building and construction materials for sustainable development
TRANSCRIPT
BUILDING AND CONSTRUCTION MATERIALS FOR SUSTAINABLE
DEVELOPMENT
Dr K M Soni, Chief Engineer, CPWD, Mumbai
IBC Seminar at Chnadigarh: Dr K M Soni, Chief Engineer, CPWD, Mumbai
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Sustainable Materials• Sustainable materials are
those materials that provide environmental, social and economic benefits while protecting public health and environment over their whole life cycle, from the extraction of raw materials until the final disposal.
www.sustainablematerials.org.uk
7 April 2017
IBC Seminar at Chnadigarh: Dr K M Soni, Chief Engineer, CPWD, Mumbai
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Green Material• “A green material is one that
simultaneously does the most with the least, fits most harmoniously within ecosystem processes, helps eliminate the use of other materials and energy, and contributes to the attainment of a service-based economy.”
• Based on environmental concerns
7 April 2017
IBC Seminar at Chnadigarh: Dr K M Soni, Chief Engineer, CPWD, Mumbai
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Environmental Concerns through regulations
• Rivers, Water Bodies and Sea - water• Ground surface - earth• Air • Inter-relation• Eco-system
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IBC Seminar at Chnadigarh: Dr K M Soni, Chief Engineer, CPWD, Mumbai
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Environmental Concerns in construction
• Civil construction activities i.e. Buildings and other engineering structures
• Natural resources/materials• Water (pollution)• Air (dust)• Noise• Construction activities affects eco-system
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IBC Seminar at Chnadigarh: Dr K M Soni, Chief Engineer, CPWD, Mumbai
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How to make balance between development and eco-system ?
Better we learn early as not only public but courts/tribunals are going to ask us this vital question.
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IBC Seminar at Chnadigarh: Dr K M Soni, Chief Engineer, CPWD, Mumbai
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The Aarey Milk Colony is situated in Goregaon East, Mumbai, established in 1949 and officially inaugurated by the then PM in 1951, having gardens, a nursery, lakes, an observation pavilion, picnic facilities, and milk plants, cattle farms and poultry farm.
7 April 2017
IBC Seminar at Chnadigarh: Dr K M Soni, Chief Engineer, CPWD, Mumbai
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Aarey colony, MumbaiEco-sensitive zone
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IBC Seminar at Chnadigarh: Dr K M Soni, Chief Engineer, CPWD, Mumbai
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Green tribunal temporarily halts all construction work at Aarey colony in Mumbai
HT, Dec 20, 2016
7 April 2017
IBC Seminar at Chnadigarh: Dr K M Soni, Chief Engineer, CPWD, Mumbai
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Central Poultry Development Organisation
Existing Poultry Sheds
Existing Godowns
Approach Road
Existing Office and Hatchery
Existing Lab
Scattered Residential Units
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IBC Seminar at Chnadigarh: Dr K M Soni, Chief Engineer, CPWD, Mumbai
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All India Institute of Physical Medicine and Rehabilitation
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IBC Seminar at Chnadigarh: Dr K M Soni, Chief Engineer, CPWD, Mumbai
127 April 2017
IBC Seminar at Chnadigarh: Dr K M Soni, Chief Engineer, CPWD, Mumbai
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Ban constructions within 300m of Upper Lake, Bhopal: NGT3.07.2014 (ToI)
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IBC Seminar at Chnadigarh: Dr K M Soni, Chief Engineer, CPWD, Mumbai
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HC bans construction on Chitlapakkam Lake, Chennai and on the bund abutting it, Hindu, 08 Feb 2017
7 April 2017
IBC Seminar at Chnadigarh: Dr K M Soni, Chief Engineer, CPWD, Mumbai
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The Uttarakhand HC imposed a blanket ban on any
construction within a radius of 2 km from major lakes in
Nainital. The HC also ordered a ban on cutting of trees within a five km radius of the lake
ToI, Nov 8, 2016
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IBC Seminar at Chnadigarh: Dr K M Soni, Chief Engineer, CPWD, Mumbai
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BUILDING MATERIALS AND ENVIRONMENTAL REGULATIONS• As per “The Environment (Protection) Act,
1986”, environment includes water, air and land and the inter-relationship which exists among and between water, air and land, and human beings, other living creatures, plants, micro organism and property.
