Simulation of early-age Jointed Plain Concrete Pavement deformation under environmental loading using the Finite Element method

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2007-01-01
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Kim, Sunghwan
Gopalakrishnan, Kasthurirangan
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Ceylan, Halil
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Civil, Construction and Environmental Engineering

The Department of Civil, Construction, and Environmental Engineering seeks to apply knowledge of the laws, forces, and materials of nature to the construction, planning, design, and maintenance of public and private facilities. The Civil Engineering option focuses on transportation systems, bridges, roads, water systems and dams, pollution control, etc. The Construction Engineering option focuses on construction project engineering, design, management, etc.

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The Department of Civil Engineering was founded in 1889. In 1987 it changed its name to the Department of Civil and Construction Engineering. In 2003 it changed its name to the Department of Civil, Construction and Environmental Engineering.

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1889-present

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  • Department of Civil Engineering (1889-1987)
  • Department of Civil and Construction Engineering (1987-2003)
  • Department of Civil, Construction and Environmental Engineering (2003–present)

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The objective of this study was to quantify the early-age Portland Cement Concrete (PCC) slab deformations due to pure environmental loading at critical periods immediately following construction. A newly constructed Jointed Plain Concrete Pavement (JPCP) section on highway US-30 near Marshalltown, Iowa, USA was instrumented to monitor the pavement response to variations in temperature and moisture during the first seven days after construction in the summer of 2005. Temperature and humidity sensors installed within the test sections monitored the variations in temperature and moisture. The PCC slab deformations were measured using the Linear Variable Differential Transducers (LVDTs) installed at corner, edge, and center of the PCC slab. The surface profiles were measured along the diagonal and transverse directions of the slab using an inclinometer-profiler. The measurements revealed the zero-gradient temperature deformation in the form of slab curling due to built-in temperature difference. Two-dimensional (2-D) and three-dimensional (3-D) Finite Element (FE) models were employed to characterize the zero-gradient temperature deformation. Comparisons between the field-measured and the FE-computed slab deformations are presented in this paper.

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This is a manuscript of an article from Advanced Characterisation of Pavement and Soil Engineering Materials - Proceedings of the International Conference on Advanced Characterisation of Pavement and Soil Engineering Materials, 2, pp.1571-1585. Posted with permission.

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Mon Jan 01 00:00:00 UTC 2007