It is truly paramount to recognize the diversity of solutions available because of the versatility that shotcrete offers. Shotcrete placement provided more efficient, sustainable and durable concrete solutions in these two cases than could have been achieved with a form-and-pour approach.
Relieving Water Pressure on Shotcrete Lining by Integrating a Drainage Mesh
Underground construction, especially a tunnel, is one of the most complex challenges in the field of civil engineering. Dolenco Drain is an innovative solution which addresses many of the difficulties with controlling or eliminating water pressure in an easy, safe, long-term, and cost-effective manner.
Summary of ‘Guideline on the Applicability of Fiber-Reinforced Shotcrete for Ground Support in Mines’
This guide examines and provides a description of the common testing methods used for FRS and how to interpret the information generated for ground support in mines.
Guide to ACI Shotcrete Documents
A Study on Low-Velocity Sprayed Mortars
Why Membership Benefits Refractory Contractors
In March 2024, at the ASA committee meetings in Austin, TX, the question came up about refractory contractors, and why that industry segment is so under-represented in the association. Considering my background, I felt qualified to address the issue. Much of my work involved shotcrete installation of refractory material. I began gunning refractory and lining steel teeming ladles in 1975, at the J&L Aliquippa Works. I gunned blast furnace troughs at United States Steel, Wheeling Pittsburgh Steel, and Crucible Specialty Steel. Over subsequent years, we’ve serviced the power industry, installing gunned refractory in power plant ash hoppers, burners, baffles, and power plant penthouse areas in Pennsylvania, Ohio, West Virginia, New York and Maryland.
The Rondout Bypass Tunnel Shafts – Shotcrete Lining
The Rondout-West Branch Tunnel (RWBT), a segment of the Delaware Aqueduct (the Aqueduct), was built from 1937 to 1944 and provides about 50% of New York City’s total water supply. The tunnel is concrete lined and has a finished inside diameter of 13.5 ft (4.1 m). It is about 45 mi (72 km) in length and runs in the southeasterly direction from the Rondout to the West Branch Reservoirs.
O’Hare Plaza West Drive and Executive Garage Restoration
While infrastructure projects such as parking garages are often the last projects to be funded due to their utilitarian nature, they are important to the health of commercial properties since they are often the first impression for tenants and visitors. At O’Hare Plaza, the parking garage serves the 700,000 ft2 (65,000 m2) office complex.
The Neville Island Bridge Project
The Neville Island Bridge Rehabilitation project originally came out for bid in 2018. The bridge is located in Allegheny County, PA and within PennDOT’s District 11. In the bid package, it was noted that construction could not begin until a nesting pair of Peregrine Falcons had fledged their young, which translated to a late summer start.
Moyie Dam Repair: Back to the Future
Moyie Dam at Bonner’s Ferry in northern Idaho started initial construction just before WWII. They shut down construction during the war. After the war was over, the dam went into service in the late 1950s.