OVERVIEW OF PRESENTATION - GreenCape · OVERVIEW OF PRESENTATION Introduction to Green Building...
Transcript of OVERVIEW OF PRESENTATION - GreenCape · OVERVIEW OF PRESENTATION Introduction to Green Building...
OVERVIEW OF PRESENTATION
Introduction to Green Building
Construction Waste Management
Demolitions Waste Management
C&D Waste Case Study
Concrete
Steel
Timber
Masonry
Discussion
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PRESENTATION OUTLINE
GREEN BUILDING
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GREEN BUILDING IN THE C&D WASTE SECTOR
GREEN BUILDING IN THE C&D WASTE SECTOR
WHAT IS A GREEN BUILDING
Green building incorporates design, construction and operational practices that significantly reduce or
eliminate the negative impact of development on the environment and people. Green buildings are energy
efficient, resource efficient and environmentally responsible.
Green Building Council of South Africa
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Ozone-depleting CFC’s
timber harvestwatermunicipal solid waste
material consumption
CO2 emissionselectricitytotal energy
39% 70% 40% 40%
65% 12% 25% 50%
IMPACT OF THE CONSTRUCTION INDUSTRY
In South Africa, operation of the building sector accounts for approximately 23% of greenhouse gas emissions
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GREEN BUILDING IN THE C&D WASTE SECTOR
MISSION:
“The Green Building Council of South Africa will lead the transformation of the South African
property industry to ensure that all buildings are designed, built and operated in an
environmentally sustainable way that will allow South Africans to work and live in healthy,
efficient and productive environments”
VISION:
“To promote, encourage and facilitate green building in the South African property and
construction industry through market-based solutions, by:
Promoting the practice of green building in the commercial property industry
Facilitating the implementation of green building practice by acting as a resource centre,
Enabling the objective measurement of green building practices by developing and
operating a green building rating system, and
Improving the knowledge and skills base of green building in the industry by enabling and
offering training and education”
MEMBER OF WORLD GBC
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GREEN BUILDING IN THE C&D WASTE SECTOR
The Green Star SA system is:
Comprehensive rating system for evaluating the environmental design and performance of
South African buildings.
The system validates the environmental initiatives of new commercial office buildings or
base building commercial office refurbishments (DESIGN or AS BUILT ratings available).
Criteria include energy, materials and water efficiency, indoor environment quality and
resource conservation.
The SA system has built on existing systems and tools including the Australian Green Star,
the British BREEAM system and the north American LEED system.
GREEN BUILDING COUNCIL OF SOUTH AFRICA
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GREEN BUILDING IN THE C&D WASTE SECTOR
Set benchmarks and standards of measurement through …
Establishing a common “language” for green building (e.g. no ‘greenwash’)
Promote integrated, whole-building design
Recognise environmental leadership
Raise awareness of green building benefits
Reduce the environmental impact of development
GOALS OF THE RATING SYSTEM
Green Star SA is not a design guide – provides a framework for creative interaction
and synergy between a multi-disciplinary team
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GREEN BUILDING IN THE C&D WASTE SECTOR
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GREEN BUILDING IN THE C&D WASTE SECTOR
C&D WASTE MANAGEMENT
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GREEN BUILDING IN THE C&D WASTE SECTOR
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This credit encourages and recognizes management practices that minimize
the amount of construction waste going to disposal (includes demolitions
and construction phase).
Points are awarded for the Contractor implementing a Waste Management
Plan (WMP) which must describe how waste is monitored, which type of
waste will be collected for recycling or for reuse, and who is responsible for
aspects of the plan.
This WMP must be implemented prior to construction commencing.
The Contractor will need to retain waste records and issue quarterly reports to
the building owner.
Projects are awarded according to the percentage (%) by mass of demolition
and construction waste which is reused or recycled.
