New UAB Football Center Sits on Mass Concrete Slab

Producer: Kirkpatrick Location: Birmingham, AL

New UAB Football Center Sits on Mass Concrete Slab

A modern athletic facility is rapidly taking shape on the campus of the University of Alabama at Birmingham. The main building of the new UAB Football Operations Center features a massive concrete foundation that required careful coordination to place.

The UAB Blazers will have a new home by late summer 2017. On August 29, 2016, UAB broke ground on the $22.5-million football operations center including a $4.2-million covered pavilion practice field.

Kirkpatrick’s Rick Passey details the unique challenges of this project. “UAB decided to upgrade their facilities in terms of a new football operations complex,” says Passey. “They’re going to provide new athletic offices for all the football staff. It will include a new weight room, and several therapy pools. It’s a large concrete project in the fact that it’s got a huge concrete foundation to it instead of the more typical spread footings or caissons. This is just a huge foundation mat that they have poured for this project.”

Overnight placement of the concrete was conducted by Lithko Contracting, LLC and overseen by M.J. Harris Construction Services. “This is an opportunity for us to work with Lithko for the first time. Lithko is a contractor that’s fairly new to the Birmingham market. They do work all over the Southeast and all over the country. This gave us an opportunity to provide concrete and service one of their projects which we really appreciated,” says Passey.

Passey says Kirkpatrick has worked with UAB in the past on other building projects. But this one was the first to include a large mass concrete pour. “For example, the new baseball field which is just to the north of this project had its own set of subterranean features that required a whole different foundation system. For this location, they decided that either driving piles or drilling caissons wasn’t going to work. So they basically are pouring a 2000 cubic yard foundation mat over a mud mat and the whole thing is just going to provide the support for this building. The first time I’ve ever seen it involved in a project for UAB.”

Passey says delivery challenges for this project primarily centered around the two large foundation pours. “Both of them were over a thousand cubic yards,” says Passey. “In coordination with the contractor, we decided that weekends would be the best time to do this due to traffic concerns around UAB.

Kirkpatrick delivered about 140 to 150 cubic yards an hour to the job site. “That necessitated quite a bit of our fleet. We felt it best to do it at a time when we could devote resources to the project. Not just drivers, but also production people, quality assurance people and our sales staff to help direct traffic on the site.”

Because of warm evening temperatures, careful monitoring was required to ensure the material steered clear of thermal cracking. “When concrete is poured that thick the actual hydration of the cement in the concrete can create temperatures that can actually crack the concrete,” says Passey. “So we had to be very mindful of the mix that we used, the admixtures that we used, and the temperature of the concrete.”

ConcreteSouth’s laboratory also worked closely with the project’s contractors to develop a special mix design suitable for the mass concrete pour. “Bo Canning in our lab is a genius when it comes to knowing how concrete is going to act, what the demands of the placement are and what we need to do to maximize performance of our concrete. His group worked a great deal with the mixes.”

Fly ash was used in the mix which helps keep the material within temperature specifications. “Fly ash is good for controlling the temperature of the concrete because there’s not quite as much cement in there yet. The total cementitious content of the concrete still allows for later strength gain. They really weren’t in a hurry for any higher or early concrete strengths which is very difficult to achieve with mass concrete anyway. So we made maximum use of our fly ash substitution in the concrete mixture.”

HOK of Kansas City, along with Goodwyn Mills & Cawood (GMC) of Birmingham are architects for the project.

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