Paper Presentation on Polymer Concrete - For Civil Engineers
Abstract: In Concrete Technolgy there are many types of Concretes here we are mainly discussing about Polymer Concrerte. Polymer concrete is a composite material. A graded mixture coarse and fine aggregates bound together by an appropriate organic resin system. Polymer concrete is a relatively low-cost composite material system that has been developed to be a technically viable alternative to porcelain for most high voltage electrical insulation applications.
Polymer composites appear as useful materials for repair and protection of building structures, as well as for manufacturing pre-cast elements. In the case of pre-cast elements as well as repair materials, the usefulness and durability of polymer composites depend on the selection of the material composition for obtaining the composite with controllable properties Polymer Concrete consists of a polymer binder which may be a thermoplastic but more frequently is a thermosetting polymer, and a mineral filler such as aggregate, gravel and crushed stone.
PC has higher strength, greater resistance to chemicals and corrosive agents lower water absorption and higher freeze-thaw stability than conventional Portland cement concrete. Polymer modified concrete may be divided into two classes; polymer impregnated concrete and polymer cement concrete. The first is produced by impregnation of pre-cast hardened Portland cement concrete with n monomer that is subsequently converted to solid polymer. To produce the second, part of the cement binder of the concrete mix is replaced by polymer Both have higher strength, lower water permeability, better resistance to chemical, and greater freeze-thaw stability than conventional concrete.