What is Polymer Concrete:
Types of Polymer Concrete:-
- Polymer Impregnated Concrete (PIC)
- Polymer Cement Concrete (PCC)
- Polymer Concrete (PC)
- Partially impregnated and surface coated polymer concrete
1. Polymer Impregnated Concrete (PIC):
Different types of polymers used in this type of concrete is given below.
- t – butyl Styrene
- Methyl methacrylate (MMA)
- Acrylonitrile etc.
Uses of Polymer Impregnated Concrete:-
- For impregnation of bridge decks.
- For Irrigation Construction such as Dams, Canals, Weir, Barrage, etc.
- For Structural Members
- For Marine construction and Underwater Construction
- For the repair Works of construction.
Properties of Polymer-Impregnated Concrete:
- Compressive Strength:- 130MPa
- Tensile Strength:- 11.5MPa
- Flexural Strength:- 18.5MPa
- Elastic Strength:- 45MGPa
- Compressive Strength:- 40MPa
- Tensile Strength:- 3.0MPa
- Flexural Strength:- 5.2MPa
- Elastic Strength:- 25MGPa
2. Polymer Cement Concrete (PCC):
The monomers used in Polymer Cement Concrete are as follows.
- Polyester – Styrene
- Epoxy Styrene
- Vinylidene Chloride
Uses of Polymer Cement Concrete:
- Flooring of food processing and chemical industries.
- Water resistant floors
- Decks over steel bridges
- Repair of sea defense structures.
3. Polymer Concrete (Resin Concrete):
- Polymer is used instead of cement as a binder in concrete.
- Polymer or Monomer is Mix with Aggregate by hand or by machine.
- Then it is molded or cast in Wooden box (Farma) or Steel Box (steel Farma) as per required shape.
- Mould realizing agent is spread on formwork (box) due to that The formwork does not stick to the concrete and can be easily separated.
- Polymer strictly attached with aggregate and make hardened polymer concrete. This process is called polymerization.
- Accelerators are added to speed up the process.
- Aggregates to be used in concrete should be dry. Because the polymerization process does not occur in wet aggregate.
Polymer are given below which are used in process.
- Methyl methacrylate
- Polyester string
- Epoxy string
- Urea formaldehyde
- Phenol formaldehyde, Etc.
Uses of Polymer Concrete or Resin concrete:
- Repair of overlays, Air field pavements
- Concrete pipes
- high voltage insulator
Sulphur Infiltrated Concrete:
- In this test the specimen is dried at 121°C in a heating cabinet for 24 hours after 24 hours of wet Curing.
- Then after the dry test samples are kept in a sulphur molten container at a temperature of 121°C for 3 hours.
- Then after remove the samples from the container, wipe the sulphur from the surface and keep specimen for cool at room the temperature for 1 hour.
- Then after The specimens weighed, From which the weight of the entering sulphur is obtained.
- In this Method The specimen of dry concrete is placed in an airtight container with a vacuum pressure of 2 mm mercury and kept for 2 hours.
- Then after the vacuum is removed, the specimen are immersed in the molten Sulphur for half an hour.
- Then after the specimen are taken out, the sulphur wiped off the surface, and allowed to cool at room temperature.
- High resistance to freezing and thawing.
- Corrosion resistance is high.
- Permeability decreases of concrete.
Uses of Sulphur Infiltrated Concrete:
- For making Precast roof elements, fencing posts, pig pipes
- For making Railway sleeper
- In industries where high corrosion resistance is required.
- Precast concrete is cheaper than commercial concrete.
What are the Applications of Sulphur Infiltrated Concrete?
The various applications of sulphur infiltrated concrete are listed here.
1. Sulphur infiltrated concrete was used for making of precast roof elements, fencing posts, pig pipes, etc.
2. Sulphur infiltrated concrete was used for making of railway sleepers.
3. It is used where high corrosion resistance is required.
What is the density for sulphur infiltrated concrete in kg/m3?
The density of sulphur infiltrated concrete is varies from 2200 kg/m3 to 2400 kg/m3.
What are the main components of Sulphur infiltrated concrete?
The main components of sulphur infiltrated concrete are listed here.
2. Fine Aggregate
3. Coarse Aggregate