Abstract
Industrial waste has been rapidly increased day by day because of the fast-growing population which results environmental pollutions. It has been recommended that the disposal of industrial waste would be greatly reduced if it could be incorporated in concrete production. In cement concrete technology, there are many possibilities to use waste materials either as cement replacement or aggregate in concrete production. Two major industrials waste are glass and marble waste. The basic objective of this investigation is to examine the characteristics of concrete waste glass (WG) as binding material in proportions 10%, 20% and 30% by weight of cement. Furthermore, to obtain high strength concrete, waste marble in proportion of 40%, 50% and 60% by weight cement as fine aggregate were used as a filler material to fill the voids between concrete ingredients. Fresh properties were evaluated through slump cone test while mechanical performance was evaluated through compressive strength and split tensile strength which were performed after 7 days, 28 days and 56 days curing. Results show that, workability of concrete decreased with incorporation of waste glass and marble waste. Furthermore, mechanical performance improved considerably up 20% and 50% substitution of waste glass and waste marble respectively. Statistical approach of Response Surface Methodology (RSM) was used optimize both waste materials in concrete. Results indicate better agreement between statistical and experimental results.
Highlights
Industrial waste has been rapidly increased day by day because of the fast-growing population which results environmental pollutions
Waste glass is being replaced as binding material in a proportion of 10%, 20% and 30%, and marble waste is being replaced as fine aggregate in the proportion of 40%, 50% and 60%
It is due to physical nature of waste glass and waste marble (Rough surface texture)
Summary
Industrial waste has been rapidly increased day by day because of the fast-growing population which results environmental pollutions. There are many possibilities to use waste materials either as cement replacement or aggregate in concrete production. Two major industrials waste are glass and marble waste. To obtain high strength concrete, waste marble in proportion of 40%, 50% and 60% by weight cement as fine aggregate were used as a filler material to fill the voids between concrete ingredients. Concrete is the most widely used construction material all over the world due to its high structural strength and durability. The worldwide usage of natural sand of the river is very high because of the extended use of concrete. The lack of enough amount of river sand to make cement concrete is disturbing the rise of the construction industry in different parts of the c ountry[1,2]. Like the rest of the construction industry, the cement industry is facing unparalleled
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