Case Studies

Case Study with the Indiana Department (IN-DOT)

The project will be a mutli-year study on the impact of the EDYSTON technologies in controlling the wicking action and future deterioration of concrete cracks at concrete infrastructure (and the like), at the Kruse Tunnel in Ft Wayne, IN, see Figure 1.

Figure 1 – 700 ft long, deteriorated concrete tunnel in Ft Wayne, IN.

The IN-DOT agreed to allow a product demonstration, and in May-2022 the EDYSTON team went to work. In order to quantify EDYSTON’s impact it would only be applied to one side of each of the seven construction joints, illustrated in Figure 2. The process of applying is preceded by pressure washing loose debris off of the surface. Based on the deterioration level, the EDYSTON products DENSYGEL, ENVYROGEL, and DURYGEL were applied through successive applications over an 8-hour day. A commercial grade, cordless backpack sprayer was used to uniformly apply EDYSTON within 10 minutes of the concrete surface reaching a saturated surface dry condition after the initial pressure washing step.

Within 18 hrs it was clear that EDYSTON had stopped any water migration through the areas it was applied, while water continued to drip from the untreated side of each joint. In August 2022 both sides of the construction joints were cored, removing 56 total, 2.5” diameter cores from the tunnel, half untreated (control set) and the other half treated with EDYSTON. The samples sent for analysis validated the results seen in the field, Figure 3, the EDYSTON reduced permeability of the concrete by 10% to 40%

Figure 3 – After application of EDYSTON, Kruse Tunnel May2022