An Overview of Jointed Plain Concrete Pavement Aggregate Proportioning Enhancement

Hossein Khazaei*, P. Sravana **
*-** Department of Civil Engineering, Jawaharlal Nehru Technological University, Hyderabad, Telangana, India.
Periodicity:June - August'2020
DOI : https://doi.org/10.26634/jce.10.3.17579

Abstract

Most of the specifications restricted the maximum nominal size of coarse aggregate up to 25 mm for Jointed Plain Concrete Pavement, while this maximum nominal size of coarse aggregate can be increased up to 31 mm by considering certain steps. These recommendations might contain amendments to the selection of the maximum nominal size and combined aggregate gradation constraint to enhance and improve the quality of the concrete pavement criteria. In the present study, two similar concrete mix designs with a maximum nominal size of 25 mm (PQC-20) in accordance with the Indian specifications and proposed samples with a nominal size of 38 mm (PQC- 40) have been prepared. The effect of increasing the maximum nominal size of coarse aggregates and change of combined gradation limit on air voids, packing density, compressive, flexural strength and the initial cost of the mixes were investigated.

Keywords

Aggregates Limitation, Maximum Nominal Size, Maximum Density, Power Chart, Cost Effect.

How to Cite this Article?

Khazaei, H., and Sravana, P. (2020). An Overview of Jointed Plain Concrete Pavement Aggregate Proportioning Enhancement. i-manager's Journal on Civil Engineering, 10(3), 12-20. https://doi.org/10.26634/jce.10.3.17579

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