What are the properties of polymer concrete?
Properties of Polymer Concrete
- Rapid Curing: Curing effect is rapid at the ambient temperatures from –18 to +40°C (0 to 104°f).
- Strength:
- Good Adhesion:
- Durability:
- Low Permeability and Water Tightness:
- Lightweight:
Is type of monomer which is used as polymer impregnated concrete?
The Monomers like acrylate, styrene and the vinyl chlorides etc are used commonly for impregnating into concrete. Another widely used monomer is Methyl Methacrylate (MMA).
Which polymer is used in polymer concrete?
Polymer concrete is created by different resins and monomers, such as epoxy, polyester, acrylic and methyl methacrylate. These polymers usually have good resistance against water and chemical materials; but their chemical resistance reduces by warming.
What is polymer impregnated concrete?
Polymer impregnated concrete (PIC) is a precast and cured hydrated cement concrete which has been impregnated with a low viscosity monomer and polymerized -i.n-situ. This material is the more developed of the composites. The largest improvement in structural and durability properties have been obtained with PIC.
What is polymer concrete explain?
Polymer concrete is an alternative to portland cement that is used to bond a mixture of aggregates together with epoxy binders. It is used in construction projects to provide added strength and can be modified with a range of resins.
How polymer impregnated concrete is prepared and explain its various stages?
Introduction to Polymer Impregnated Concrete: Then a low viscosity liquid monomer or pre polymer partially or fully is impregnated or diffused into the pore system of the hardened cement composites or cement concrete and then polymerised using radiation or by the application of heat or by chemical initiation.
Why is polymer concrete used?
Uses. Polymer concrete may be used for new construction or repairing of old concrete. It is especially suited to the construction and rehabilitation of manholes due to their ability to withstand toxic and corrosive sewer gases and bacteria commonly found in sewer systems.
How does polymer concrete work?
Polymer concrete is prepared by mixing a polymeric resin with aggregate mixture. Microfillers are also employed sometimes to fill the voids contained in the aggregate mixture. ], and gravel are some of the materials reported by various authors. ].
How is polymer impregnated concrete used in construction?
The applications of polymer impregnated concrete in different areas of construction are explained below: 1. Surface Impregnation of Bridge Decks: The bridge decks are allowed to undergo impregnation to avoid the intrusion of moisture, chemicals as well as chloride ions.
What is the strength of styrene impregnated concrete?
When the thermal catalytic process of polymerisation was applied on the same type of specimen, they gave compressive strength as 130 MPa whereas control (un-impregnated) specimens gave compressive strength of 38 MPa only. Styrene impregnated specimens also showed similar trend, but with somewhat lower strength.
What is the flexural strength of polymer concrete?
The polymer concrete gains cube compressive strength more than 100N/mm 2. This strength is irrespective of the strength of the conventional concrete. 2. The flexural strength of polymer impregnated concrete is usually about 15N/mm 2. This is slightly higher than the highest strength plain concrete that is made from normal ingredients.
What are the advantages of using polymer concrete?
Polymer concrete can be applied in very thin cross-sections. It reduces the infiltration of carbon dioxide, protects the concrete from carbonation hence the loss of alkalinity. This concrete offers outstanding resistance against corrosion and chemical attack.