Polymer concrete is a composite material that combines aggregates (such as sand or gravel) with a polymer resin binder. It offers several advantages over traditional concrete, including increased strength, durability, and resistance to chemical corrosio
During the last few years many examinations has been done in polymer concrete
Polymer concrete is innovative architectural material due to its high effecting as compare to other conventional materials. Over conventional Portland Cement Concrete Polymer concrete has many advantages, e.g. high compressive, tensile and flexural strengths, short curing time, impact resistance, chemical resistance and freeze-thaw durability. Polymer concrete has increased strength characteristics as well as improved resistance to environmental factors and a faster curing time. With such improved properties, polymer concrete became a fast growing area of research.
CONVENTIONAL CONCRETE Conventional concrete is known to be weak in tensile strength, brittle and easily erodible by chemicals and high velocity water flow. This is becoming an ever growing problem in today’s society with the need for the least amount of maintenance and longer lasting structures. Generally, polymer concrete is a composite material in which the aggregate is bound together in a matrix with a polymer binder.
The polymerized monomer/Aggregates acts as binder for the aggregates and the resulting composite is called “Concrete.” Classification of polymer concrete Materials There exist three principal classes of polymer concrete materials:
(a) Polymer-Portland Cement Concrete (PPCC)
(b) Polymer impregnated Concrete (PIC)
(c) Polymer Concrete (PC) (d)Polymer Portland Cement Concrete(PPCC)
A monomer, pre polymer of dispersed polymer is incorporated into a Portland cement mix and a polymer network formed in situ during curing of the concrete.
Polymer-Impregnated Concrete (PIC): Previously formed concrete is impregnated with a monomer which is subsequently polymerized in situ. Polymers enhances the Strength Characteristics of the original concrete.
Polymer Concrete (PC): It is also known as Resin Concrete. A polymer is used to bind an aggregate together. Uses and Applications The influence of various parameters such as resin type (vinyl ester, polyester and epoxy), resin contents.
Here are some general specifications of polymer concrete:
1. Composition: Polymer concrete typically consists of aggregates (such as quartz, granite, or limestone) mixed with a polymer resin binder, which can be epoxy, polyester, or vinyl ester-based.
2. Mixing Ratio: The mixing ratio of polymer concrete varies depending on the specific application and desired properties. Typically, it ranges from 60-80% aggregates to 20-40% polymer resin binder.
3. Strength: Polymer concrete has higher compressive and flexural strength compared to traditional concrete. The strength can range from 50 MPa (megapascals) to 100 MPa or even higher, depending on the formulation.
4. Durability: Polymer concrete exhibits excellent resistance to chemical corrosion, making it suitable for applications in aggressive environments, such as chemical plants, wastewater treatment plants, and industrial flooring.
5. Water Absorption: Polymer concrete has low water absorption properties, which helps in reducing the risk of freeze-thaw damage and increases its durability.
6. Curing Time: The curing time for polymer concrete is relatively shorter compared to traditional concrete. It can typically cure within 24-48 hours, depending on the ambient temperature and the specific polymer resin used.
7. Application: Polymer concrete is commonly used in various construction applications, including industrial flooring, drainage systems, bridge decks, precast components, and repair works.
Please note that the specific specifications and properties of polymer concrete can vary depending on the manufacturer, the type of polymer resin used, and the intended application.
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