Author : Kotecha Bhushan Pratapchand 1
Date of Publication :6th April 2017
Abstract: The aim of project is making concrete on the cost of making ecofriendly relation and also reducing overall cost of the project and improve the workability and strength. Construction is a major economic activity. In India, it accounts for over 6% of Gross Domestic Product (GDP). A construction project has to deal with environmental aspects. The threat of global warming is real. According to a report by Environmental Protection Agency (EPA) of the U.S.A. Greenhouse gases are accumulating in the earth’s atmosphere as a result of human activities, causing global mean surface temperatures and sub-surface ocean temperatures to rise. With the cost of construction increasing rapidly, today the industry demands that the concrete used for building structures should not only have high strength but also have high durability. Traditionally, construction activities have relied on using normal Portland cement. Production of one tone of normal Portland cement releases approximately one tone of CO2 into the atmosphere it decreases amount of natural resources. There are many supplementary cementitious materials (SCM) used in producing concrete, like, Fly Ash, Ground Granulated Blast Furnace Slag it would help conserve natural resources. It would also save energy required for producing normal Portland cement, help the cause of environment, provide superior concrete structures and benefit the clients. We will make different combination of cement by adding different proportion of GGBS and Fly Ash. we have to calculate optimum dry density of these different proportion for this, each proportion of cement is physical hand mix in dry start and put in Dry Loose Bulk Density Flask (DLBT). These are different combination of DLBT flask available such as 3, 15,30lit after we have to calculation the optimum dry density for each proportion. And the strength is calculated for each of the mix. Curing is done by placing specimens at room temperature. The specimen are then tested at the interval of 7, 14 and 28 days, it includes compressive strength, Water permeability test, Modulus of elasticity and Rapid chloride penetration test.
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