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

© Terramanzi Group (Pty) Ltd

PRESENTATION OUTLINE

GREEN BUILDING

© Terramanzi Environmental Consulting

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


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



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



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



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



C&D WASTE MANAGEMENT




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



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


CASE STUDY




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



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.


Window Frames

Metal piping and conduits

Doors

Electrical wiring and cables

Fluorescent light ballasts

Steel and metals




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.


Walls

Ceiling panels

Concrete





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



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





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




Waste Type Waste type: Product/item: Origin of Disposal: Percentage:

Solid Waste Reusable and Recyclable Glass Recycling Centers To be determined during


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


monitoring programme. Non-organic waste water

Recyclable Sewage Water

Stormwater

Organic Water



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



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



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



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



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



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



CASE STUDY


BUILDING REUSE




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


BUILDING WITH RECYCLED

MATERIALS




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



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



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



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



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


DISCUSSION

Thank you for your time today

Tel: 021 701 5228Mobile: 082 575 3800

Email: [email protected]: www.terramanzi.co.za

Skype: terramanziTwitter: @terramanzi


mailto:[email protected]

http://www.terramanzi.co.za/

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