantage of benefits that ACI membership provides them.
Read more about membership
Become an ACI Member
Founded in 1904 and headquartered in Farmington Hills, Michigan, USA, the American Concrete Institute is a leading authority and resource worldwide for the development, dissemination, and adoption of its consensus-based standards, technical resources, educational programs, and proven expertise for individuals and organizations involved in concrete design, construction, and materials, who share a commitment to pursuing the best use of concrete.
ACI World Headquarters
38800 Country Club Dr.
Farmington Hills, MI
ACI Middle East Regional Office
Second Floor, Office # 02.01/07
The Offices 02 Building, One Central
Dubai World Trade Center Complex
Phone: +971.4.516.3208 & 3209
Feedback via Email
Home > Publications > International Concrete Abstracts Portal
The International Concrete Abstracts Portal is an ACI led collaboration with leading technical organizations from within the international concrete industry and offers the most comprehensive collection of published concrete abstracts.
Title: Evaluating Curling Stress of Continuous Reinforced Concrete Pavement
Author(s): Alireza Sarkar and Reza Norouzi
Publication: Structural Journal
Appears on pages(s): 53-62
Keywords: continuous reinforced concrete pavement (CRCP); curling stress; temperature gradient
Abstract:A realistic assessment of the effect of curling stress on long-term performance of continuous reinforced concrete pavement (CRCP) is required in rational design. The main objective of this research is to quantify the thermal behavior of CRCP and the curling deflection for a bus rapid transit (BRT) lane. This study includes a field instrumentation effort with newly built CRCP equipped with temperature sensors and finite element (FE) analysis. Based on this study, the results show the following: 1) the actual temperature distribution across the depth of CRCP is a second-order power function, considering the linear distribution for the calculation of curling stress can lead to an error of approximately 10%; 2) assuming the linear temperature distribution throughout the depth can be correct in the range of temperature differential of +2°C and –2°C; 3) the location of thermal gradient change and the neutral axis of CRCP section in the middle of slab are not the same, which can lead to great interior stress within pavement; 4) the maximum temperature gradient of CRCP during the day was determined to be twice that at night and these values were approximately 25 to 50% less than suggested values by others; and 5) in designing minimum-maintenance CRCP, the combination of curling and loading stresses is necessary.
Click here to become an online Journal subscriber