One major problem hurting pervious concrete is an abundance of incorrect pervious mix design specs online, says Erickson, who works in pervious research and development for Evolution Paving Resources.

A plate (350 mm × 350 mm × 120 mm) was made for each pervious concrete mix. From each mix, a prism (350 × 120 × 120 mm) was extracted and then sectioned vertically and horizontally with a circular ...