Glass is an amorphous solid material which is often transparent and has technological and decorative usage. Glass is used in many forms in day-to-day life. Today glass is well employed /utilized as a construction material. Owing to rapid urbanization, cement manufacturing is done on a large scale.
However cement manufacturing releases enormous amount of carbon dioxide which has an adverse impact on the environment. In order to address environmental effects associated with cement manufacturing, there is a need to develop an alternative way to make concrete. Extensive research is going on in the use of cement replacements using many waste materials. Large efforts have been made in the concrete industry to use waste glass as partial replacement of fine and coarse aggregates and cement.
Glass is an ideal material for recycling. The use of the recycled glass as aggregate in concrete has become popular in modern times. This will help the industries in saving the environment. Since glass is non-biodegradable material, landfills do not provide an environment friendly solution. As the waste materials when disposed to soil, it affects the soil structure and its properties. Hence there is strong need to utilize the waste glass.
Glass aggregate, a mix of colours crushed to fine particles, is used for many construction projects. The most common types used glass containers are colourless glass, green glass, and brown glass. Glass aggregate is not sharp to handle. Glass recycling uses less energy than manufacturing glass from sand, lime and soda.
There are several benefits to this technique, mainly consists of a higher final strength, lighter weight, faster fabrication and a flat surface with minimum quantities of air pockets, economical, weather and fire resistant, low maintenance, highly durable and safe, installation is quick and cost effective.
This will help in providing ideas to developers on how to improve the construction industry methods by using recycled bottles and to sustain good product performance.
This study is aimed to design a concrete mixture with recycled bottles as a fine aggregate for housing projects (finely powdered waste glasses are used as a partial replacement). On mixing the concrete with waste glass powder, the workability of concrete, the compressive strength and also the durability of concrete are expected to increase. Further, the density of glass concrete is also reduced as compared to standard mixture of concrete. Thus waste glass can effectively be used as fine aggregate replacement without much change in strength.
This paper attempts to review over the use of glass aggregates in cement mixture thereby understanding its feasibility of recycling.
Keywords- Powdered waste Glass, concrete, fine aggregates, recycled bottles, cement, workability, compressive strength, density, feasibility.
As we know that, concrete are a blend of cement, sand, coarse aggregate and water. The key factor that adds value to concrete is that it can be designed to withstand to any environmental conditions. Today global warming and environmental issues have become major problem in recent years.
Glass bottles are bad for the environment when simply thrown away, whether into the trash or by littering. As glass is a non-biodegradable material and less friendly to environment can take almost a million years to fully break down. Thus, the development of new technologies has been required. The glass contains several chemical ingredients like soda-lime silicate glass, alkali-silicate glass and borosilicate glass. These types of glass powder have been widely used in cement and aggregate mixture for construction works.
The introduction of waste glass in cement will increase the alkali content in the cement and can also increase the durability of the concrete. Hence, it is considered ideal for recycling.
The main reason of this study is to create a better environment free from polluted space and also to find a better solution for concrete mixture that can give higher strength to concrete from the waste glass product. Rather than buying an expensive admixture from the market to get great and higher strength in concrete it’s better to use some recycled admixtures (waste glass), it will not only reduce the cost of the construction but can also give higher strength and durability to concrete too.
II. Objective of Study
The experiment was carried out to overcome the problems created due to huge requirement of the raw material in construction sites and also to minimize hazards caused by Industrial waste on the environment.
- To study the existing methods of disposal of glass waste.
- To economically compare ordinary concrete with the concrete modified using glass waste.
- The primary objective of this study is to investigate the feasibility of using recycled glass as partial replacement in cement.
- Study the influence of waste glass on hardened properties of concrete mixes like density and compressive strength and splitting resistance.