Take out the concrete you want gone and leave the rest standing. We cut the section free, burst it apart and crush it down, with low noise and low vibration the whole way through.
Controlled demolition is the measured removal of a concrete element without wrecking the structure around it. We saw a clean line to isolate the section with a diamond blade, set hydraulic splitters into cored holes to crack it apart, and crush the pieces down with a hydraulic muncher. Because none of that hammers the concrete, the building is not shaken while the work is going on.
That makes it the method to reach for near live services, beside structural elements that have to stay, and in buildings that are still occupied while the work happens. Every job is propped and supported before anything is removed, and runs off a risk assessment and method statement agreed with you before the first cut.
We diamond saw a clean line around the piece coming out, top, bottom and sides, so the break stops exactly where the drawing says. The wall, slab or beam you are keeping is never shaken loose with it.
Holes are cored into the isolated concrete and a hydraulic splitter is set inside. The ram pushes out and cracks the section apart along the line, with no hammer action and very little noise. It suits live services and occupied rooms for that reason.
A hydraulic crusher on a mini-excavator bites the cut sections into pieces small enough to handle and cart. The rebar is sheared and pulled out as we go, so the concrete and the steel come apart on site.
Temporary propping goes in before anything comes out, and every job runs off a risk assessment and method statement agreed with you first. Rubble, dust and steel leave with us, and the floor gets a sweep before we go.
A few controlled removals from the van, where we cut the section free and took it out without shaking the rest. Photographed on site as we left them.
The questions the crew gets asked most on this kind of job. Anything not covered here, call and we will talk it through.
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