Work on the slab of the Genoa Bridge started very recently, operations were supposed to be carried out in 24-hour uninterrupted pour in about 7-8 days, but for various reasons including weather aspects, it was decided to do a split pour.
After the casting of the first slab last Friday night and the forced 48-hour break due to bad weather, the Migliaccio Group resumed work on the casting of the second slab of about 50 meters on Monday, June 8. In total, the volume of concrete that will be pumped will be 8,000 cubic meters. This is a mix made by Calcestruzzi SpA, which has already supplied the product for the bridge piers and has composed a task force of 25 technicians to make this concrete mix.
Estimated to require 10 days of work, this is a crucial step in getting to the completion of the work. The work will be done mainly during the night for thermal reasons; the cooler night temperature ensures slower drying. It is a challenging pour: we are talking about 300 cubic meters for a total use of 32-34 concrete mixers on the site.
Since this is a surface with little thickness and a length of about 30m, operations are particularly delicate, and it is essential to prevent cracking during curing.
In order to pump safely and efficiently, a system was designed that allows the concrete to go up on the deck when the concrete has already set, concrete is pumped from the abutments with piping up to 200m to allow the pumps to move to an already cured slab.
Once the slab is finished, we will proceed for the furnishing phase of the bridge: cable tray, grating, the photovoltaic panels and the glass barrier, the distinctive element of the New perGenova Bridge. Finally inside the deck will be placed the so-called guardrails for about 4 km.
Waiting for future updates, we look forward to seeing you next week with a new article!