Cenocell is a

patented A patent is a type of intellectual property that gives its owner the legal right to exclude others from making, using, or selling an invention for a limited period of time in exchange for publishing an enabling disclosure of the invention."A p ...

concrete-like structural material that is manufactured without the addition of

Portland cement Portland cement is the most common type of cement in general use around the world as a basic ingredient of concrete, mortar, stucco, and non-specialty grout. It was developed from other types of hydraulic lime in England in the early 19th cen ...

. It was invented by

Mulalo Doyoyo Mulalo Doyoyo (born 13 August 1970) is a South African engineer, inventor, and professor. Doyoyo is a researcher in applied mechanics, ultralight materials, green building, renewable energy, and other fields of engineering. He has lectur ...

at the

Georgia Institute of Technology The Georgia Institute of Technology, commonly referred to as Georgia Tech or, in the state of Georgia, as Tech or The Institute, is a public research university and institute of technology in Atlanta, Georgia. Established in 1885, it is part of ...

. Cenocell is produced from a

chemical reaction A chemical reaction is a process that leads to the chemical transformation of one set of chemical substances to another. Classically, chemical reactions encompass changes that only involve the positions of electrons in the forming and break ...

involving

fly ash Fly ash, flue ash, coal ash, or pulverised fuel ash (in the UK) plurale tantum: coal combustion residuals (CCRs)is a coal combustion product that is composed of the particulates (fine particles of burned fuel) that are driven out of coal-fired ...

bottom ash Bottom ash is part of the non- combustible residue of combustion in a power plant, boiler, furnace or incinerator. In an industrial context, it has traditionally referred to coal combustion and comprises traces of combustibles embedded in for ...

and various

organic chemicals In chemistry, organic compounds are generally any chemical compounds that contain carbon-hydrogen or carbon-carbon bonds. Due to carbon's ability to catenate (form chains with other carbon atoms), millions of organic compounds are known. The s ...

. The chemical reaction produces foaming, and results in grey slurry that resembles bread dough. The mixture is then cured in ovens at temperatures near 100°C. The result is a homogenous mixture with a high strength and low weight.

References

{{reflist Concrete Building materials Composite materials Sustainable building Heterogeneous chemical mixtures South African inventions

See also

References