On August 9, 2019, Tyson Foods' Holcomb, Kansas beef plant experienced the first large fire in the meat processing industry in nearly 20 years. The long-burning fire precipitated the collapse of a portion of the high roof over the mechanical mezzanine, which housed equipment for numerous critical plant processes. This took portions of the plant, the second largest in the United States, out of operation for months. The pressures of substantial business interruption costs, as well as the market consequences for cattle feeders from the Southern Plains region, necessitated a rapid response. This presentation highlights the investigation into the extent of damage to precast members, including visual inspection, nondestructive and laboratory evaluations, testing, simulation, and analyses. Based on this investigation, members were identified for repair or removal and replacement.
Concrete is the most widely used construction material and can be durable for hundreds of years; however, the main cause of concrete deterioration is from corrosion of reinforcing steel. Steel is thermodynamically unstable and will eventually oxidize to a lower energy state. The rate of deterioration in new and existing structures can be modeled to predict the service life based on the severity of the service environment, the concrete quality, the ingress of deleterious materials, and other factors to various degrees of success. This presentation will provide an overview of many of the service life models currently in use and provide an evaluation protocol for their application related to both new and existing structures.
This 60-minute session will be comprised of a 10-15 minute introduction to ACI 562, followed by a 45-minute discussion by a moderated panel of various experienced stakeholders in the concrete repair industry, including Specifiers, Contractors, Manufacturer/Distributors, and Owners.
We will provide a brief presentation on the AET team, the AET services and business, how we operate as a team and perform our testing services, and what benefits we can provide our customers. We strive to get to know our clients well, educate them, and provide innovative, multi-disciplinary, and personalized service.
Three precision epoxy grouts: E3-Deep Pour, E3-Xtreme and E3-Flowable will be demonstrated. These products are precision grouts used to support equipment and machinery in demanding environments. The demonstration will explain why and where epoxy grouts are used, how they are tested, project preparation, mixing and application, and other considerations. The features and benefits of each product will be described, and newly patented dust-limiting aggregate technology will be introduced.
Demonstration will show what an acceptable CMU substrate for application of air barrier materials looks like, how to prepare Sprayable Cat 5 air barrier coating for application, discuss proper pump specifications for spraying the material, and demonstrate best practices for spraying Sprayable Cat 5, a Silyl-Terminated Polymer air barrier to a CMU substrate, while providing “tips & tricks” along the way.
The recommended application methods utilized to successfully install Pecora Deck HB1000, a two-part polyurethane traffic coating, will be demonstrated. Demonstration and discussion will include primers, waterproofing base coats, and high-build, UV resistant topcoat.