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  2. Controlled Impact Rescue Tool - Wikipedia

    en.wikipedia.org/wiki/Controlled_Impact_Rescue_Tool

    Controlled Impact Rescue Tool, or CIRT, is a concrete breaching tool produced by Raytheon, that is capable of providing Urban Search & Rescue (USAR) teams with the ability to penetrate a reinforced concrete wall up to four times faster than traditional methods. [1] [2] [3] [4]

  3. Jackhammer - Wikipedia

    en.wikipedia.org/wiki/Jackhammer

    These tools are typically used to break up rock, pavement, and concrete. A jackhammer operates by driving an internal hammer up and down. The hammer is first driven down to strike the chisel and then back up to return the hammer to the original position to repeat the cycle.

  4. Hammer drill - Wikipedia

    en.wikipedia.org/wiki/Hammer_drill

    Although each blow is of relatively low force, these thousands of blows per minute are more than adequate to break up concrete or brick, using the masonry drill bit's carbide wedge to pulverize it for the spiral flutes to whisk away. For this reason, a hammer drill drills much faster than a regular drill through concrete, brick, and thick lumber.

  5. Powder-actuated tool - Wikipedia

    en.wikipedia.org/wiki/Powder-actuated_tool

    Powder-actuated tools come in high-velocity and low-velocity types. In high-velocity tools, the propellant charge acts directly on the fastener in a process similar to a firearm. Low-velocity tools introduce a piston into the chamber. The propellant acts on the piston, which then drives the fastener into the substrate.

  6. Bush hammer - Wikipedia

    en.wikipedia.org/wiki/Bush_hammer

    A bush-hammered concrete surface. Bush hammers exist in many forms, from simple hand-held hammers to large electric machines, but the basic functional property of the tool is always the same – a grid of conical or pyramidal points at the end of a large metal slug.

  7. After a century, concrete plant that helped build L.A. makes ...

    www.aol.com/news/century-concrete-plant-helped...

    A worker sprays water to keep dust down at the Cemex concrete plant in West Hollywood. A 34-story apartment building is being planned for the site. (Brian van der Brug / Los Angeles Times)

  8. Digging bar - Wikipedia

    en.wikipedia.org/wiki/Digging_bar

    A lining bar is used to shift the alignment of railroad tracks, to manipulate some types of railroad track jacks, to "nip up" or lift ties and rails, and as a digging tool. Lining bars have a tapered form. They often have a square cross section between one and 1-1/2 inches at one end. They may have a pyramidal, wedge, or pinch point.

  9. Rubblization - Wikipedia

    en.wikipedia.org/wiki/Rubblization

    A hydraulic breaker creates concrete rubble. Rubblization is a construction and engineering technique that involves saving time and transportation costs by reducing existing concrete into rubble at its current location rather than hauling it to another location. Rubblization has two primary applications: creating a base for new roadways and ...

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