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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.
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 1st 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