page_title: Scabbling
hierarchical_section_title: Scabbling
caption_attribution_description: English: Closeup of worker beginning to scabble a concrete foundation in preparation for grouting underneath a frame for a pump skid.
context_page_description: Scabbling—also called scappling—is the process of reducing stone or concrete. In masonry, it refers to shaping a stone to a rough square by use of an axe or hammer. In Kent, rag-stone masons call this "knobbling". It was similarly used to shape grindstones.
  In modern construction, scabbling is a mechanical process of removing a thin layer of concrete from a structure, typically achieved by compressed air powered machines. A typical scabbling machine uses several heads, each with several carbide or steel tips that peck at the concrete. It operates by pounding a number of tipped rods down onto the concrete surface in rapid succession. It takes several passes with the machine to achieve the desired depth.
  Scabbling is used to remove road markings, surface contamination, to add a decorative or textured pattern to concrete, or to prepare a concrete surface prior to the installation of grout.
context_section_description: Scabbling—also called scappling—is the process of reducing stone or concrete. In masonry, it refers to shaping a stone to a rough square by use of an axe or hammer. In Kent, rag-stone masons call this "knobbling". It was similarly used to shape grindstones. 
  In modern construction, scabbling is a mechanical process of removing a thin layer of concrete from a structure, typically achieved by compressed air powered machines. A typical scabbling machine uses several heads, each with several carbide or steel tips that peck at the concrete. It operates by pounding a number of tipped rods down onto the concrete surface in rapid succession. It takes several passes with the machine to achieve the desired depth. 
  Scabbling is used to remove road markings, surface contamination (used in the nuclear industry), to add a decorative or textured pattern to concrete, or to prepare a concrete surface prior to the installation of grout.
caption: A worker beginning to scabble a concrete foundation prior to installing grout for an equipment skid.
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