00931963

Component

https://doi.org/10.3141/1789-05

http://scholar.google.com...ieri&publication_year=2002

A runoff model from porous pavements is presented that links the hydraulic conductivity of porous pavement with the geometric characteristics of the road section and rainfall intensity. The theoretical model has been tested in the laboratory with an original device that simulates rainfall on porous pavements and, at the same time, measures the depth of water over the impervious layer during the seepage motion. Based on the experimental data, a useful chart for porous pavement design is also presented. For every inclination (i) of the impervious layer, the graph provides the value of the nondimensional ratio Hmax/L between the maximum depth (Hmax) of the water table over the impervious layer and the length (L) of the seepage path, in the function of the nondimensional ratio 4I/k between rainfall intensity (I) and permeability (k). Data provided with this graph could improve porous pavement design (e.g., to assess the minimum thickness of an open-graded friction course needed to avoid surface runoff) usually based only on mechanical resistance determinations. If the chart is not used, to ensure the best flow conditions, the relation i squared > 4I/k should be always verified.

This paper appears in Transportation Research Record No. 1789, Bituminous Paving Mixtures 2002.

English

p. 46-55

2002

Transportation Research Record

0309077141

Figures (8) ; Photos (1) ; References (28) ; Tables (4)

Depth; Design charts; Geometric design; Laboratory tests; Mathematical models; Open graded aggregates; Pavement design; Pavements; Permeability coefficient; Rainfall; Runoff; Surface course (Pavements); Thickness; Water table

Rainfall intensity

Design; Highways; Hydraulics and Hydrology; Pavements; I22: Design of Pavements, Railways and Guideways; I23: Properties of Road Surfaces; I26: Water Run-off - Freeze-thaw

TRIS, TRB, ATRI

Oct 3 2002 12:00AM

• AGGREGATE BLENDING FOR ASPHALT MIX DESIGN: BAILEY METHOD
• APPLICATION OF DIGITAL IMAGE CORRELATION METHOD TO MECHANICAL TESTING OF ASPHALT-AGGREGATE MIXTURES
• COARSE- VERSUS FINE-GRADED SUPERPAVE MIXTURES: COMPARATIVE EVALUATION OF RESISTANCE TO RUTTING
• COMPARISON OF FUNDAMENTAL AND SIMULATIVE TEST METHODS FOR EVALUATING PERMANENT DEFORMATION OF HOT-MIX ASPHALT
• DETERMINING THE LOW-TEMPERATURE FRACTURE TOUGHNESS OF ASPHALT MIXTURES
• DYNAMIC MODULUS OF ASPHALT CONCRETE WITH A HOLLOW CYLINDER TENSILE TESTER
• EFFECT OF AGGREGATE STRUCTURE ON RUTTING POTENTIAL OF DENSE-GRADED ASPHALT MIXTURES
• EFFECT OF FINE AGGREGATE ANGULARITY ON COMPACTION AND SHEARING RESISTANCE OF ASPHALT MIXTURES
• EVALUATION OF FATIGUE HEALING EFFECT OF ASPHALT CONCRETE BY PSEUDOSTIFFNESS
• EVALUATION OF MEASUREMENT TECHNIQUES FOR ASPHALT PAVEMENT DENSITY AND PERMEABILITY
• HISTORY AND FUTURE CHALLENGES OF GYRATORY COMPACTION: 1939 TO 2001
• INFLUENCE OF ASPHALT TACK COAT MATERIALS ON INTERFACE SHEAR STRENGTH
• LOUISIANA EXPERIENCE WITH CRUMB RUBBER-MODIFIED HOT-MIX ASPHALT PAVEMENT
• MICROMECHANICAL ANALYSIS OF VISCOELASTIC PROPERTIES OF ASPHALT CONCRETES
• PREDICTING VISCOELASTIC RESPONSE AND CRACK GROWTH IN ASPHALT MIXTURES WITH THE BOUNDARY ELEMENT METHOD
• ROUND-ROBIN STUDY FOR FIELD PERMEABILITY TEST
• SHEAR PROPERTIES AS VIABLE MEASURES FOR CHARACTERIZATION OF PERMANENT DEFORMATION OF ASPHALT CONCRETE MIXTURES
• SIMPLE PERFORMANCE TEST FOR FATIGUE CRACKING AND VALIDATION WITH WESTRACK MIXTURES
• STANDARDIZED PROCEDURE FOR ANALYSIS OF DYNAMIC MODULUS \E*\ DATA TO PREDICT ASPHALT PAVEMENT DISTRESSES
• TARGET AND TOLERANCE STUDY FOR ANGLE OF GYRATION USED IN SUPERPAVE GYRATORY COMPACTOR
• TIME-TEMPERATURE SUPERPOSITION FOR ASPHALT CONCRETE AT LARGE COMPRESSIVE STRAINS
• TOWARD A MICROMECHANICS-BASED PROCEDURE TO CHARACTERIZE FATIGUE PERFORMANCE OF ASPHALT CONCRETE
• USE OF STIFFNESS OF HOT-MIX ASPHALT AS A SIMPLE PERFORMANCE TEST