CONSTRUCTION WASTE MANAGEMENT
GREEN BUILDING IN THE C&D WASTE SECTOR
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CONSTRUCTION WASTE MANAGEMENT
GREEN BUILDING IN THE C&D WASTE SECTOR
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Bricks and concrete used for clean-fill
Timber salvaged for new structural or material use; timber waste ground
into mulch or compost
Crushed concrete used for road-base
Plasterboard crushed for soil conditioner or manufacture of new
plasterboard
Steel, aluminum and other metals for reuse in the manufacture of new
metal products
Foam insulation and packaging for new insulation or soft structural forms
Pallets for reuse
Clean plastic for packaging new packaging materials
Carpet and ceiling tiles may be taken back for reconditioning/recycling by
the manufacturer
Light fixtures for cleaning and reuse
Furniture for refurbishing and reuse
Crushed tiles for paving or landscape decoration
TYPICAL MATERIALS
GREEN BUILDING IN THE C&D WASTE SECTOR
CASE STUDY
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GREEN BUILDING IN THE C&D WASTE SECTOR
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STAGE 1: SOFT STRIP WASTE
This stage typically comprises approximately 4% of total waste that is produced
during the demolition stage of a demolitions Project and will disposed of at a
Licensed Municipal Landfill operation such as Strandfontein Coastal Park and/ or
Vissershok.
The following wastes are typically recovered in Stage 1:
Plastics
Boards
Timber
Caulking
DEMOLITIONS WASTE MANAGEMENT
GREEN BUILDING IN THE C&D WASTE SECTOR
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STAGE 2: HARD STRIP WASTE
This waste is typically valuable waste and is reused for second hand resale at
Second Hand Store or alternatively transported to 5th Avenue Recycling Area in
Parow, Cape Town.
The following wastes are typically recovered in Stage 2:
Window Frames
Metal piping and conduits
Doors
Electrical wiring and cables
Fluorescent light ballasts
Steel and metals
DEMOLITIONS WASTE MANAGEMENT
GREEN BUILDING IN THE C&D WASTE SECTOR
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STAGE 3 CRUSHING
All wastes in this stage can be crushed (such as concrete floors, ceilings and
walls) which are crushed to an aggregate of less than 25mm in diameter. This
aggregate is sold to Corobrick, which in turns produces bricks from this material.
The following wastes are typically recovered in Stage 3:
Walls
Ceiling panels
Concrete
DEMOLITIONS WASTE MANAGEMENT
GREEN BUILDING IN THE C&D WASTE SECTOR
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DEMOLITIONS WASTE MANAGEMENT
Stage: Stage Name: Waste type: Product/item: Origin of Disposal: Approximate
Percentage:
1 Soft Strip General/Inert Wastes
to Landfill
Plastic Landfill at Licensed
Municipal Landfill Site
e.g. Stradfontein and
Vissershok,
4%
Boards
Timber
Caulking
2 Hard Strip Reusable Wastes Window Frames Reuse for resale at
Second Hand Store or
5th Avenue, Parow
(Recycling Area)
96%
Piping
Doors
Wiring/Cables
Fluorescent Light
ballasts
Steel and Metals
3 Crushing Recyclable Wastes Floors Recycled by Processing
into Aggregate and
Sold to Brick
Manufacturers
Walls
Ceiling panels
Concrete
GREEN BUILDING IN THE C&D WASTE SECTOR
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Construction waste consists of unwanted material produced directly or
incidentally by the construction phase, this type of waste includes the following
waste products:
Hazardous Waste
Solid Waste
Liquid Waste
CONSTRUCTION WASTE MANAGEMENT
GREEN BUILDING IN THE C&D WASTE SECTOR
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CONSTRUCTION WASTE MANAGEMENT
Waste Type Waste type: Product/item: Origin of Disposal: Percentage:
Hazardous Waste Non-recyclable Cement Bags Landfill at Licensed Municipal
Landfill Vissershok, To be determined during
construction through the
monitoring programme.
Paint Containers
Cement
Caulking
Petrochemicals
Batteries
Asbestos
Waste Oils
Sulphur contained solvents
Organic Solvents
Organic Halogenated Solids
Tarry and Butiminous Waste
Brine
Flyash
Slag
Electronic waste
Metal Scrap
Health Care Waste
GREEN BUILDING IN THE C&D WASTE SECTOR
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CONSTRUCTION WASTE MANAGEMENT
Waste Type Waste type: Product/item: Origin of Disposal: Percentage:
Solid Waste Reusable and Recyclable Glass Recycling Centers To be determined during
construction through the
monitoring programme. Plastics
Metals and Steel
Tyres
Mineral Waste
Organic Waste
Wood
Bricks
Concrete
Boards
Tins
Paper
Liquid Waste Non-Recyclable Paint water Recycling Centers To be determined during
construction through the
monitoring programme. Non-organic waste water
Recyclable Sewage Water
Stormwater
Organic Water
GREEN BUILDING IN THE C&D WASTE SECTOR
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DEMOLITIONS WASTE RECOVERY OPTIONS
Waste Type: Reused: Recycled:
Hard Strip Waste Window Frames X
Piping X
Doors X
Wiring/Cables X
Fluorescent Light Ballasts X
Steel and Metals X
Crushing Floors X
Walls X
Ceiling Panels X
Concrete X
GREEN BUILDING IN THE C&D WASTE SECTOR
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CONSTRUCTION WASTE RECOVERY OPTIONS
Waste Type Reused Recycled Non-Recyclable
Hazardous Waste“x” indicates the possibilities
for the Contractor to deal with
the waste.
