Color Pervious Concrete Pavements Applied to Bikeway Track: Mechanical, Hydraulic, and Functional Performances

Feasibility of pervious concrete as engineered material arresting system for airport runway safety areas

“…As RESA can be so understood as a beyond runway safety length destined to comprise a twofold function, by one hand allowing some extended speed reduction lane and braking allowance, and on the other hand, if still insufficient, a final lane purposed to definitively (hopefully) arrest the aircraft, stopping it. This extra length with EMAS, when territorially available, implies in paving, what is normally understood as a waterproofed soil area, that can be mitigated by using a compensatory system with advantages of increasing albedo in urbanized areas, among other benefits, including the possibility of avoiding completely the rains and storms runoff in a safety paved area, improving even more safety at the final aircraft movements, in combination with very rough texture of surface [25]. The options are clear: using thin carpet layers of open graded asphalt mixture or pervious concrete, both over not at all packed aggregate and poor compacted base (traditional gravel with no fines and very poor graded as well poor graded construction rubbles).…”

“…Pervious pavements saw extensive use in European countries in the 1970s, with American experiences going back to the 1980s [25]. The dosage of concrete to achieve the characteristic of offering high permeability implies very little or no fine aggregate in the mixture, seeking a void index (porosity) ranging from 15% to 35% of the total volume of concrete, which gives free passage to the surface waters that come through it [29]- [31].…”