Midwest Mobile Waterjet recently completed a challenging hydro demolition project at a Duluth MN waste water treatment plant. Specification required concrete hydrodemolition removal depth to be determined by pH and chloride levels. All work was completed on time and within customer budget.
Midwest Mobile Waterjet has added a custom-built vacuum clean up tool for use in concrete debris removal following hydro demolition. The system is powered by a 6000 cfm vac unit in addition to a low volume 10,000 psi jet to agitate material during the vacuum cleaning process. A skid-loader or walk behind mini track excavator is used to manipulate the vacuum nozzle which reduces manpower, injuries and make the cleaning process more efficient.
Midwest Mobile Waterjet recently completed a large public water tank polyurea lining removal project in Pueblo CO. This project became particularly challenging when it was discovered upon start-up that the entire tank had been skim coating with a very hard and tenacious filler that was up to ¼” thick in many places. The polyurea coating was installed on top of this base filler making the total coating thickness even greater.
Using 40,000 psi robotic tower robots and self-propelled deckblasting equipment MMW was able to complete this challenging project on time and on budget. MMW also performed the cleanup of the removed material and filtration of all wastewater.
Midwest Mobile Waterjet recently completed a challenging hydro-demolition project on the Brighton Dam near Baltimore Maryland. The project required hydro demolition of approximate 16,000 square feet of shotcrete, over a concrete base on the spillway of the Brighton Dam. Do to the varied thickness of the shotcrete and the softer compressive strength of the base slab this removal proved to be very challenging. However, no challenge is too great for MMW and we were able to design a system and process that satisfied the specification and was approved by the project engineers. The project also required strict waste water treatment monitoring and disposal which again MMW was able to perform admirably.
Midwest Mobile Waterjet (MMW) recently successfully completed a 300,000 million steel storage tank demolition at a papermill in Florida. The tank previously contained white liquor and was located in a turpentine handling area of the plant so a strict “Cold Cutting” requirement was in place. MMW utilized one of its portable 50,000 psi abrasive waterjet cutting system to successfully perform the work and cut the tank into pieces small enough for the crane to safely lift out of the area.
Midwest Mobile Waterjet recently completed a hydro demolition bridge project near Port St Lucie Florida. The general contractor, Lead Engineering, was looking for a solution to speed up the process of removing the bridge decks from several bridges on Interstate 95. The original process included manual chipping on top of each bridge girder then cut the deck rebar away from the girder steel reinforcing without damaging it. This proved to be a labor intensive and difficult process.
Lead Engineering project managers contacted MMW to find a better solution. MMW was able to utilize robotic hydro demolition to remove a specific depth of concrete (8.5”) and expose the deck rebar directly above each girder. A minimum of deck concrete (1 inch or less) was intentionally left in place above the girders to be removed by lightweight chipping tools. After the deck was free from the girders they were removed in large sections using a crane. The process proved to be significantly faster than the original manual method and Lead Engineering was able to finish the bridge work ahead of schedule.