Types of Concrete

Types of Concrete

The various types of concrete used in the construction industry are:

1. PCC - Plain or Ordinary Concrete
2. RCC - Reinforced Cement Concrete
3. PSC - Prestressed Concrete
4. Precast Concrete
5. Light – Weight Concrete
6. Fibre Reinforced Concrete
7. High–Strength Concrete
8. High-Performance Concrete
9. High-Density Concrete
10. Air Entrained Concrete
11. Polymer Concrete
1. Polymer concrete
2. Polymer cement concrete
3. Polymer impregnated concrete
12. Self – Consolidated Concrete
13. Roller Compacted Concrete
14. Rapid Strength Concrete

Plain Cement Concrete

Plain Cement Concrete (PCC) is also called as Cement Concrete (CC) or Blinding Concrete. It consists of cement, sand and coarse aggregates mixed with water in the specified proportions

 

Reinforced Cement Concrete

Reinforced cement concrete is a composite material made up of cement concrete and reinforcement in which the concrete resists compression with reinforcement resisting the tension and shear

 

Prestressed Concrete

A prestressed concrete may thus be defined as a concrete in which stresses of suitable magnitude and distribution are introduced to counteract, to a desired degree, the stresses resulting from external loads. This phenomenon of prestressing will make the lower section of the concrete member to be stronger against the tension.

 

Precast Concrete

Precast concrete is a construction product produced by casting concrete in a reusable mold or "form" which is then cured in a controlled environment, transported to the construction site and lifted into place ("tilt up"). In contrast, standard concrete is poured into site-specific forms and cured on site. Lightweight Concrete

 

Fibre Reinforced Concrete

Fiber-reinforced concrete (FRC) is concrete containing fibrous material which increases its structural integrity. It contains short discrete fibers that are uniformly distributed and randomly oriented. Fibers include steel fibers, glass fibers, synthetic fibers and natural fibers – each of which lend varying properties to the concrete. In addition, the character of fiber-reinforced concrete changes with varying concretes, fiber materials, geometries, distribution, orientation, and densities.

 

High-Strength Concrete

High-performance means that the concrete has one or more of the following properties: low shrinkage, low permeability, a high modulus of elasticity, or high strength. ... High-strength concrete is typically recognized as concrete with a 28-day cylinder compressive strength greater than 6000 psi or 42 Mpa.

 

High-Performance Concrete

High performance concrete is a concrete mixture, which possess high durability and high strength when compared to conventional concrete. This concrete contains one or more of cementious materials such as fly ash, Silica fume or ground granulated blast furnace slag and usually a super plasticizer.

 

High-Density Concrete

High density concrete is a concrete having a density in the range of 6000 to 6400 kg/cu. m. High density concrete is also known as Heavy weight concrete. High density concrete is mainly used for the purpose of radiation shielding, for counterweights and other uses where high density is required.

 

Air Entrained Concrete

Air-entrained Concrete. Air-entrained concrete contains billions of microscopic air cells per cubic foot. These air pockets relieve internal pressure on the concrete by providing tiny chambers for water to expand into when it freezes.

 

Lightweight Concrete

Concrete is considered to be lightweight is the density is not more than 2200kg/m³ (the density of normal weight concrete is assumed to be between 2300kg/m³ and 2400kg/m³) and a proportion of the aggregate should have a density of less than 2000kg/m³. 

Lightweight aggregate concrete can be produced using a variety of lightweight aggregates. Lightweight aggregates originate from either:

• Natural materials, like volcanic pumice.
• The thermal treatment of natural raw materials like clay, slate or shale i.e. Leca.
• Manufacture from industrial by-products such as fly ash, i.e. Lytag.
• Processing of industrial by-products such as pelletised expanded slab, i.e. Pellite.

Polymer Concrete

Polymer concrete the aggregates will be bound with the polymer instead of cement. The production of polymer concrete will help in the reduction of volume of voids in the aggregate.

The available polymer concrete materials are polymer impregnated concrete (PIC), polymer cement concrete (PCC), polymer concrete (PC) and, partially impregnated and surface coated polymer concrete.

Self-consolidating concrete

Self-consolidating concrete or self-compacting concrete (commonly abbreviated to SCC)[1] is a concrete mix which has a low yield stress, high deformability, good segregation resistance (prevents separation of particles in the mix), and moderate viscosity (necessary to ensure uniform suspension of solid particles during transportation, placement (without external compaction), and thereafter until the concrete sets).

 

Pervious Concrete

Pervious concrete (also called porous concrete, permeable concrete, no fines concrete and porous pavement) is a special type of concrete with a high porosity used for concrete flatwork applications that allows water from precipitation and other sources to pass directly through, thereby reducing the runoff from a site ..

 

Roller Compacted Concrete

Roller-compacted concrete has the same basic ingredient as conventional concrete: cement, water, and aggregates, such as gravel or crushed stone. But unlike conventional concrete, it's a drier mix—stiff enough to be compacted by vibratory rollers. Typically, RCC is constructed without joints.

 

Rapid Strength Concrete

This type of concrete is able to develop high resistance within few hours after being manufactured. This feature has advantages such as removing the formwork early and to move forward in the building process very quickly, repaired road surfaces that become fully operational in just a few hours. Ultimate strength and durability can vary from that of standard concrete, depending on compositional details.