MINI SESSION: Advancements in Pervious Concrete

Tuesday, November 5, 2024  8:00 AM - 9:00 AM, 414-415

The objective of this session to be provide a broad overview of the application of pervious concrete considering mixture proportioning, construction, testing, and maintenance.

Learning Objectives:
(1) Understand how pervious concrete can be successfully created as a low carbon transportation material;
(2) Understand how various aspects of mixture proportions influence hardened pervious concrete properties;
(3) Identify how low-cost monitoring can be incorporated into new projects;
(4) Demonstrate successful application of low carbon transportation material concepts to pervious concrete mixture proportioning.

Updates from the ACI Pervious Concrete Student Competition

Presented By: WALTER FLOOD IV
Affiliation: Flood Testing Laboratories Inc.
Description: This presentation will summarize the mixtures and performance of the entries to the ACI pervious concrete student competition from the current (Philadelphia) convention. We will summarize the range of gradations, paste contents, and cementitious materials. The relationship between design void content and properties of strength and permeability will be tied to the mixture proportioning guidance provided in ACI 522R23.

Observations Wells for Verifying Long-Term Performance of Pervious Concrete Pavements

Presented By: Liv Haselbach
Affiliation: Lamar University
Description: One challenge for adoption of pervious concrete is the perception of internal plugging and base siltation over time. This presentation will describe how to install monitoring wells in pervious concrete installations to ensure long-term infiltration performance.

Testing Fresh Void Content in Pervious Concrete

Presented By: Bruce Glaspey
Affiliation: Magruder Concrete Solutions
Description: The fresh density of pervious concrete is often used as the primary on-site acceptance criteria during construction. However, density is not always indicative of void content and acceptable permeability once hardened. This presentation demonstrate a newly developed technique for determining void content for in-place, fresh pervious concrete as a potential quality measure.

Low Carbon Pervious Concrete

Presented By: William Bill Brasher
Affiliation: Cemex
Description: This presentation will highlight successful projects in the South Eastern US utilizing Type 1L cement with up to 40% cement replacement with fly ash. These strong and durable installations also meet low-carbon requirements showing how pervious concrete can be a multi-faceted, resilient pavement, for combating a variety of climate challenges.