Polymer concrete

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    11-Jan-2017
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Transcript of Polymer concrete

  • Polymer concreteTypes of polymer concrete, properties, Applications.A.Pavan kumarB.Tech, Civil Engineering, SVEC, TPT, AP

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  • Benefits of Polymer ConcreteStrengthFire and heat resistanceDurabilityThinner applicationLower absorbencyLess chalking in outdoor exposureChemical resistanceAbrasion resistanceTemperature stabilityMold ability Faster cure ratesMachinability

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  • Polymer concrete(PC)Polymer concrete is a versatile, durable, composite material produced by mixing a variety of mineral fillers with a synthetic or natural resin binding agent.It is also known as Resin Concrete

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  • latex-modified concrete (LMC): also known as polymer Portland cement concrete. Conventional concrete made by replacing part of mixing water with a latex.Polymer-impregnated concrete (PIC):produced by impregnating or infiltrating a hardened concrete with a monomer and subsequently polymerizing the monomer in situ.Polymer concrete (PC): formed by polymerizing a mixture of a monomer and aggregate (no other bonding material)

    Types of PC:

  • Depending on the materials employed, PC can develop compressive strengths of the order of 140 MPa (20,000 psi) within hours or even minutes .

    LMC possess excellent bonding ability to old concrete, and high durability to aggressive solutions; it has therefore been used mainly for overlays in industrial floors, and for rehabilitation of deteriorated bridge decks.

    In the case of PIC, by effectively sealing the micro cracks and capillary pores.

    Significance

  • Commercial products are available with a variety of formulations, some capable of hardening to 105 MPa(15,000 psi) within a few minutes without thermal treatment.

    Epoxy resins are higher in cost but offer advantages such as adhesion to wet surfaces.

    Styrene monomer, and methyl methacrylate (MMA) with benzoyl peroxide catalyst and an amine promoter are often used.

    Properties of PC:

  • Stress Strain diagram for polymer composition

  • Polymer concrete vs B30 concrete

  • Material Features:High resistance to chemical and biological attackLightweight compared to cement concrete productsExcellent noise and vibration absorptionExcellent dielectric propertiesGood weathering and UV resistanceZero water absorptionCan be cut with masonry drills and grindersCan be recycled as rubble or crushed for use as road foundationApproximately 4 times the flexural strength of cement concreteGood thermal properties and stabilityUltra smooth finish which encourages efficient hydraulic flow

  • Material Properties

    Bending strength Shear strength Compressive strength Modulus of elasticity Specific gravity Water absorption Operating temperature Surface roughness20 MPa 20 MPa 90 MPa 22,000 MPa 2,200 kg/m3 0.05% by weight up to 80C 25 um

  • Applications:Used for pump bases, flooring blocks, chemical containment, trench drains and more.

    Solid surface countertops for modern kitchens and baths.

    With its decorative finishes and excellent resilience, polymer concrete is ideal for many ornamental applications including park benches, outdoor furniture, and waste containers.

    Commonly used in areas subject to heavy wear and high loadings such as car parks, roadways and industrial areas.

  • Thank uuu !!!!!!!

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