Engineers increased cement strength by 40% with shrimp shells

Engineers increased cement strength by 40% with shrimp shells

Researchers from Washington State University and the Pacific Northwest National Laboratory have created tiny crystals and whale fibres from seafood waste, and nanoparticles are increasing cement strength almost 1.5 times.

In their work published in the journal Cement and Concrete Composites, researchers have studied the behaviour of nanoparticles from whale; unlike cellulose, which is also used to increase the strength of cement, this material has an additional set of atoms at the molecular level, which enables scientists to control the charge on the surface of molecules and therefore their behaviour in cement solution.

The study showed that adding treated nanocrystals to cement improves its properties, including its consistency, capture time, strength and durability; they saw an increase of 40 per cent in the strength of concrete and a 12 per cent increase in its capacity to compress; and the modified composition has been confirmed for an hour; this is necessary to increase the range of transport and construction in a hot climate.

Crabs, shrimps and lobsters have about 20-30% of the hits, and most of the rest are calcium carbonate, another useful supplement to cement, with 13 to 17.5 million kg of fishery waste produced annually, most of which are simply dumped at sea.

Cement production is a carbon-intensive process that requires the use of fossil fuels to achieve the required high temperatures.

The authors believe that replacing the limestone with the nanoparticles of whale would help to reduce energy costs, the amount of waste from seafood, and increase the durability and durability of cement structures.