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Article

Layer Composition of Continuously Reinforced Concrete Pavement Optimized Using a Regression Analysis Method

1
Department of Civil Engineering, Sangmyung University, Cheonan 31066, Korea
2
Department of Civil, Environmental, and Construction Engineering, Texas Tech University, Lubbock, TX 79409, USA
3
Department of Civil, Environmental and Construction Engineering, University of Central Florida, Orlando, FL 32816, USA
*
Author to whom correspondence should be addressed.
Academic Editor: Tatiana García-Segura
Received: 6 March 2021 / Revised: 27 March 2021 / Accepted: 30 March 2021 / Published: 6 April 2021
(This article belongs to the Special Issue Urban Geotechnical Engineering)
A procedure for determining the optimized composition of layer properties for a continuously reinforced concrete pavement (CRCP) system was constructed using field tests, finite element (FE) analysis, and regression analysis methods. The field support characteristics of a rigid pavement system were investigated using a falling weight deflectometer (FWD), dynamic cone penetrometer (DCP), and a static plate load test. The subgrade layer exhibited a more uniform condition than the aggregate base, and the modulus of the subgrade reaction of the aggregate base and subgrade combination (effective k-value) was improved by about 1.5 times by introducing a 2 inch (50.8 mm) asphalt stabilized base (ASB) layer. Thereafter, FE support models describing the actual field conditions were studied. The effects of the thickness of the stabilized base layer, the elastic modulus of the stabilized base material, and the effective k-value on the composite k-value of the support system were identified using a regression analysis method, and the results showed that the variables had a similar effect when determining the composite k-value. Afterward, a procedure for selecting the layer properties for producing a suitable composite k-value was constructed, and we identified that the maximum stress in the concrete slab was induced at different levels, even with identical composite k-values. Lastly, regression relationships were derived to estimate the maximum stress in the concrete slab by considering both the support layer properties and the concrete slab. Subsequently, an algorithm for selecting an optimized layer composition of the CRCP structure was construction considering the economical aspect. View Full-Text
Keywords: continuously reinforced concrete pavement (CRCP); finite element support model; regression analysis method; stabilized base layer; effective k-value; composite k-value; optimized layer composition continuously reinforced concrete pavement (CRCP); finite element support model; regression analysis method; stabilized base layer; effective k-value; composite k-value; optimized layer composition
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MDPI and ACS Style

Cho, B.H.; Won, M.; Nam, B.H. Layer Composition of Continuously Reinforced Concrete Pavement Optimized Using a Regression Analysis Method. Infrastructures 2021, 6, 56. https://0-doi-org.brum.beds.ac.uk/10.3390/infrastructures6040056

AMA Style

Cho BH, Won M, Nam BH. Layer Composition of Continuously Reinforced Concrete Pavement Optimized Using a Regression Analysis Method. Infrastructures. 2021; 6(4):56. https://0-doi-org.brum.beds.ac.uk/10.3390/infrastructures6040056

Chicago/Turabian Style

Cho, Byoung H.; Won, Moon; Nam, Boo H. 2021. "Layer Composition of Continuously Reinforced Concrete Pavement Optimized Using a Regression Analysis Method" Infrastructures 6, no. 4: 56. https://0-doi-org.brum.beds.ac.uk/10.3390/infrastructures6040056

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