Renovation and replacement of deteriorated concrete bridges, substructures, and roadways are of vital concern to highway and bridge maintenance personnel. As the demand for safe and efficient selective demolition work increases, so does the demand for better methods to expedite the demolition process.
Conventional methods for removal of deteriorated concrete traditionally include jack hammering. In recent times, however, there has been a decline in the use of this equipment, probable reasons being that new alternatives have emerged and its following disadvantages.
PressureJet’s high pressure water jet system eliminates these negative results by utilizing high pressure water jetting techniques, Hydro-Demolition. The Hydro-Demolition process is successfully utilized to remove deteriorated concrete, leaving sound concrete with a rough profile, perfect for bonding the newly poured overlay. Hydro demolition is a relatively new method of removing select portions of a hardened concrete structure.
Hydro-Demolition is a technology that uses extremely high pressure water jet that is capable of removing concrete while not damaging the rebar. The practical application of this technique makes it an extremely effective and efficient method of concrete removal. This is due to two main factors, one being the direct impact of the water jet on the surface. The other is the porous nature of concrete, the high pressure water is forced into the tiny cavities and cracks within the concrete mass, causing it to fracture and split.
Hence, this high pressure water jet equipment breaks up concrete by disintegrating the cement matrix between aggregates. The demolishing effect can be tightly controlled to a desired level of removal, ranging from light scarification of the surface to deep penetration of the structural element. The use of the hydro demolition process has several advantages over conventional concrete removal methods, such as jack hammering.
Due to above obvious advantages, hydro demolition has become a first choice vis-à-vis other conventional methods. It’s no wonder why so many contractors and other construction personnel are switching to the power of water jetting for Hydro-Demolition.