Webinar Archive

April 15, 2016

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Title: Enhancing Microsoft Word Accessibility Skills

ABSTRACT: Microsoft Word gives document authors several straightforward tools to create more accessible documents. Our workshop will detail how to take advantage of several of the techniques that make more accessible Word documents. You will learn how to use Word to create accessible images, section headings, lists and more. You will also learn techniques to create accessible color choices and data table layouts. All of that, plus more tips and tricks.

PRESENTER: Rob Carr, Accessibility Coordinator, Oklahoma ABLE Tech

May 13, 2015

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Title: Alkali-Silica Reaction (ASR) and ASR Mitigation

ABSTRACT: In 2012 it was discovered that roughly 4 miles of an interstate median barrier along Interstate 49 in Northwest Arkansas had rapidly deteriorated. After the initial inspection, a sample was submitted for analysis, and found to contain evidence of alkali-silica reaction (ASR). A research program was implemented with the goal of determining the cause of ASR and developing a program for mitigating the ongoing deterioration. The median barrier had not deteriorated equally throughout the 4 miles, and the level of damage varied considerably throughout the length. A research program was implemented to evaluate several treatment methods, with the goal of slowing or arresting the deterioration within the median barrier. Several sections of the median barrier were instrumented to measure expansion and internal relative humidity. The barrier wall has been monitored for approximately two years. The aggregates used in the median barrier construction were also evaluated in laboratory testing, which included the AMBT and CPT. The laboratory results were compared to the findings from the petrographic analysis. The results of the laboratory testing were used to develop recommendations on the prevention of ASR in concrete which contains the same aggregates.