To start off Season 2 of Marine Infrastructure Live, Prof. Ehsani and Josh Ahumada discuss a step-by-step detailed demonstration of how a corroded seawall or bulkhead can be repaired. The 3-ft (900mm) wide panels are available in any length. The panels are connected to the corroded seawall with anchor bolts on an approximately 3 ft x 3 ft (1m x 1m) grid to create a very large structural wall in front of the deteriorated bulkhead. The annular space between the wall and these panels is filled with concrete or grout.
A unique feature of this patented system is the T profiles on the back face of the panels. That surface is also grit coated for improved bonding to concrete. The T profiles act as reinforcing bars that are permanently attached to the panels. The panels are amazingly strong. The SPiRe+ panels have a tensile strength equal to No. 5 Grade 60 steel reinforcing bars at a spacing of 2.5 in. (or 15mm, 400MPa bars at a spacing of 65mm). The panels have no corroding elements, thus lasting forever and ensuring a durable and sustainable repair. The video also shows details of how for splash-zone repairs the bottom of the annular space can be sealed to contain the grout!
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Негізгі бет Ғылым және технология S2E1: Step-By-Step Repair of Seawalls and Bulkheads with SPiRe+
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