Green Building And LEED

Transcription

1 Green Building And LEED November 8, 2011 Cabrillo College Ben Licari Director of Geology & Exploration Granite Rock Company Graniterock AGENDA Past and Present Internship Program Technical Jobs Green Building LEED Rating System Examples Green Materials Building Materials Challenges Aggregate Mining Then Aggregate Mining Now Reclaimed Waste Pond 1

2 Mine Reclamation Mine Reclamation Construction Then Construction Now Internship Program Technical Positions 2

3 Questions? GREEN Building What is Green Building? LEED Rating System Build It Green Rating System Examples Green Materials Building Materials Challenges Green Building? Green Building Myths It s weird looking It s all solar panels It s all recycled materials It s too costly It doesn t affect me Why Green Building? Saving Energy Saving Water Improving Quality of Life 3

4 Brickell Financial Center, Miami LEED Certified Gold LEED Leadership in Energy and Environmental Design LEED Categories NC New Construction EB Existing Buildings CI Commercial Interiors CS Core & Shell ND Neighborhood Developments H Homes LEED 2009 Award Levels Total Points = 110 LEED Certified LEED Silver LEED Gold LEED Platinum (100 Core & 10 Innovation) 40 Points 50 Points 60 Points 80 Points Moore Foundation Conference Center Audubon Center, Los Angeles LEED Certified Gold LEED Certified Platinum 4

5 SMUD Building, Sacramento SMUD Building, Sacramento South Facing Side North Facing Side LEED Certified Gold LEED Certified Gold Genzyme Headquarters, Cambridge LEED Certified Platinum LEED Rating System Sustainable Sites Water Efficiency Energy & Atmosphere Materials & Resources Indoor Environmental Quality Innovation in Design San Jose West Valley Branch Library What about homes? LEED Certified 29 Points 5

6 Enduring Advice Maintain a Sense of Balance Understand Synergies in Building Systems Look for 80% solutions, Keep it Simple Technology is not always the answer Focus on what you can do, not what you can t Points Are Not the Point Green Building Materials Erosion Control Local Landscaping Materials Concrete It s not just for shoes anymore Concrete Floors 6

7 Concrete Countertops Pervious Concrete Pervious Concrete Permeable Paving Systems Regular Asphaltic Concrete Pervious Concrete Rainwater Harvesting Cistern Storage 7

8 Porous Asphalt Pavement Typical Application Reduce Runoff and Erosion Insulated Concrete Forms Concrete vs. Cement Basic Cement Chemistry Most materials in concrete require little processing Low energy of production Manufactured and harvested locally Low transportation energy Contributes to local economy Limestone = CaCO 3 or CaO + CO 2 So, for every pound of cement produced, about a pound of CO 2 is released into the atmosphere. CO 2 8

9 How did the CO 2 Get There? Coral Reef A Natural Process Seawater Absorbs CO 2 CO 2 Coral Process + minerals = Coral Reef Carbon Dioxide and Cement U.S. cement industry Approximately 1.5 percent of California CO 2 emissions Global cement industry Approximately 5% of the global CO 2 emissions Some Good News Cement Facts Cement is responsible for 5% (2.5 billion tons) of CO 2 emissions worldwide: China billion tons India. 155 million tons United States million tons California million tons Source: National Science Foundation Source: U.S. Geological Survey Exporting Pollution Aggregate Materials from Mexico & Canada Local Materials Which is the real Cement Ship? Cement from China Cement Plant in China Production 3,300 Tons per day S.S. Palo Alto Cement Cargo Ship 9

10 Alternate Fuels Supplementary Cementitious Material (SCM) Fly ash From coal-fired electrical power plants Blast Furnace Slag From steel manufacturing Silica Fume From silicon manufacturing Coal Fly Ash Bay Bridge SCM Issues Coal Fly Ash RCRA Hazardous Waste? Steel Furnace in Japan 10

11 Carbon Sequestration A Zero-Sum Game Cement from CO 2 Remember This? A Natural Process Capture CO 2 and convert it into Seawater Absorbs CO 2 CO 2 Coral Process + minerals = Coral Reef Green Cement Coral Reef Mineral Carbonation Process Science Fresher Water (stripped of Ca 2+ & Mg 2+ ) Bubble in CO 2 from flue gas Process Reactor Cooling seawater Power plant Flue gas Seawater Reactor CO 2(g) CO (flue gas) 2(aq) ~(H 2 CO 3(aq) ) H 2 CO 3(aq) + H 2 O (l) HCO - 3 (aq) + H 3 O + (aq) HCO - 3 (aq) + OH - (aq) (increase alkalinity) CO 3 2- (aq) + H 2 O (aq) Mg 2+ & Ca 2+ + CO 2-3 (aq) (Mg,Ca)CO 3 SCM Seawater w/ Mg & Ca 11

12 Pilot Plant The Pilot CO 2 source is designed for California s largest power provider Moss Landing Emissions 3.4 million tons CO 2 per year (or 700,000 cars per year) (~1000MW Base-load) Moss Landing, CA Source: National Energy Technology Laboratory, 2007 One last shot The Elephant in the Room My mother never saw the irony in calling me a S.O.B. Jack Nicholson Questions? Challenges in Selecting Building Materials blicari@graniterock.com 12

13 Challenge #1: Life Cycle Challenge #1: Life Cycle Laguna Beach Fire Challenge #2: Heat Island Challenge #3: Thermal Mass South Facing Side North Facing Side SMUD Building Sacramento Challenge #4: Regional Materials Challenge #5: Reduce Runoff S.S. Palo Alto Cement Cargo Ship Which is the real Cement Ship? 13

14 Challenge #6: Brownfield Sites Challenge #6: Brownfield Sites Challenge #7: Recycled Content Challenge #7: Recycled Content Challenge #8: High Density 54% of growth in California from births Challenge #8: High Density 86% of people say their ideal home is single family detached. 66% of people say this even if they have a significant commute. 14

15 Questions? 15