The production of eco-friendly concrete has been made possible by reusing agricultural and industrial wastes. This paper presents an experimental investigation of the characteristics of lightweight foamed concrete (LWF) produced from a protein-based foaming agent and including granulated blast furnace slag (GGBS). fly ash (FA). rice husk ash (RHA) and palm oil fuel ash (POFA) at vario... https://spencertifieders.shop/product-category/video-cameras/