| Summary: | There is a demand and a need for cheaper and alternative surface coverings in environments with high temperature fluctuations. Our design for an alternative surface covering involves a basic twopart component epoxy with the addition of a solvent. The purpose of the solvent is to disrupt the reaction that forms the ordered chains to form a more disordered crystalline structure. The solvent in the finished product is 3% by volume of isopropyl alcohol. This mixture of epoxy and solvent has higher impact strength than epoxy alone, as well as a much lower brittle transition temperature of 27°C compared with 10°C for epoxy. An environmental chamber, tensile tester, Charpy impact tester, and 4- point bending test were used to determine these conclusions. The final product can be tailored with different aggregates to fit a specific need, such as decking surface material to coat the wooden planks on the Yukon River Bridge. Table of Contents Table of Figures . ii List of Tables . iii Abstract . iv Executive Summary . v 1. Introduction . 1 1.1 Yukon River Bridge Project 2006 . 1 1.2 Yukon River Bridge 2011 . 3 2. Scope of Work . 3 Part 1 . 3 Part 2 . 3 3. Test Results and Data . 4 Part I . 4 3.1 Project Basis . 4 3.2 Methodology . 6 3.3 Results/Future Work . 6 3.3.1 Charpy impact tests . 6 3.3.2 Tensile tests . 9 3.4 Chemical Theory . 11 3.5 Facilities. 14 3.6 Materials Tested . 16 Part II: . 18 3.7 Collecting Data . 18 3.7.1 Determining percent isopropyl alcohol (Figure 19) . 18 3.7.2 Determining the number of seal coatings (Figures 21–25) . 19 3.7.3 Wear testing . 24 3.7.4 Application process on test planks . 25 3.7.5 Conclusion of information gathered from collecting data. 30 3.8 Modification Made to the Planks . 30 4 What Went Wrong in the Experiment . 30 5 What Could Be Changed, Future Modifications. 31 References . 32 Table of Figures Figure 1: Yukon River Bridge. . 1 Figure 2: ASTM standards. . 5 Figure 3: Epoxy samples – temperature rise vs. impact strength. . 7 Figure 4: Epoxy with kerosene samples – ...
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