Pervious concrete reaches 10–20 MPa compressive strength, lower than structural concrete (30–40+ MPa) but plenty strong for most pavement applications: driveways, parking lots, patios, sidewalks, and low-traffic roads.

The void structure trades some strength for the ability to filter water. With proper installation and a well-designed aggregate base, service life reaches 20+ years.

The main benefits: eliminates surface runoff and puddles, filters rainwater naturally as it passes through, replenishes groundwater instead of overloading storm sewers, reduces heat island effect compared to asphalt, and helps meet city impervious surface coverage limits for your property.

In Calgary, pervious concrete can help satisfy stormwater management requirements while staying within lot coverage regulations.

Yes — primarily keeping the surface voids clear. Over time, fine sediment, dust, and organic debris can clog the pores and reduce permeability. Routine maintenance is simple: periodic pressure washing or vacuum sweeping (typically 1–2 times per year) restores full flow capacity.

Avoid using sand for winter traction on pervious surfaces — use rock salt or magnesium chloride instead, which won't clog the voids.

Yes. Properly installed pervious concrete performs well in Calgary's freeze–thaw climate because the void structure actually helps: water drains through instead of pooling and freezing on the surface. This reduces the freeze–thaw damage that plagues traditional concrete pavements.

The keys are proper base design (deep enough for stormwater storage), correct mix design, and expert installation with specialized rollers to avoid closing the surface pores.