GREEN BUILDING for

SUSTAINABLE DEVELOPMENT

Dr. Jati Utomo Dwi Hatmoko, MSc

Disampaikan dalam Seminar Nasional “Teknologi Terintegrasi dalam Rangka Mewujudkan Konstruksi Beton Ramah Lingkungan”

Jurusan Teknik Sipil Fakultas Teknik Universitas Diponegoro,

27 November 2010,

Paradigm Shift in Construction Project’s Success Parameters

(Huovila and Koskela, 1998)

"...Cost is King, Carbon is Queen...“

Paul Morrell,

UK Government Chief Construction Advisor

Source: www.ncdc.noaa.gov Source: www. cdiac.ornl.gov

Buildings and The Environment

60%

40%

world wide materials

others buildings material

55%

45%

Greenhouse gas & acidification sources

food and others buildings

Source, California Integrated Waste Management Board, 2000

Activities in project life cycle

Source: www.nscc.org.uk

Source : www.carbontrust.co.uk

Energy Consumption & Emissions from Buildings Source: techno konstruksi, Oct 2010

• Buildings contribute >30% of CO2 (green house effect)

• CO2 emission reduction to tackle global warming

• Target CO2 emission reduction of RI 26% in 2020 (Copenhagen Summit, Denmark, 2009)

– Buildings can contribute 4 out of 26% (GBCI)

Green Building (sustainable building)

Definition : • is the practice of creating structures and using processes that are

environmentally responsible and resource-efficient throughout a building's life-cycle:

– from design, construction, operation, maintenance, renovation, and demolition.

• This practice expands and complements the classical building design concerns of : economy, utility, durability, and comfort.

Green Building

Objectives : • to reduce the overall impact of the built environment on human health

and the natural environment, by:

– Efficiently using energy, water, and other resources

– Protecting occupant health and improving employee productivity

– Reducing waste, pollution and environmental degradation

Principles

Resources

Phase

Reduce

Reuse

Recycle

Protect Nature

Eliminate Toxics

Life-Cycle

Costing

Quality

Land Materials Water Energy Ecosystems

Planning

Development

Design

Construction

Use & Operation

Maintenance

Modification

Deconstruction

Framework for Sustainable Construction developed by CIB (Kibert, 2008).

Examples of Green Buildings

Examples of Green Buildings

Nanyang Technological University, Singapore

Examples of Green Building

California Academy of Science

• Green roof natural heating & cooling system used jean fabric absorb 90 – 98% rain natural ventilation

• Waste water reduction up to 50% • Glass walls provide natural light for 90% rooms • 60.000 photovoltaic cells panels for 10% of electricity

need

California Academy of Science

California Academy of Science

Benefits of Green Building

• Low building operational costs

– lower utility bills (a lifetime cost saving)

• Improved indoor air quality

• Health improvement of building occupants

– Lower Sick building syndrome (SBS)

– Increase productivity, lower absenteeism

Benefits of Green Building

• Green job / business creation

– Recycling business, eco-training, etc

• Minimized strain on local infrastructure

• Conservation of resources

• Waste reduction

Green buildings typically 2% more expensive than conventional building, but ….

In the whole life of the building, the total benefits > the costs

3% additional cost in design phase can reduce construction costs by 10%

Demand for Green Building

Source: www.imrebuildiq.com

Ref: Du Plessis (2002)

Challenges of Green Construction & Sustainable Development

Green Building Certifications

Tools and rating systems have been created in order to assess and compare the environmental performance of buildings

• LEED (Leadership in Energy and Environmental Design) in the USA

• BREEAM (Building Research Establishment - Environmental Assessment Method in the UK)

• HQE (High Quality Environmental standard) in France.