Cement Bags X
Paint Containers X
Cement X
Caulking X
Petrochemicals X
Batteries X
Asbestos X
Waste Oils X X
Sulphur contained
solvents
X
Organic Solvents X
Organic Halogenated
Solids
X
Tarry and Butiminous
Waste
X
Brine X
Fly ash X
Slag X
Electronic waste X
Metal Scrap X
Health Care Waste X
GREEN BUILDING IN THE C&D WASTE SECTOR
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CONSTRUCTION WASTE RECOVERY OPTIONS
Waste Type Reused Recycled Non-Recyclable
Solid Waste“x” indicates the possibilities
for the Contractor to deal
with the waste.
Glass X
Plastics X
Metals and Steel X
Tyres X
Mineral Waste X
Organic Waste X
Wood X
Bricks X
Concrete X
Boards X
Tins X
Paper X
Liquid Waste Paint water X
Non-organic waste water X
Sewage Water X
Stormwater X
Organic Water X
GREEN BUILDING IN THE C&D WASTE SECTOR
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DEMOLITIONS WASTE REUSE OPTIONS
Waste Type: Recycling/Re-Use Methodology:
Hard Strip Waste Window Frames Reuse for resale at Second Hand Store
or 5th Avenue, Parow (Recycling Area)Piping
Doors
Wiring/Cables
Fluorescent Light Ballasts
Steel and Metals
Floors Recycled by Processing into
Aggregate and Sold to Brick
ManufacturersCrushing Walls
Ceiling Panels
Concrete
GREEN BUILDING IN THE C&D WASTE SECTOR
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CONSTRUCTION WASTE REUSE OPTIONS
Waste Type Recycling/Re-Use Methodology:
Hazardous Waste Cement Bags Transported to the Landfill Site at
VisserhokPaint Containers
Cement
Caulking
Petrochemicals
Batteries
Asbestos
Waste Oils
Sulphur contained solvents
Organic Solvents
Organic Halogenated Solids
Tarry and Butiminous Waste
Brine
Flyash
Slag
Electronic waste
Metal Scrap
Health Care Waste
GREEN BUILDING IN THE C&D WASTE SECTOR
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CONSTRUCTION WASTE REUSE OPTIONS
Waste Type Recycling/Re-Use Methodology:
Solid Waste Glass Recycled offsite
Plastics Recycled offsite
Metals and Steel Reused and/or Recycled
Tyres Recycled offsite
Mineral Waste Recycled offsite
Organic Waste Recycled offsite
Wood Recycled offsite
Bricks Reused offsite
Concrete Reused offsite
Boards Reused offsite
Tins Recycled offsite
Paper Recycled offsite
Liquid Waste Paint water Transported to the Landfill Site at Visserhok
Non-organic waste water Transported to the Landfill Site at Visserhok
Sewage Water Recycled offsite
Stormwater Recycled offsite
Organic Water Recycled offsite
GREEN BUILDING IN THE C&D WASTE SECTOR
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CASE STUDY
GREEN BUILDING IN THE C&D WASTE SECTOR
BUILDING REUSE
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GREEN BUILDING IN THE C&D WASTE SECTOR
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Reuse of buildings and parts of buildings can significantly reduce the demand
for new construction materials and reduce the environmental impact from
development.
Points are awarded where a proportion of the total existing façade of the
building is reused (either by 60% OR 90%)
Points are also awarded where a proportion of the major structure, by gross
building volume is reused (either 30%, 60% or 90%).
This credit addresses the retaining of existing materials, not the final design,
and so it is irrelevant whether the retained materials are refurbished with
additional material.
