In late winter of 2019 Tim Haahs & Associates developed a solution set of plans for the Bucks County Parking Garage located in Doylestown, PA. The existing structure has fallen into disrepair and requires numerous concrete repairs, joint sealant replacement, composite strengthening and numerous other miscellaneous repair items. April 20, 2019 the project plans were released for bid. On April 24th 2019 a mandatory pre-bid was required of all contractors bidding as a prime on the project. Coordinated Systems Consulting is providing pricing for the FRP composite strengthening for the pre-cast tees in flexure as well as shear reinforcing as noted on the plans.

In preparation to laying the CFRP, CSC technicians readied the area for repair by removing signs, stickers, and other obstructions and ensuring a properly cleaned surface. Work then progressed through installation of CFRP. The above photos show the surface prior to preparation as well as a surface ready for the application of the CFRP system.

Following proper surface preparation, a prime coat of Sikadur 330 was applied to the substrate to fill all minor imperfections. The Sikawrap Hex1400c fabric was then hand saturated to ensure proper impregnation with Sikadur 330. Hex1400 was then applied to the surface and smoothed to ensure no imperfections during its’ curing process. System was then leveled, set, and sealed using a coat of thickened Sikdur 300. The following photos show the application process of the CFRP system as well as its’ completion.

After CFRP installation, a thorough inspection of the completed work was done confirming proper installation and that all materials used had been properly recorded. Sample panels were cast for future tensile testing (by others, if required) and provided. CSC Technicians ensured a clean and orderly work area was left prior to de-mobilization and completion of the CFRP installation.