Term: Polymer concrete

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– Composition:
– Polymer concrete uses thermosetting resins for high thermal stability.
– Aggregates in polymer concrete include silica, quartz, granite, and limestone.
– Aggregates should be high quality, dust-free, and dry for optimal bond strength.
– Epoxy granite is a type of polymer concrete with exclusive use of epoxy as the polymer.
– Failure to meet aggregate quality criteria can reduce the bond strength.

– Uses:
– Polymer concrete can be used for new construction and repairing old concrete.
– It is corrosion-resistant, making it suitable for swimming pools and sewer structures.
– Ideal for manholes due to resistance to sewer gases and bacteria.
– Used as a bonded wearing course for asphalt pavement for higher durability.
– Increasingly used in machine tool bases due to superior mechanical properties.

– Properties:
– Polymer concrete has greater tensile strength than unreinforced Portland concrete.
– Offers similar or greater compressive strength compared to traditional concrete.
– Faster curing time and good adhesion to most surfaces.
– Provides long-term durability against freeze-thaw cycles and chemical resistance.
– Lightweight compared to traditional concrete, with low permeability to water.

– Specifications:
– Urea formaldehyde polymer concrete: Density 2260 kg/m, Compressive strength 37MPa.
– Polyester concrete: Compressive strength 95MPa.
– Epoxy concrete: Compressive strength 58MPa.
– Detailed specifications for polymer concrete types are provided.
– The section may require further expansion for additional details.

– References:
– Composite Structures for Civil and Architectural Engineering By D-H Kim.
– Advanced Polymer Concretes and Compounds by Oleg Figovsky and Dmitry Beilin.
– Concrete admixtures handbook: properties, science, and technology by V. S. Ramachandran.
– Design and manufacture of hybrid polymer concrete bed for high-speed CNC milling machine.
– The compressive strength of a new ureaformaldehyde-based polymer concrete in the Journal of Materials Science.

Polymer concrete (Wikipedia)

Polymer concrete, also known as Epoxy Granite, is a type of concrete that uses a polymer to replace lime-type cements as a binder. In some cases the polymer is used in addition to Portland cement to form Polymer Cement Concrete (PCC) or Polymer Modified Concrete (PMC). Polymers in concrete have been overseen by Committee 548 of the American Concrete Institute since 1971.

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