Pervious Concrete Design Instructor: Cris Koutsougeras Advisor: Mohamed Zeidan By: Alex Rodney October 8, 2014

What is Pervious Concrete?  Pervious concrete is a special type of porous concrete that allows water from precipitation and other water sources to flow directly through the material. This reduces runoff and allows for the possibility for groundwater recharge.

Focal Point  The focus of this project is to find ways to lower the cost of pervious concrete using recycled concrete and improve the compressive strength.

Mixture  Pervious Concrete mixtures consist of rough large aggregate, sand, water, and air. Additives and recycled concrete will be added into the mixtures to create a porous, more cost effective concrete.  The admixtures that I will be using will be VMAR VSC-500 along with Darex AEA.

Mix Design  The mix design that I will be starting out with will be from Ascension Ready Mix Concrete Company.

Mix Additives  VMAR VSC-500 is a concrete mixture additive that enables the production of superior quality pervious concrete. I will be adding this with recycled concrete and testing the results of its compressive strength and permeability.

Mix Additives  Darex AEA is the next additive I will be using. This material increases the air entrainment to concrete.

Testing  All testing will be done through Ascension Ready Mix’s own testing lab at their facilities.

Supplies  All of the supplies I will be using will becoming from SELU or from Ascension Ready Mix.  Darex AEA  VMAR VSC-500  Sand  Fly Ash  Recycled Concrete  Pea Gravel (course aggregate)  Water

Timeline/Deliverables  Timeline/Deliverables:  September 2014: Research pervious concrete mix designs  October 2014: Secure testing lab to test cylinders along with materials needed  October 2014: Gather materials / Adjust mix design accordingly  November 2014: Design mixture and prepare trial mix  December 2014: Mix and pour 1 st set testing cylinders  January 2015: Conduct tests at Ascension Ready Mix lab  February 2015: Readjust mix design accordingly  March – April 2015: Perform cost analysis and prepare final report