Approximately 544 million tonnes of fly ash (FA) are generated annually worldwide. 80% of which is disposed of in landfills. Thus. using FA as a replacement for cement has turned out to be popular in construction industries around the world because of its strong properties and crucial role in decreasing the volume of pollutants and CO2 produced by cement production. https://hollandscountryclothinges.shop/product-category/balaclavas/