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The concrete floor is cut with a variety of diamond abrasives of the concrete slab. Polishing can be done wet or dry. However, in the United States, new OSHA regulations on crystalline silica and protecting skilled trades in the concrete, masonry, and brick industries are encouraging the development of wet refinement systems or the use of ...
Wet-mix shotcrete involves pumping of a previously prepared concrete, typically ready-mixed concrete, to the nozzle. Compressed air is introduced at the nozzle to impel the mixture onto the receiving surface. The wet-process procedure generally produces less rebound, waste (when material falls to the floor), and dust compared to the dry-mix ...
On-site concrete slabs are built on the building site using formwork - a type of boxing into which the wet concrete is poured. If the slab is to be reinforced, the rebars, or metal bars, are positioned within the formwork before the concrete is poured in. [26] Plastic-tipped metal or plastic bar chairs, are used to hold the rebar away from the ...
Diamond grinding is a pavement preservation technique that corrects a variety of surface imperfections on both concrete and asphalt concrete pavements. Most often utilized on concrete pavement, diamond grinding is typically performed in conjunction with other concrete pavement preservation (CPP) techniques such as road slab stabilization, full- and partial-depth repair, dowel bar retrofit ...
United States Navy Seabees use a screed (noun) to screed (verb) wet concrete. The form-work acts as screed rails.. In the United States, a person called a concrete finisher performs the process of screeding, which is the process of cutting off excess wet concrete to bring the top surface of a slab to the proper grade and smoothness.
Lift slab construction (also called the Youtz-Slick Method) is a method of constructing concrete buildings by casting the floor or roof slab on top of the previous slab and then raising (jacking) the slab up with hydraulic jacks. This method of construction allows for a large portion of the work to be completed at ground level, negating the ...
This movement compresses the foundation, often creating cracks on the concrete. This weakens the structure. Another byproduct of the heat is it can cause a foundation to sink to the ground.
When creating hydrophobic concrete through a coating process, a coating is sprayed or brushed onto a porous surfaces. In most cases, it is applied to a regular concrete slab that then undergoes a corrosive process to expose more of the concrete's capillaries. This can be achieved by water blasting the surface at about 3,000-4,000 psi.
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