An Experimental Study of Marble Powder as Partial Replacement of Cement in Concrete
Abstract
Most commonly used material on our planet is first water and second concrete. Environmental problem occur due to concrete production such as finite resources, ocean acidification and climate changes. In these problems major pollutant is Co2 emission from cement. China is on no. one position in cement production and india is on second position worldwide. When cement is mixed with water for production of concrete then Co2 gas is released in the environment. One ton of cement produce .75 to .85 ton Co2. To reduce the environment pollution and to reduce the construction cost, some alternative of concrete should be discover. In present scenario to reduce co2 emission cement can be replaced by some alternative material that have some cementing properties like fly ash, rice husk and marble powder. MP is a waste material that is releases by marble industry because of its production, cutting, surface dressing, polishing etc. this contain 20-25% marble powder slurry and 5-10% of broken edges according to central pollution control board. This MP can cause environmental problem for human, plant and earth due to its chemical property and fineness. So there is a lot of scope in research on use of MP in concrete production as replacement of cement. The object of this experimental work is to evaluate the effects on the concrete MP in concrete grade M25 with opc of 43grade. In this study MP used in concrete with partial replacement of cement which varies from 4% to 20% at an interval of 4% by weight of cement. Compressive strength of cube and flexural strength of beam is check at 7 days, 14days & 28 days. MP is cheaply available from processing plant, so by replacing cement with MP environment pollution and construction cost is reduced.