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February 2013) (Learn how and when to remove this message) Concrete sealers are applied to concrete to protect it from surface damage, corrosion , and staining. They either block the pores in the concrete to reduce absorption of water and salts or form an impermeable layer which prevents such materials from passing.
The high spray outputs and large cross-sections require the work to be mechanised. Concrete spraying systems with duplex pumps are mainly used for working with wet mixes. Unlike conventional concrete pumps, these systems have to meet the additional requirement of delivering a concrete flow that is as constant as possible, and therefore ...
Paint remover is applied to an aircraft's landing gear during an inspection looking for cracks in the aluminum. Paint stripper or paint remover is a chemical product designed to remove paint, finishes, and coatings, while also cleaning the underlying surface. Chemical paint removers are advantageous because they act on any kind of geometry and ...
Nitrocellulose adhesive dispensed from a tube. Adhesive, also known as glue, cement, mucilage, or paste, [1] is any non-metallic substance applied to one or both surfaces of two separate items that binds them together and resists their separation.
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Stain removal is the process of removing a mark or spot left by one substance on a specific surface like a fabric. A solvent or detergent is generally used to conduct stain removal and many of these are available over the counter.
Traditional rebars are generally used to improve the tensile strength of the concrete in a particular direction, whereas steel fibers are useful for multidirectional reinforcement. This is one of the reasons why steel fiber reinforced (shotcrete form) concrete successfully replaced weldmesh in lining tunnels. Less labour is required.
Tiles with a thicker color layer – at least 2.5–3 mm (0.098–0.118 in) – suffer less from this effect. The surface hardness of the color layer: depends on the quality of the white cement, on water absorption and on the strength of the tile surface. If the tile has a harder surface, it will become shinier with time.