• Green Star in Australia

• GREENSHIP in Indonesia (GBC - Green Building Council of Indonesia)

Other Countries

Parameters of Indonesian green building (Green Building Council of Indonesia)

• Appropriate site development

• Energy efficiency & refrigerant

• Water conservation

• Indoor air health & comfort

• Building & environment management

• Material resources & cycle

– Local materials from local suppliers

Reducing the environmental impact of concrete

• Making more durable concrete with longer lifetime. – Most buildings are designed to have a lifetime of 50 years, but are

starting to deteriorate at age 20.

– Making more durable buildings with a lifetime of 500 years will reduce the waste significantly.

• Cement Conservation. - Cement production contributes to 7% of all CO2 into the atmosphere. - Reducing cement amounts in concrete will contribute significantly to the environment, e.g. using fly ash, silica fume.

Reducing the environmental impact of concrete

• Water Conservation. – Production of concrete uses tons of water everyday, for washing the

mixer and for concrete mixing.

– Theoretically, the hydration process of cement only requires about 30% of the cement mass

• majority of water is needed for increasing the workability.

– use recycled water and water-reducing admixture

• Aggregate Conservation. – using aggregates from recycled concrete aggregate (RCA)

Contoh Aplikasi

Green Construction Di Indonesia

merupakan impelementasi beton

ramah lingkungan adalah beton yang

dapat mengalir sendiri tanpa harus

dipadatkan, dapat melewati ruang –

ruang yang sempit dan tanpa

segresi. SCC diperoleh dengan

menambahkan material pengisi (filler)

seperti blast furnace slag, fly ash,

silica fume, super plasticizer, dan

viscosity modifiers admixtures.

Self Compacted Concrete

(SCC)

(Sumber : Gambiro dan Sunarso Mukhlis, 2010)

PENGAPLIKASIAN GREEN CONSTRUCTION PADA PROYEK BPK

PENGAPLIKASIAN GREEN CONSTRUCTION PADA PROYEK BPK

FASILITAS TEMPAT UNTUK MEROKOK

DIREKSI KEET MENGGUNAKAN KONTAINER

DATA UMUM PROYEK

Nama Proyek : Gedung BPK - RI Perwakilan Jawa Tengah

Pemilik Proyek : Badan Pemeriksa Keuangan (BPK) Republik Indonesia.

Kontraktor Pelaksana : PT. Pembangunan Perumahan Persero.

Konsultan Perencana : PT. Pandu Persada

Nilai Kontrak : Rp. 67.000.000.000,-

Schedule Proyek : 26 Oktober 2010 – 29 Desember 2011

DATA ALAT BERAT YANG DIGUNAKAN PADA PROYEK BPK

MAPPING AKTIFITAS KONSTRUKSI YANG BERPOTENSI MENGHASILKAN CARBON FOOTPRINT PADA PROYEK BPK

Mapping Carbon Footprint

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Mapping Carbon Footprint

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Faktor-Faktor Yang Mempengaruhi Besarnya Emisi Karbon Pada Suatu Proyek Konstruksi

• Jenis dan skala proyek

• Volume pekerjaan

• Lokasi dan kondisi geografis proyek

• Jumlah alat berat yang digunakan

• Sistem pengawasan

• Pengalaman kerja (jam terbang)

• Perilaku operator

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Cara – Cara Mengurangi Emisi Karbon Di Dalam Proyek Konstruksi

• Efisiensi Energi Pada Akomodasi Site Konstruksi

• Efisiensi Penggunaan Peralatan dan Energi Dalam Pekerjaan Konstruksi

• Koneksi Pada Jaringan Listrik Yang Lebih Awal

• Pengukuran, Pengawasan Dan Penargetan Pada Setiap Kegiatan Proyek

• Efisiensi Bahan Bakar Pada Distribusi Material Dan Menggunakan Alternatif Bahan Bakar Yang Dapat Diperbaharui

• Penggunaan Pusat Penyimpanan Material Yang Dekat Dengan Lokasi Proyek Sebagai Tempat Penyimpanan Material Proyek

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We do not inherit the Earth from our Ancestors, we just borrow it from our Children.