To reduce the environmental pollution caused by cement manufacturing and to save both the economy and resources. it is required to use alternative waste materials of pozzolanic nature to partially replace cement in the construction industry. Among different cement replacement materials being used now-a-days. marble dust is the one on which limited research has been done especially on ... https://www.bekindtopets.com/super-value-Keychron-M4-Wireless-4K-Mouse-flash-choice/