sustainablematerials-for buildings180922094544.pptx

sustainable materials

1. UNIT-2 EMERGING BUILDING MATERIALS “SUSTAINABLE MATERIALS”

2. SUSTAINABLILITY Defined as meeting the needs of present generations without compromising the ability of future generations to meet their needs.

3. Sustainable building or green building refers to the structure which are both environmentally responsible & resource efficient throughout a building life cycle. Sustainable building design involves balance between home building & suatainable environment.

4. OBJECTIVES Low impact on natural environment. Energy efficient. Minimizing usage of water. Protecting occupant’s health & increasing productivity. Minimizing waste.

5. GOALS Environmental, economic & social benefits. Taking advantage of renewable resources. Sunlight as solar energy. Reduction of rainwater as run off. Using plants & trees or roof gardens.

6. SUSTAINABLE MATERIAL Any material that can be put to effective use in the present without compromising its availability for use by latter generations. Mainly renewable materials or materials which can be recycle & reused.

7. RENEWABLE MATERIALS REUSE FROM WASTE MATERIALS MATERIALS SIGNIFICANTLY OF PLANT ORIGIN PRODUCTS OF RECYCLED MATTER SOLAR ENERGY, WIND ENERGY, BIO-GAS. DISMANTLED & REUSED AGAIN. WOOD, NATURAL FIBERS, POLYMERS ETC., OLD PLUMBINGS, DOORS, CRUSHED GLASS, WOOD CHIPS ETC.,

8. Wool brick Obtained by adding wool and a natural polymer found in seaweed to the clay of the brick, 37% More strength than burnt bricks Resistant for cold and wet climate They are dry hard & don’t need to be fired like other bricks. 1/15/2014 9

9. Sustainable Concrete Crushed glass Wood chips or slag - a byproduct of steel manufacturing. Reduces the emission of CO2 1/15/2014 10

10. Solar Tiles Exist to simply protect a building They spend a large portion of the day absorbing energy from the sun . Fully integrated into the building. Protects from weather. 1/15/2014 11

11. Paper Insulation Made from recycled newspapers and cardboard Then filled with chemical foam Insect resistant &fire retardant 1/15/2014 12

12. Triple-Glazed Windows Supe r - e f f i cie n t windows Stops heat to enter the building & from direct sunlight 1/15/2014 13

13. Low emissivity coatings to glass prevent heat from escaping.

14. Merits 16 Efficient Technologies Easier Maintenance Return On Investment Improved Indoor Air Quality Energy Efficiency Water Efficiency

15. Waste Reduction Temperature Moderation Water Conservation Economical Construction For Poor Healthier Lifestyles and Recreation Improved Health. 17

16. DEMERITS INITIAL COST IS HIGH AVAILABILITY OF MATERIALS NEED MORE TIME TO CONSTRUCT NEED SKILED WORKER 18

17. City & Guilds Construction Bricks – wool bricks, unfired clay bricks Blocks – hemp blocks, aerated concrete, insulated concrete form (ICF) Mortar – lime, Portland cement substitute, pulverised fuel ash Timber – FSC® sourced Concrete – use recycled reinforcement, cement with lime or pulverised fuel ash Flooring – cork, FSC® timber, locally sourced stone tiles, British-manufactured ceramic tiles Windows – timber manufactured, triple glazed Insulation – sheep’s wool, hemp wool, timber fibre, paper, denim wool

18. City & Guilds Construction Heating – air-source heat pump, ground-source heat pump, solar water heating, wood-fuelled heating, thermal store Electricity – photovoltaic (solar) panels, wind turbines Straw – straw blocks as structure Roof coverings – Welsh slate, green roof