Pervious Concrete Walkway
Southeastern Raptor Center in Auburn, Alabama - November 2013
Aerial View of The Southeastern Raptor Center
Aerial View of the concrete pouring location
Aerial View of The Southeastern Raptor Center
The Project Site
This slideshow displays images of The Southeastern Raptor Center and the location of where the pervoius concrete path will be constructed. The walkway is approximately 250 linear feet, consisting of medium sized stone and gravel (#57) compacted in between the CMU wall where the bird cages sit and several wooden, railroad ties wedged next to each other throughout the entire distance. To place the concrete, me and my fellow classmates will constructed wooden T-braces and level the gravel path to pour the concrete. Images of this next process are displayed in the next slideshow below.
Me (on the left) leveling the gravel
Preparing the Forms
The following images displayed in this slideshow illustrate the preparation and construction of the forms. The first two pictures show me and a team of classmates and facalty adjusting the large, wooden railroad ties and raking the gravel to a level position. This is important to have so that the pervious concrete can infiltrate liquid properly and can be contained within the forms from the beginning of the pour until after the pour is completed. The rest of the images show the T-braces being nailed into place on the railroad ties. These braces are then checked to make sure there are no ways for the concrete to leave the forms. After these steps are completed, it is time for the pour to begin. Images of this next process are displayed in the next slideshow below.
Me (on the left) waiting to shovel out the next batch of concrete
Being shown how to use a Lightning Striker
Scale of joint's depth and width
Me (on the left) waiting to shovel out the next batch of concrete
Pouring and Finishing
This slideshow displays images of the pervious concrete pour, the striking and leveling of the concrete, and the cutting od the joints after the concrete has curred. The pour itself took about 5 hours to complete, even with freezing conditions throughout the morning. Two concrete trucks full of pervious concrete were used on this project. I managed the Lightning Striker with two of my fellow classmates for the duration of the poor. Joints were cut at 10 foot spacing with a depth of about 1.5 inches. Two days after the joints were cut, the forms were stripped and tools and excess materials were hauled away. The scheduling for the project can be found in a sub tab of this project.