Comparative Calculation Of Carbon Footprint OfConventional Self-Compacting Concrete And Green Self-Compacting Concrete Using Dholpur Sandstone Slurry
- Vol.34(4), Oct-Dec
- Pune NICMAR 2019
- 79-89p.
Self-Compacting Concrete (SCC) is the new generation concrete, which is used globally in the concrete sector. The capability offlow in between narrow reinforcement is the prime reason for its growing popularity. Use of maximum amount of powder content makes this concrete workable and increases its usefulness in congested reinforced concrete structures like column, tunnel, metro, bridges. The primary powder content in SCC is cement. Increasing demand for cement content is directly proportional to increase in carbon footprint. Carbon footprint is a stimulant for Assessment ofLife Cycle (LCA) ofconcrete. Self-compacting concrete may only be accountable as sustainable concrete, when cement content is decreased up to the minimum requirement as per grade ofconcrete. Introducing other alternative powder material will reduce the cement content along with maintaining fresh properties, strength characteristics and durability properties. Dimensional stones (Granite, Marble, Limestone and Sandstone) are the predominant construction materials since ancient times for plenty ofavailability from the natural rocks. In different stages ofprocessing ofstone, various by-products are generated. These by-products are discarded as waste materials which create environmental hazards. Sandstone slurry waste is used as partial replacement ofcement at 5%, 15%, 25% and 35%. In this research, COemission of2conventional self-compacting concrete is compared with self-compacting concrete made with Dholpur sandstone slurry. COemission stages include production ofraw 2material, transportation ofmaterial and production ofconcrete. In this work authors intend to draw a comparative calculation ofCOemission from rich SCC using 233>550kg/mcement and green SCC using 380-315 kg/mcement with the use ofsandstone slurry waste as partial replacement ofcement in Self-Compacting Concrete