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IBC Seminar at Chnadigarh: Dr K M Soni, Chief Engineer, CPWD, Mumbai
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other living creatures, plants, micro organism; part of eco-system
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IBC Seminar at Chnadigarh: Dr K M Soni, Chief Engineer, CPWD, Mumbai
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Any filling disturbs living creatures, plants and micro-organism on ground
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IBC Seminar at Chnadigarh: Dr K M Soni, Chief Engineer, CPWD, Mumbai
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Such activities also disturbs living creatures, and micro-organism in water
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IBC Seminar at Chnadigarh: Dr K M Soni, Chief Engineer, CPWD, Mumbai
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And even ...............
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IBC Seminar at Chnadigarh: Dr K M Soni, Chief Engineer, CPWD, Mumbai
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Smog/air pollution disturbs living creatures, plants and micro-organism
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IBC Seminar at Chnadigarh: Dr K M Soni, Chief Engineer, CPWD, Mumbai
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So, please remember, these all activities are going to affect construction activities due to environmental concerns
so sustainable development is only the answerwhich is to be properly defined before the courts considering engineering
concerns
7 April 2017
IBC Seminar at Chnadigarh: Dr K M Soni, Chief Engineer, CPWD, Mumbai
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Sustainable Building/construction Materials are part of sustainable development
7 April 2017
IBC Seminar at Chnadigarh: Dr K M Soni, Chief Engineer, CPWD, Mumbai
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Green tribunal halts sand mining in coastal Maharashtra | Saturday 08 February 2014
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IBC Seminar at Chnadigarh: Dr K M Soni, Chief Engineer, CPWD, Mumbai
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Environmental concern
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IBC Seminar at Chnadigarh: Dr K M Soni, Chief Engineer, CPWD, Mumbai
267 April 2017
IBC Seminar at Chnadigarh: Dr K M Soni, Chief Engineer, CPWD, Mumbai
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Construction concerns ?
Environmental concern
7 April 2017
IBC Seminar at Chnadigarh: Dr K M Soni, Chief Engineer, CPWD, Mumbai
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So, what can engineers do?
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IBC Seminar at Chnadigarh: Dr K M Soni, Chief Engineer, CPWD, Mumbai
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Alternative of natural sandManufactured sand
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IBC Seminar at Chnadigarh: Dr K M Soni, Chief Engineer, CPWD, Mumbai
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Recycled sand7 April 2017
IBC Seminar at Chnadigarh: Dr K M Soni, Chief Engineer, CPWD, Mumbai
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Environmental concern on stone quarrying/aggregate
7 April 2017
IBC Seminar at Chnadigarh: Dr K M Soni, Chief Engineer, CPWD, Mumbai
327 April 2017
IBC Seminar at Chnadigarh: Dr K M Soni, Chief Engineer, CPWD, Mumbai
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Environmental concern for air pollution too
7 April 2017
IBC Seminar at Chnadigarh: Dr K M Soni, Chief Engineer, CPWD, Mumbai
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Recycled aggregate
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IBC Seminar at Chnadigarh: Dr K M Soni, Chief Engineer, CPWD, Mumbai
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Red mud
Slag
Flyash
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IBC Seminar at Chnadigarh: Dr K M Soni, Chief Engineer, CPWD, Mumbai
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Sustainable Materials
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IBC Seminar at Chnadigarh: Dr K M Soni, Chief Engineer, CPWD, Mumbai
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From waste plastic mining, coal and steel industries
Brick/blocks from recycled plastic, waste from industries, ceramic hardware and paper
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IBC Seminar at Chnadigarh: Dr K M Soni, Chief Engineer, CPWD, Mumbai
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WasteBasedBricks, produced by a startup called StoneCycling, creates the bricks by mixing waste from nearby glass, ceramics, and insulation factories, and sometimes rejected clay from traditional brick factories and demolition waste,
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IBC Seminar at Chnadigarh: Dr K M Soni, Chief Engineer, CPWD, Mumbai
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Glass
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IBC Seminar at Chnadigarh: Dr K M Soni, Chief Engineer, CPWD, Mumbai
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Green Building Concept• “Green building
concept is based on relative term and green is entirely considered on relative basis”.
