Albert T. Yeung Department of Civil Engineering University of … · GDP and per capita GDP of HK...

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Use of green materials in maintenance and construction Albert T. Yeung Department of Civil Engineering University of Hong Kong Green Buildings: Better Quality of Life June 11, 2010

Transcript of Albert T. Yeung Department of Civil Engineering University of … · GDP and per capita GDP of HK...

Page 1: Albert T. Yeung Department of Civil Engineering University of … · GDP and per capita GDP of HK Year 1991 1993 1995 1997 1999 2001 2003 2005 2007 GDP (HK$ billion) 800 1000 1200

Use of green materials in maintenance and construction

Albert T. YeungDepartment of Civil EngineeringUniversity of Hong Kong

Green Buildings: Better Quality of LifeJune 11, 2010

Page 2: Albert T. Yeung Department of Civil Engineering University of … · GDP and per capita GDP of HK Year 1991 1993 1995 1997 1999 2001 2003 2005 2007 GDP (HK$ billion) 800 1000 1200

GDP and per capita GDP of HK

Year

1991 1993 1995 1997 1999 2001 2003 2005 2007

GD

P (H

K$

billi

on)

800

1000

1200

1400

1600

1800

Per

capi

ta G

DP

(HK

$ th

ousa

nd)

140

160

180

200

220

240

Gross domestic productPer capita gross domestic product

Page 3: Albert T. Yeung Department of Civil Engineering University of … · GDP and per capita GDP of HK Year 1991 1993 1995 1997 1999 2001 2003 2005 2007 GDP (HK$ billion) 800 1000 1200

Construction & demolition

Construction & demolition

?

Page 4: Albert T. Yeung Department of Civil Engineering University of … · GDP and per capita GDP of HK Year 1991 1993 1995 1997 1999 2001 2003 2005 2007 GDP (HK$ billion) 800 1000 1200

Strategic Landfills in Hong Kong

West NT Landfill at Nim Wan (WENT Landfill)

South East NT Landfill in Tseung Kwan O (SENT Landfill)

North East NT Landfill at Ta Kwu Ling (NENT Landfill)

Page 5: Albert T. Yeung Department of Civil Engineering University of … · GDP and per capita GDP of HK Year 1991 1993 1995 1997 1999 2001 2003 2005 2007 GDP (HK$ billion) 800 1000 1200

Solid Waste Disposal at Landfills

Year

1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007

Qua

ntity

(mill

ion

tonn

es)

0

2

4

6

8

10DomesticCommercialIndustrial ConstructionSpecial

Page 6: Albert T. Yeung Department of Civil Engineering University of … · GDP and per capita GDP of HK Year 1991 1993 1995 1997 1999 2001 2003 2005 2007 GDP (HK$ billion) 800 1000 1200

Construction Waste Site Clearance

Tunneling

Demolition

Excavation

Page 7: Albert T. Yeung Department of Civil Engineering University of … · GDP and per capita GDP of HK Year 1991 1993 1995 1997 1999 2001 2003 2005 2007 GDP (HK$ billion) 800 1000 1200

Annual Production Rate of C&D Materials

Year

1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007

Ann

ual P

rodu

ctio

n (m

illio

n to

nnes

)

0

4

8

12

16

20

24

C&D MaterialsC&D Waste

Page 8: Albert T. Yeung Department of Civil Engineering University of … · GDP and per capita GDP of HK Year 1991 1993 1995 1997 1999 2001 2003 2005 2007 GDP (HK$ billion) 800 1000 1200

10 Mega Infrastructure Projects

二千五佰億元項目 Total worth of HK$250 Billion

Page 9: Albert T. Yeung Department of Civil Engineering University of … · GDP and per capita GDP of HK Year 1991 1993 1995 1997 1999 2001 2003 2005 2007 GDP (HK$ billion) 800 1000 1200
Page 10: Albert T. Yeung Department of Civil Engineering University of … · GDP and per capita GDP of HK Year 1991 1993 1995 1997 1999 2001 2003 2005 2007 GDP (HK$ billion) 800 1000 1200

Solutions

Minimize the generation of construction wasteRe-generate useful materials from demolition waste

Page 11: Albert T. Yeung Department of Civil Engineering University of … · GDP and per capita GDP of HK Year 1991 1993 1995 1997 1999 2001 2003 2005 2007 GDP (HK$ billion) 800 1000 1200

ObjectivesPromote sustainability of our societyProlong the useful life of infrastructure constructedReduce the maintenance and construction costsReduce maintenance frequencyReduce maintenance and construction timeReduce construction hazards and nuisance

Page 12: Albert T. Yeung Department of Civil Engineering University of … · GDP and per capita GDP of HK Year 1991 1993 1995 1997 1999 2001 2003 2005 2007 GDP (HK$ billion) 800 1000 1200

Recycling of Waste Materials

Electric wires

Aluminum windows

Concrete

Page 13: Albert T. Yeung Department of Civil Engineering University of … · GDP and per capita GDP of HK Year 1991 1993 1995 1997 1999 2001 2003 2005 2007 GDP (HK$ billion) 800 1000 1200

