APPLICATION REPORT
Bridge Barrier Wall
Customer: Kentucky Department of Transportation
Location: I-265 Eastbound, Louisville, KY
Problem: Design changes made to the bridge deck required replacing the segmented bridge barrier wall with a continuous barrier wall. Project expense was a concern because of the considerable labor and environmental and disposal costs to remove the old wall segments and then cast in place a whole new wall. Time was of the essence because the pockets in the sectional wall were trapping water and sodium chlorides, saturating areas of the bridge deck, causing concrete spall.
Solution: Use Phoscrete to join and chemically bond the segmented sections together to form a continuous wall.
Product Being Replaced: A new continuous cast in place bridge barrier wall.
Savings Using Phoscrete: Substantial material, time, and labor savings were realized.
Products Applied: Phoscrete 601
Method of Installation: Open cast
Equipment Used: Mixed using electric hand drills, paddle mixing blade and 5 gallon plastic buckets.
Scope of Work: Lined with Visqueen plastic as a bond-breaker, ¾“ plywood blocker forms were held in place with concrete nails on both sides of each segmented wall section. Mixed Phoscrete 601 dry-aggregate and pre-measured liquid activator in five (5) gallon pails and pour in place (fed through the top) directly from the buckets. Minimal finishing was required.
Installation Date: 11-01-2008
Follow Up: Drive by inspections are periodically made and the Phoscrete repairs remains intact and unchanged from the installation date. This successful installation prompted KDOT engineers to specify Phoscrete Concrete for other applications when a superior concrete renewal material is needed.
Segmented barrier wall is now a continuous cast bridge barrier wall. Phoscrete fixed it.