Effects of Waste Glass Powder on Compressive Strength of Concrete

In this research an attempt is made to study the effect of waste glass power in Concrete using waste glass, which is non biodegradable and not suitable to landfill. This study is carried out to use such waste materials into construction industries so that our environment is free to one of the major pollutant produced by the manufacturing industries. The main aim of this study is to utilization of waste glass power as a partial replacement of fine aggregate. In this study the aim is to determine the percentage of glass replacement, resulting in optimal compressive strength. Concrete nominal mix of M20 with different percentages of Glass power has been evaluated as per IS 2386(part IV) and IS 383. Waste glass powder was replace with fine aggregate in various percentages such as 5%,10%,15%,20%,25%,30%,35%,40%,45%, and 50%. Reference concrete mix is also made for comparative reasons.


INTRODUCTION
Waste management has become a significant issue in today's growing society. As in India there is no such procedure to manage the waste properly it is caused a significant damage to the environment as well as the human health. Now we need some new and innovative technologies to reduce this waste so that it is used by other industries to fulfill their requirements.
Glass is an amorphous solid that has been found in various forms for thousands of years and has been manufactured for human use since 12,000 BC. Glass is one the most versatile substances on Earth, used in many applications and in a wide variety of forms, from plain clears glass to tempered and tinted varieties, and so forth. The interest of the construction community in using waste or recycled materials in concrete is increasing because of the emphasis placed on sustainable construction. Glass is an inert material which could be recycled and used many times without changing its chemical property (Aimin Xu and Ahmad shayam, 2004). In this present research some efforts have been made for the concrete industries so that this harmful waste can be used as useful.
Various research are carried out to use waste glass power as partial replacement of cement but there are almost no detailed investigation made so far on the performance of concrete replacing fine aggregate.
Concrete is the second largest material in the world and placed after water, the most useful for human as well as animals.
Fine aggregate is mainly finding from river and now a day's become highly expensive and scare hence there are large demand of alternative material from waste industries.
In this experimental study waste glass are collected from the local market and waste dumped areas. This waste is crushed in Los angles machine and finally convert to sand size.

Purpose and methodology
The main purpose of the study is to utilize the glass waste as a partial replacement of fine aggregate and also check the performance of glass concrete with respect to the control mix in strength consideration.

SPECIFIC GRAVITY OF WASTE GLASS POWER AND NATURAL SAND
This test is done with reference to SP 206-7.1 and IS 2386 part IV-1963 with the help of standard pycnometer Table 3: Specific gravity of sand Table 4: Specific gravity of glass  From the above data the specific gravity of sand is found 2.66 and for waste glass power it is 2.63

Physical properties of glass powder and fine aggregate
Compositions Name Sio 2 Silica Ferrous oxide SO 3 Sulpher trioxide Chromium oxide All other oxides Table 5: Physical properties of glass powder and fine

Cement
The cement used in this experimental study for production of concrete was ordinary Portland cement    Table 7 : notification of symbol  Concretes containing glass powder as fine aggregates, with a mixing ratio of 5%, 10%, 15%, 20%, 25%, 30%, 35%, 40%, 45% and 50%. In this experimental study it was seen that there is a increasing trend of compressive strength than that of plain concrete with the addition of waste glass powder up to a optimum percentage of 25% of 28 days.    This experimental study was found optimum percentage of glass waste power was found to be 25% by weight of fine aggregate at which addition of glass waste power increase the cube compressive strength of concrete in 28 day to an extent of 11.56% which is approximately equal to M 30 grade of concrete. Results proved that adding of glass waste power with 25% of weight of fine aggregate leads to improvements in compressive strength. Hence, glass waste power may be used as a way for safe disposal of waste glass.