Optimum Percentage of Sawdust and Brick Ballast in Light Weight Concrete

Neeru Singla Neeru Singla,Mandeep Kumar Mandeep Kumar

doi:10.15415/jotitt.2017.52007

Neeru Singla Neeru Singla, Mandeep Kumar Mandeep Kumar

Open Access

https://doi.org/10.15415/jotitt.2017.52007

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Abstract

Construction industry relies heavily on conventional material such as cement, sand and gravel for the production of concrete The river sand and gravels which are most commonly used as fine aggregates and coarse aggregates respectively in the production of concrete, poses the problem of acute shortage in many areas, whose continued use has started posing serious problem with respect to its availability, cost and environmental impact. Attempt is being made in this project to use the locally available waste materials to replace the river sand and gravels to produce light weight and low cost concrete. Sawdust and Brick ballast are easily affordable at low costs, which are partially replaces with river sand and gravels respectively for making concrete. Natural sand and Gravels have been partially replaced (4% SD 8% BB, 4% SD 16% BB, 4% SD 24% BB, 8% SD 8% BB, 8% SD 16% BB, 8% SD 24% BB, 12% SD 8% BB, 12% SD 16% BB and 12% SD 24% BB. by using M30 grade of concrete) with sawdust and broken brick ballast respectively. For this, thirty concrete cubes of size 150mm X 150mm X 150mm have been casted and water cement ratio of 0.42 has been used. Water reducing admixture is used to increase the workability. Slump test, Compacting factor test and compressive strength at (28 days) of specimens having above combinations have been compared with control specimens. The workability and compressive strength gradually decreases for the increasing the replacement percentages. The optimum mix found to produce M30 grade of concrete is 8% of sawdust and 16% of Brick ballast.

Highlights

Journal on Today’s Ideas – Tomorrow’s Technologies, As the time is passing, due to the development of infrastructure the constructionVol 5, No 2, industry is growing at a vast rate
Saw dust and brick ballast are the waste materials which can be replaced with fine aggregate and coarse aggregate respectively in concrete
That the cost of the whole concrete is largely depends upon the aggregates used Both these materials are light in weight, so that it is helpful to construct light weight structures These studies try to match social need for safe and economic disposal of waste materials with the help of environmental friendly industries, which need better and cost-effective construction materials

Summary

INTRODUCTION

Journal on Today’s Ideas – Tomorrow’s Technologies, As the time is passing, due to the development of infrastructure the construction. There are many types of waste materials available in our environment, which can be replaced with aggregates in concrete for making concrete. These waste light weight materials are sawdust, fly ash, Rice husk ash, cow dung and over burnt bricks etc. If these materials are directly disposed in our environment it causes many problems. During manufacturing of bricks in a kiln, high amount of over burnt bricks are produced which acts as a waste These bricks can be recycled by using with replacement of coarse aggregates in concrete. That the cost of the whole concrete is largely depends upon the aggregates used Both these materials are light in weight, so that it is helpful to construct light weight structures These studies try to match social need for safe and economic disposal of waste materials with the help of environmental friendly industries, which need better and cost-effective construction materials

LITERATURE REVIEW

METHODOLOGY

AND DISCUSSION

CONCLUSIONS

Findings

REFRENCES