sustainability of construction materials

power point

1. A Presentation on in BGS Institute of Technology B. G. Nagara by Dr. Yashwanth. M. K Associate Professor Department of Civil Engineering Maharaja Institute of Technology Mysore Mandya-571 477 SUSTAINABLE CONSTRUCTION MATERIALS

2. BASIC NEEDS OF HUMAN BEING ?

3. FOOD SHELTER

4. RAPID URBANIZATION Courtesy : Manhattan Wallpaper.com

5. CONSTRUCTION MATERIALS Courtesy : CONSTRUCTION tuts

6. What are the Inputs required to manufacture basic construction materials ? Electricity Fossil Fuels: Coal, Oil & Gas Natural Resources Raw Materials Ores and Minerals Wood Wooden logs

7. CEMENT- World Wide Courtesy : A report from Merchant & Research Consulting Limited

8. CEMENT- Indian Context Courtesy : A report from Statista

9. STEEL Courtesy : www.google.com

10. STEEL

11. AGGREGATES

12. 19 Years at the current rate of Production How long will India's Oil reserves last?

13. Scenario of Iron Ore Reserves ? India will run out of Iron Ore in 28 Years !

14. Coal Reserves will last 80 Years How long will India's Coal reserves last?

15. Losing land area equal to Greece Year – on – Year Global deforestation 13 Million Hectares every year

16. CEMENT Courtesy : A report by Concrete Construction Magazine CARBON DIOXIDE EMISSION

17. STEEL Courtesy : A report by Concrete Construction Magazine CARBON DIOXIDE EMISSION Carbon dioxide emissions from the steel industry are projected to jump to 837 million tons over the next three decades from 242 million tons now as India’s demand for steel more than quadruples to about 490 million tons , The Energy and Resources Institute said in a report .

18. RIVER SAND Courtesy : A report by Ajit Narayan EXTRACTION OF RIVER SAND

19. QUARRYING OF STONES STONES Courtesy : A report from Virtue Industries

20. Courtesy : Carbon Footprint of Building Materials (Green Building Calculator)

21. GLOBAL WARMING

22. GLOBAL WARMING

23. GLOBAL WARMING FROM VARIOUS SECTOR

24. Is their any prevention?

25. SUSTAINABLE CONSTRUCTION MATERIALS

26. SUSTAINABILITY

27. Sustainability  is often defined as meeting the needs of the present without compromising the ability of future generations to meet their needs.  Courtesy : Zenbird - Discovering a sustainable future from Japan TRIPLE BOTTOM LINE or THREE PILLARS OF SUSTAINABILITY

28. CEMENT SUPPLEMENTARY CEMENTITIOUS MATERIALS GREEN CEMENT FLY ASH GGBS BAGASSE ASH

29. CEMENT 2.CARBON CAPTURING TECHNOLOGIES IN CEMENT INDUSTRY GREEN CEMENT 1 . Oxy-fuel combustion Technology This method involves using oxygen instead of air during the cement kiln combustion process, resulting in a flue gas stream consisting mainly of CO 2 . This concentrated CO 2  stream can then be captured, compressed, and stored or utilized in various applications, preventing its release into the atmosphere .

30. CEMENT 2.CARBON CAPTURING TECHNOLOGIES IN CEMENT INDUSTRY GREEN CEMENT 2. Pre-calciner Technology Pre-calciner technologies involve introducing calcined raw materials into the cement production process, which reduces the carbon intensity of the final product. These technologies leverage the use of alternative fuels and mineralizers, which not only lower CO 2  emissions but also enhance the sustainability of cement manufacturing.

31. CEMENT 2.CARBON CAPTURING TECHNOLOGIES IN CEMENT INDUSTRY GREEN CEMENT 3. Alternative Fuels Incorporating alternative fuels into the cement production process is another key strategy for carbon capture. Instead of relying solely on traditional fossil fuels, such as coal, cement plants are increasingly turning to renewable and low-carbon alternatives, including biomass, waste-derived fuels, and even non-recyclable plastics.

