What is geopolymer brick?

What is geopolymer brick?

Abstract : Geopolymer bricks is the new innovation in the field of brick industry. Geopolymer bricks contain flayash as the source material and an alkaline activator for the activation of polymerization reaction.

How do you make a geopolymer brick?

These bricks can be manufactured without firing, but using geopolymer as binder.

1. 1 Iron ore tailings.
2. 2 Slag sand.
3. 3 Fly ash.
4. 4 Ground granulated blast furnace slag (GGBS)
5. 5 Sodium hydroxide.
6. 6 Sodium silicate.
7. 7 Water.

How is geopolymer concrete made?

Geopolymer concrete is a type of concrete that is made by reacting aluminate and silicate bearing materials with a caustic activator. Commonly, waste materials such as fly ash or slag from iron and metal production are used, which helps lead to a cleaner environment.

What is meant by geopolymer?

From Wikipedia, the free encyclopedia. Geopolymers are inorganic, typically ceramic, alumino-silicate forming long-range, covalently bonded, non-crystalline (amorphous) networks. Obsidian (volcanic glass) fragments are a component of some geopolymer blends.

Is geopolymer concrete expensive?

For M30 grade of GPC concrete the cost of production is marginally (1.7%) higher than OPC concrete of the same grade whereas for M50 grade, the cost of OPC concrete is 11% higher than GPC of same grade.

How strong is geopolymer concrete?

Properties for Rock-based geopolymer cement (Ca,K)-poly(sialate-disiloxo) shrinkage during setting: < 0.05%, not measurable. compressive strength (uniaxial): > 90 MPa at 28 days (for high early strength formulation, 20 MPa after 4 hours).

How strong is geopolymer?

Geopolymers can be tailored to have highly workable properties as a result of its water retention ability, while having a shear stress of ∼80 Pa at a shear rate of 110 s−1 and compressive strengths of ∼40 MPa at 7 days curing ages (Geddes et al., 2018).

Why geopolymer concrete is not used?

Due to following reason mention below: Difficult to Create – geopolymer concrete requires special handling needs and is extremely difficult to create. It requires the use of chemicals, such as sodium hydroxide, that can be harmful to humans.

What is the difference between polymer and geopolymer?

Definitions of the term geopolymer ‘… Geopolymers consist of a polymeric Si–O–Al framework, similar to zeolites. The main difference to zeolite is geopolymers are amorphous instead of crystalline.

What is ltgs brick made of?

This brick uses a very cheap material available in great quantity: lateritic clay earth. This special and abundant earth, mixed with a simple geopolymer binder is compressed to give the shape of a brick then heated in a furnace. Heated at 85°C, LTGS brick is water stable and has enough compressive strength to build a wall.

Why choose ltgs brick for your new home?

But beyond its strength identical to traditional brick, its lower manufacturing cost and its low energy consumption, a house built out of LTGS brick will be naturally air-conditioned and fresher.

What are the zeolitic properties of brick?

These geopolymers, which constitutes the matrix of the brick, have zeolitic properties, i.e. the property “to breathe”, to be in constant hygrometrical balance with the interior of a dwelling in order to be an excellent insulation material against heat.