North Tsing Yi Reclamation

Page 14: Albert T. Yeung Department of Civil Engineering University of … · GDP and per capita GDP of HK Year 1991 1993 1995 1997 1999 2001 2003 2005 2007 GDP (HK$ billion) 800 1000 1200

Tuen Mun Area 38 Stage 2 Reclamation

33 hectares36 million m3

Page 15: Albert T. Yeung Department of Civil Engineering University of … · GDP and per capita GDP of HK Year 1991 1993 1995 1997 1999 2001 2003 2005 2007 GDP (HK$ billion) 800 1000 1200

C&D Material Recycling Facility at Tuen Mun Area 38

Page 16: Albert T. Yeung Department of Civil Engineering University of … · GDP and per capita GDP of HK Year 1991 1993 1995 1997 1999 2001 2003 2005 2007 GDP (HK$ billion) 800 1000 1200

Road Curbs

Page 17: Albert T. Yeung Department of Civil Engineering University of … · GDP and per capita GDP of HK Year 1991 1993 1995 1997 1999 2001 2003 2005 2007 GDP (HK$ billion) 800 1000 1200

Road Bricks: Examples

PolyU

HKUST

Page 18: Albert T. Yeung Department of Civil Engineering University of … · GDP and per capita GDP of HK Year 1991 1993 1995 1997 1999 2001 2003 2005 2007 GDP (HK$ billion) 800 1000 1200

Recycled Glass

Page 19: Albert T. Yeung Department of Civil Engineering University of … · GDP and per capita GDP of HK Year 1991 1993 1995 1997 1999 2001 2003 2005 2007 GDP (HK$ billion) 800 1000 1200

Terrazzo Tiles

Page 20: Albert T. Yeung Department of Civil Engineering University of … · GDP and per capita GDP of HK Year 1991 1993 1995 1997 1999 2001 2003 2005 2007 GDP (HK$ billion) 800 1000 1200

Recycled Wood

Page 21: Albert T. Yeung Department of Civil Engineering University of … · GDP and per capita GDP of HK Year 1991 1993 1995 1997 1999 2001 2003 2005 2007 GDP (HK$ billion) 800 1000 1200

Recycled Wood

Page 22: Albert T. Yeung Department of Civil Engineering University of … · GDP and per capita GDP of HK Year 1991 1993 1995 1997 1999 2001 2003 2005 2007 GDP (HK$ billion) 800 1000 1200

Road Repair

In 10 minutes

Page 23: Albert T. Yeung Department of Civil Engineering University of … · GDP and per capita GDP of HK Year 1991 1993 1995 1997 1999 2001 2003 2005 2007 GDP (HK$ billion) 800 1000 1200

Penetrating Power

Page 24: Albert T. Yeung Department of Civil Engineering University of … · GDP and per capita GDP of HK Year 1991 1993 1995 1997 1999 2001 2003 2005 2007 GDP (HK$ billion) 800 1000 1200

Waterproofing

Remove the old existing roof or wall tilesRemove the bitumen-base waterproofing layerRe-apply the bitumen-base waterproofing layerRe-install the roof or wall tiles

Page 25: Albert T. Yeung Department of Civil Engineering University of … · GDP and per capita GDP of HK Year 1991 1993 1995 1997 1999 2001 2003 2005 2007 GDP (HK$ billion) 800 1000 1200

New Green Material

Page 26: Albert T. Yeung Department of Civil Engineering University of … · GDP and per capita GDP of HK Year 1991 1993 1995 1997 1999 2001 2003 2005 2007 GDP (HK$ billion) 800 1000 1200

Roof Waterproofing

Page 27: Albert T. Yeung Department of Civil Engineering University of … · GDP and per capita GDP of HK Year 1991 1993 1995 1997 1999 2001 2003 2005 2007 GDP (HK$ billion) 800 1000 1200

Waterproofing with Reflex Topcoat

Before

After

Page 28: Albert T. Yeung Department of Civil Engineering University of … · GDP and per capita GDP of HK Year 1991 1993 1995 1997 1999 2001 2003 2005 2007 GDP (HK$ billion) 800 1000 1200

ExternalWall

Page 29: Albert T. Yeung Department of Civil Engineering University of … · GDP and per capita GDP of HK Year 1991 1993 1995 1997 1999 2001 2003 2005 2007 GDP (HK$ billion) 800 1000 1200

FingerMapFingerMap®®

Mobile biometric Mobile biometric authentication authentication systemsystem

MifareMifare®® card card readerreaderRadioRadio--frequency frequency fingerprint sensorfingerprint sensorLife recognitionLife recognitionGPSGPSLocal timeLocal time

Page 30: Albert T. Yeung Department of Civil Engineering University of … · GDP and per capita GDP of HK Year 1991 1993 1995 1997 1999 2001 2003 2005 2007 GDP (HK$ billion) 800 1000 1200

Conclusions

Green materials are now available on the market for construction and maintenance of infrastructuresUtilization of modern technologies can enhance our sustainability