Utilization of Waste Glass as Cement Replacement in PPC Concrete

In the Present era, the globalizations due to the rapid growing of construction are insufferable burden on environment and rapid weakening of respective natural resources. All construction activities require more or less natural material like aggregates wh cause rapid weakening of the same due to high consumption. On the other hand production of one ton cement is responsible for emission of 0.9 ton CO2. Glass is a widely used product throughout the world and it is used in many forms in day-to versatile, durable and reliable. Glass has limited life duration and after use it is either stock piled or sent to landfills. Since glass is non-biodegradable, the large amount of glass is disposed of in landfill it’s not provide an environment friendly solution. Hence, there is strong need to utilize waste glasses. In present experimental investigation -waste glass powders have been used as a partial replacement to the concrete ingredient i.e. cement and the mechanical properties like compressive strength and split tensile strength are measured. For checking strength effect of replacement of cement by glass powder, the cement is replaced at 05%, 10%, 15%, 20% and 25%.

In the Present era, the globalizations due to the rapid growing of construction are insufferable burden on environment and rapid weakening of respective natural resources. All construction activities require more or less natural material like aggregates which cause rapid weakening of the same due to high consumption. On the other hand production of one ton cement is responsible for emission of 0.9 ton CO2. Glass is a widely used product throughout the world to-day life; it is versatile, durable and reliable. Glass has limited life duration and after use it is either stock piled or sent to biodegradable, the large amount of glass is disposed of in landfill it's not ly solution. Hence, there is strong need to utilize waste glasses. In present waste glass powders have been used as a partial replacement to the concrete ingredient i.e. cement and the mechanical properties ngth and split tensile strength are measured. For checking strength effect of replacement of cement by glass powder, the cement is replaced at

Waste glass, Compressive strength, Split
Concrete is a primary building construction material in the world , consumed man made material About at 11 billion tons or approximately 1.7 tons per every human being was consumed concrete in the world. Production of cement is an energy intensive and highly polluting process which contributes about 5 to 8% to global CO 2 emission and account s for 3% of total (5% of industrial) energy consumption in world wide. Production of each ton of cement emits one ton of carbon dioxide (CO Manufacturing of cement is also an energy intensive process, which ranks third after aluminum and steel production in terms of energy consumption. Close to 5.5 million BTU (British thermal unit) of energy is consumed for production of a ton of cement. The energy used for production of cement accounts for more than 90% of the total energy required for production of cement. In spite of major efforts in recent decades, significant gain in the fuel of cement production plants has been realized. The use of solid waste materials or industrial by products as partial replacement for cement in concrete is a viable strategy for reducing the use of Portland cement, and thus reducing the environmental and energy impacts of concrete production. Glass is a widely used product throughout the world; it is versatile, durable and reliable. The uses of glass ranges considerably, therefore waste glass is unnecessary, stockpiled or land filled. About million tons of waste glass is generated and around large percent of this glass is disposed of in landfills. This pattern has influenced environmental organizations to pressure the professional community to lower the amount of glass being unnecessary as well as find use to the non-recycled glass in new applications. In relation, the recycling of waste glass as a constituent in concrete gives waste glass a sustainable unconventional to land filling and therefore makes it economically possible. The proposed investigation of utilizing waste glass powder(GLP) in concrete as wide. Production of each ton of cement emits one ton of carbon dioxide (CO 2 ) to atmosphere. Manufacturing of cement is also an energy intensive process, which ranks third after aluminum and steel production in terms of energy consumption. Close to ion BTU (British thermal unit) of energy is consumed for production of a ton of cement. The energy used for production of cement accounts for more than 90% of the total energy required for production of cement. In spite of major efforts in significant gain in the fuel-efficiency of cement production plants has been realized. The use of solid waste materials or industrial by products as partial replacement for cement in concrete is a viable strategy for reducing the use of Portland d thus reducing the environmental and energy impacts of concrete production. Glass is a widely used product throughout the world; it is versatile, durable and reliable. The uses of glass ranges considerably, therefore waste glass is or land filled. About million tons of waste glass is generated and around large percent of this glass is disposed of in landfills. This pattern has influenced environmental organizations to pressure the professional community to lower the being unnecessary as well as find use recycled glass in new applications. In relation, the recycling of waste glass as a constituent in concrete gives waste glass a sustainable unconventional to land filling and therefore makes it ossible. The proposed investigation of utilizing waste glass powder(GLP) in concrete as   Table 2.  1.56:3 )and water-cement ratio(W/C) of 0.44 by weight taking with 0.6% super plasticizer dose by weight of cement. 7) Water -Potable water was used for mixing the concrete mix in entire investigation and for curing the concrete in the determination of the optimal percentage of stone dust as fine aggregate replacement.

Experimental design
The cube sand cylinders were cast in steel moulds of inner dimensions of cube, 150 x 150 x 150 mm, and cylinder 150 mm diameter x 300 mm long. All the materials are weighted as per mix proportion of 1:1.56:3 with a W/C ratio of 0.44 which correspond to M25 grade of concrete. Cement is replaced by Waste glass powder. Each mix comprises of various percentages of cement replacement material in increasing order i.e. 5% 10%, 15%, 20%, and 25% respectively in replacement. The specimens were cured for a period of 7days, 14 days and 28 days.

III. Result and Discussion
A) Workability -Workability is property of concrete which determine ease in mixing, placing and compaction of concrete. The results of workability in terms of slump for concrete made using waste glass as cement replacement are shown in table 4. The same results are given in figure -1, for visual observation and having the idea about variation pattern. It was observed that at constant dose of Super plasticizer (0.6%) workability of concrete made using waste glass as cement replacement was increased with replacement level. This increase was due to the increasing content of waste glass with is hydrophobic in nature. Resulting is more availability of water as compare to conventional concrete.  It is evident from table 5 compressive strength of concrete made using waste glass as cement replacement was more than conventional concrete at all the replacement level of 28 days, however strength is maximum at 15% replacement level.

IV. Conclusion
On the basis of above investigation it can be concluded that -