ACI 522.1-20 (SI) PDF Download

ACI 522.1-20 (SI) is a standard that provides guidelines for the construction of pervious concrete pavement. The standard outlines the minimum requirements for materials, preparation, forming, placing, finishing, jointing, curing, and quality control of pervious concrete pavement. It also includes provisions for testing, evaluation, and acceptance of the pavement.

The standard emphasizes the importance of using pervious concrete, which allows water to pass through the pavement and into the ground, reducing stormwater runoff and promoting water infiltration. It specifies the materials to be used in the construction, ensuring they meet certain criteria for gradation, durability, and permeability.

Proper preparation of the subgrade and base is emphasized, along with the forming and placement of the pervious concrete. The standard provides guidance on the appropriate finishing techniques to achieve the desired surface texture and permeability.

Jointing and curing requirements are outlined to ensure the long-term performance of the pavement. Quality control measures are also included to ensure that the specified requirements are met during construction.