32. CEMENT 2.CARBON CAPTURING TECHNOLOGIES IN CEMENT INDUSTRY GREEN CEMENT 4. Carbon Capture & Storage (CCS) System Carbon capture and storage systems are pivotal in the endeavor to curb carbon emissions in the cement industry. CCS involves capturing CO 2  from cement production, compressing it, and safely storing it underground, preventing its release into the atmosphere. This technology not only reduces carbon emissions but also holds the potential for carbon utilization, where CO 2  can be transformed into valuable products, such as construction materials.

33. STEEL CARBON CAPTURING TECHNOLOGIES IN INDIAN STEEL INDUSTRY GREEN STEEL In India, the steel industry contributes to around 2% of the Gross Domestic Product (GDP) and is critical to the country’s progress. In the fiscal year (FY) 2023, the production of finished steel in India was  122.3 million tonnes , an increase of about   7.6%   over the previous year. India’s steel sector accounts for about 12% of India’s carbon dioxide (CO2) emissions, with an emission intensity of  2.55 tonne of CO2/ tonne of crude steel (tCO2/ tcs )   compared with the global average emission intensity of 1.85 tCO2/ tcs . The steel industry is responsible for around 240 million tonnes of CO2 emissions annually and we expect this to double at an exponential rate by 2030, considering the Indian government’s infrastructure development targets. There are multiple technology pathways that could help in the transition from traditional methods to low emission intensity technology like green hydrogen , renewable energy , carbon capture , usage and storage technology with Blast Furnace (BF)/Basic Oxygen Furnace (BOF) or Direct Reduced Iron (DRI)-Electric Arc Furnace (EAF) , scrap-based Electric Arc Furnace (EAF) etc. Of these technologies, the green hydrogen-based route is the cleanest method of producing steel.

34. STEEL GREEN STEEL Commercial production of steel using green hydrogen has not started in the country. However, following 2 pilot projects on CCUS have been undertaken: Tata Steel commissioned a 5 tonnes per day (TPD) carbon capture plant at its Jamshedpur Works. Jindal Steel Works (JSW) has implemented carbon capture and storage facility with 100 tonnes per day (TPD) capacity at its Direct Reduced Iron (DRI) plant at Dolvi . The captured carbon is to be utilized in food and beverages industry. Further, Saarloha (Kalyani Group) has recently pioneered the production of green steel and launched its two green steel brands, namely, KALYANI FeRRESTA and KALYANI FeRRESTA PLUS, with reduced emissions due to usage of 70% scrap and renewable energy in Electric Arc Furnace.

35. STEEL GREEN STEEL Other steps taken in the country for promoting decarbonization in steel industry include: Steel Scrap Recycling Policy, 2019 enhances the availability of domestically generated scrap to reduce the consumption of coal in steel making. Ministry of New and Renewable Energy (MNRE) has announced National Green Hydrogen Mission for green hydrogen production and usage. The steel sector has also been made a stakeholder in the Mission. Motor Vehicles (Registration and Functions of Vehicles Scrapping Facility) Rules September 2021 , shall increase availability of scrap in the steel sector. National Solar Mission launched by MNRE in January 2010 promotes the use of solar energy and also helps reduce the emission of steel industry. Perform, Achieve and Trade (PAT) scheme , under National Mission for Enhanced Energy Efficiency, incentivizes steel industry to reduce energy consumption. The steel sector has adopted the Best Available Technologies (BAT) available globally, in the modernization & expansions projects. Japan’s New Energy and Industrial Technology Development Organization (NEDO) Model Projects for Energy Efficiency Improvement have been implemented in steel plants.

36. STEEL CARBON CAPTURING TECHNOLOGIES IN STEEL INDUSTRY GREEN STEEL Courtesy : Industry reports JMK research

37. AGGREGATES 1. ALTERNATIVE MATERIALS GREEN AGGREGATES RECYCLED AGGREGATES RCA RFA PLASTIC AGGREGATES

38. AGGREGATES 1. ALTERNATIVE MATERIALS GREEN AGGREGATES ELECTRONIC WASTE AGGREGATES AGGREGATES FROM INDUSTRIAL WASTES