Low carbon bricks developed using construction and demolition waste

Researchers have developed a technology to produce energy-efficient walling materials using construction and demolition (C&D) waste and alkali-activated binders.
These are called low-C bricks, do not require high-temperature firing, and avoid the use of high-energy materials such as Portland cement.
This technology will also mitigate the disposal problems associated with the C&D wastes.
Conventionally, building envelopes consist of masonry walls built with burnt clay bricks, concrete blocks, hollow clay blocks, fly ash bricks, lightweight blocks, and so on.
The envelopes spend energy during their production, thus incurring carbon emission consume mined raw material resources which lead to unsustainable constructions.
The construction industry generates vast amounts (70 – 100 million tonnes per annum) of construction and demolition waste (CDW).