The allocation of points for reuse of structure is based on gross building
volume and not material volume.
BUILDING REUSE
GREEN BUILDING IN THE C&D WASTE SECTOR
BUILDING WITH RECYCLED
MATERIALS
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GREEN BUILDING IN THE C&D WASTE SECTOR
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Incorporating recycled products into buildings help reduce reliance on virgin
materials, and creates a market for recycled materials.
Many products containing a recycled component requires significantly less
energy to manufacture, reducing the embodied energy of the product
Reusing products and materials is a definite approach towards ensuring that
the useful life of products is extended and diverted from landfill.
Points are awarded where the materials that are selected for base building
construction have a recycled content or are reused items for a percentage
of the total contract value (0.5% or 1.0%)
It excludes steel, timber, concrete mix components and masonry units
Only materials permanently installed on the project site are eligible.
Examples of reused materials include windows, cladding, flooring, doors,
sanitary and lighting fixtures/fittings.
Examples of recycled content include insulation, aluminum, glazing, gypsum,
flooring, carpets, facades and roofing materials.
MATERIALS
GREEN BUILDING IN THE C&D WASTE SECTOR
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Reinforced concrete can readily utilize both the post-consumer and post-
industrial waste, thus reducing waste, consumption of natural resources and
greenhouse gas emissions.
Replacing a portion of the Portland cement with industrial by-products
such as fly ash, blast furnace slag and silica fume reduces the mining of
natural resources and greenhouse gas emissions associated with cement
production while disposing of a waste material previously destined for landfill.
This credit encourages and recognizes the reduction of embodied energy and
resource depletion occurring through the use of concrete.
Points are awarded where the project has reduced the absolute quantity of
Portland cement by a minimum percentage, by substituting it with industrial
waste product(s) or oversized aggregates (30% or 40% reduction).
Additional points are awarded where 10% of the aggregate used for structural
purposes is either recycled or slag.
CONCRETE
GREEN BUILDING IN THE C&D WASTE SECTOR
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This credit encourages and recognizes the reduction in embodied energy and
resource depletion associated with reduced use of virgin steel.
Points are awarded depending on whether the building is predominantly
structural steel or predominantly reinforced concrete or structural masonry.
It rewards projects on the percentage (%) of average post-consumer
recycled content of the structural steel and whether the structural steel is
reused.
Steel applications for structure types include:
Predominantly structural steel building: hot rolled beams, columns,
angles, hollow sections, parallel flange channels, mullions, purlins, girts
and light steel framing systems
Predominantly reinforced concrete or structural masonry building:
reinforcing bar, reinforcing mesh and permanent steel formwork.
Major Steel applications in the building include:
Structural steel applications
Building envelope steel applications (wall cladding and profile roof
decking)
STEEL
GREEN BUILDING IN THE C&D WASTE SECTOR
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This credit encourages and recognizes the specification of reused timber
products or timber that has certified environmentally-responsible forest
management practices.
Expected timber uses within the credit include:
Structural timber including wall, floor and roof structure
External and internal cladding
Flooring/wall/ceiling finishes
Internal and external joinery including windows, doors and other
specialist uses of timber such as installed furnishings, joinery fixtures or
balustrades
Structural formwork
Points are awarded where a minimum percentage (%) of all timber and timber
composite products used in the building and construction works are compliant
with sourcing requirements (FSC certification scheme)
Compliant timber and timber composite products must be:
Reused timber
Post consumer recycled timber
Forest Stewardship Council (FSC) certified timber
TIMBER
GREEN BUILDING IN THE C&D WASTE SECTOR
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Through introducing higher levels of perforations into clay masonry units, the
mass of the units is reduced which has a direct impact on energy processes
of manufacturing.
Reducing the mass of a masonry unit also impacts on haulage, with lighter
loads and reduced transport.
Points are awarded where a minimum percentage (%) by area of masonry
units has used one of the following strategies (50% or 80% area)
For Clay bricks, perforated or reused masonry units are used
For Concrete bricks, perforated or recycled content masonry units are
used
For Concrete blocks, recycled content masonry units are used
Applicable masonry units include those for walling (structural and non-
structural) only
Demonstration of compliance is based on area (‘face’ or ‘elevation’ area)
MASONRY
GREEN BUILDING IN THE C&D WASTE SECTOR
DISCUSSION
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