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The behavior of permeable interlocking concrete pavement under different rainfall intensities and design conditions.
- Source :
-
International Journal of Pavement Engineering . 2023, Vol. 24 Issue 2, p1-20. 20p. - Publication Year :
- 2023
-
Abstract
- This study investigated the behaviour of permeable interlocking concrete pavement (PICP) in terms of water infiltration volume, surface runoff volume, and load resistance, using a specific lab apparatus, designed and manufactured as a rainfall simulator. The connecting pattern of the surface blocks is a stretcher bond pattern with a joint spacing of (5 and 10 mm) between the block pavers to be filled with a small-sized open-graded aggregate to finalise the permeable surface of joints. The adopted pattern has been examined under three rainfall intensities of (20, 40, and 60 l/min), four longitudinal slopes (0, 2, 4, and 6%), and three transverse slopes (0, 2, and 4%). The results showed that at high rainfall intensities (60 l/min), high longitudinal slopes (6%), and high transverse slopes (4%), the stretcher-bonded PICP with 5 mm spacing between the blocks infiltrates less water than the one with 10 mm. Furthermore, PICP with 5 mm spacing has higher surface runoff than PICP with 10 mm spacing at high rainfall intensities (60 l/min), high longitudinal slopes (6%), and all transverse slope percentages (0, 2, and 4%). In addition, the load resistance of stretcher-bonded PICP with 5 mm spacing between the blocks is higher than that of 10 mm at all the subjected loads in the load-deflection test. Despite the shown differences between both types of PICP, they are strongly recommended as an alternative choice for ordinary dense-graded pavement. [ABSTRACT FROM AUTHOR]
- Subjects :
- *RAINFALL simulators
*CONCRETE pavements
*RUNOFF
Subjects
Details
- Language :
- English
- ISSN :
- 10298436
- Volume :
- 24
- Issue :
- 2
- Database :
- Academic Search Index
- Journal :
- International Journal of Pavement Engineering
- Publication Type :
- Academic Journal
- Accession number :
- 174878543
- Full Text :
- https://doi.org/10.1080/10298436.2022.2152026