Technical guidelines for permeable concrete pavements

Figures: Cerib

Scope of the study: a) porous concrete paving blocks, b) concrete pavements with widened joints, c) concrete grass grids

Figures: Cerib

Figure: Cerib

Cerib report – professional technical guidelines on permeable concrete pavements

Figure: Cerib

Schematic layout of the full-scale permeability test apparatus

Figure: Cerib

Figure: French Interministerial Circular N° 77284

Rainfall regions in France, INT 77-284[10]

Figure: French Interministerial Circular N° 77284

Figure: Cerib

Tensile splitting test – EN 1338 [2]

Figure: Cerib

Principle of the full-scale test of concrete grass grids

Figure: Cerib

Figures: Cerib

Principle of the laboratory test of concrete grass grids – EN 1339 [3]

Figures: Cerib

Figure: Cerib

Failure of a concrete grass grid after a 3-point bending test

Figure: Cerib

In France, no guidelines have yet been published that specify the requirements for permeable concrete block pavements and their performance. The Study and Research Center of the French Concrete Industry (Centre d’études et de recherches de l’industrie du béton, Cerib) recently issued a draft that amongst other things contains technical requirements for permeable paving blocks as well as a test protocol to characterize the vertical permeability of pavements.

Following the European Water Framework Directive (2000/60/EC) [1], on every large watershed, general guidelines were agreed with respect to a balanced and sustainable water resource management. According to these guidelines, local authorities need to define rainfall zones whilst detailing areas where actions must be implemented to limit soil sealing and to control rainwater flow and runoff. Thus, for new urban developments, the authorities can disallow connection to the sewer system, determine a maximum flow rate to be discharged into the sewer system (which will be achieved via water...