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Additional recommended knowledge
Polymer concrete is part of group of concretes that use polymers to supplement or replace cement as a binder. The types include polymer-impregnated concrete, polymer concrete, and polymer-portland-cement concrete. Polymers in concrete have been overseen by ACI Committee 548 since 1971.
Polymer concrete is composed of aggregates that include silica, quartz, granite, limestone, and other high quality material. The aggregate must be of good quality, free of dust and other debris, and dry. Failure of these criteria can reduce the bond strength between the polymer binder and the aggregate.
Advantages of polymer concrete include:
Polymer concrete may be used for new construction or repairing of old concrete. The adhesion properties of polymer concrete allow patching for both polymer and cementious concretes. The low permeability of polymer concrete allows it to be used in swimming pools, sewer pipes, drainage channels, and other structures that contain liquids.
Some safety issues arise out of the use of polymer concrete. The monomers can be volatile, combustible, and toxic. Initiators, which are used as catalysts, are combustible and harmful to human skin. The promoters and accelerators are also dangerous.
Polymer concretes also cost significantly more than conventional concrete.
|This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "Polymer_concrete". A list of authors is available in Wikipedia.|