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IBC Seminar at Chnadigarh: Dr K M Soni, Chief Engineer, CPWD, Mumbai
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Green buildings
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IBC Seminar at Chnadigarh: Dr K M Soni, Chief Engineer, CPWD, Mumbai
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Green Products
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IBC Seminar at Chnadigarh: Dr K M Soni, Chief Engineer, CPWD, Mumbai
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Therefore, a selection criterion is required to assess green material
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IBC Seminar at Chnadigarh: Dr K M Soni, Chief Engineer, CPWD, Mumbai
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Selection criteria for assessment of green materials (Brian Milani,
2001)• Resource efficiency• Indoor air quality• Energy efficiency• Water conservation and • Affordability
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IBC Seminar at Chnadigarh: Dr K M Soni, Chief Engineer, CPWD, Mumbai
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Sl. No. Parameter Weightage
1 Embodied energy 202 Waste content 103 Life cycle/durability 154 Maintainability 55 Toxicity including during fire 106 Safety during installation/use, fire,
earthquake etc.10
7 Local Availability 58 Recyclability 59 Energy requirement during its use 20
Parameters for classification a green material
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IBC Seminar at Chnadigarh: Dr K M Soni, Chief Engineer, CPWD, Mumbai
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Waste materials to be used as resource materials
• Fly ash• Red mud• Slag• Unfired clay bricks• Manufactured sand• Glass • C & D Waste• And so on…..7 April 2017
IBC Seminar at Chnadigarh: Dr K M Soni, Chief Engineer, CPWD, Mumbai
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And look for alternatives to natural materials
• Paper• Artificial stones• Carbon fibres• Translucent concrete• Rubber modified asphalt• Plastic • Recycled bitumen• Silica fumes• Bagasse• Rice husk ash• Wood • Water • clothes• Special concrete7 April 2017
IBC Seminar at Chnadigarh: Dr K M Soni, Chief Engineer, CPWD, Mumbai
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Paper waste for construction Material
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IBC Seminar at Chnadigarh: Dr K M Soni, Chief Engineer, CPWD, Mumbai
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Artificial Stone
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IBC Seminar at Chnadigarh: Dr K M Soni, Chief Engineer, CPWD, Mumbai
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Rubber modified asphalt
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IBC Seminar at Chnadigarh: Dr K M Soni, Chief Engineer, CPWD, Mumbai
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Plastic
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IBC Seminar at Chnadigarh: Dr K M Soni, Chief Engineer, CPWD, Mumbai
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Recycled bitumen
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IBC Seminar at Chnadigarh: Dr K M Soni, Chief Engineer, CPWD, Mumbai
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Silica fumes
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IBC Seminar at Chnadigarh: Dr K M Soni, Chief Engineer, CPWD, Mumbai
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Bagasse
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IBC Seminar at Chnadigarh: Dr K M Soni, Chief Engineer, CPWD, Mumbai
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Manufactured wood board
Engineered wood, or composite wood, or manufactured board, includes a range of derivative wood products manufactured by binding or fixing the strands, particles, fibres, or veneers or boards of wood, together with adhesives, or other methods of fixation to form composite materials.
7 April 2017
IBC Seminar at Chnadigarh: Dr K M Soni, Chief Engineer, CPWD, Mumbai
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Rice husk ash
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IBC Seminar at Chnadigarh: Dr K M Soni, Chief Engineer, CPWD, Mumbai
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Recycled water
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IBC Seminar at Chnadigarh: Dr K M Soni, Chief Engineer, CPWD, Mumbai
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Recycled jeans
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IBC Seminar at Chnadigarh: Dr K M Soni, Chief Engineer, CPWD, Mumbai
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Green technologies
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IBC Seminar at Chnadigarh: Dr K M Soni, Chief Engineer, CPWD, Mumbai
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Smart Buildings, Roads, Energy, Materials and Services
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IBC Seminar at Chnadigarh: Dr K M Soni, Chief Engineer, CPWD, Mumbai
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Translucent concrete(achieved by replacing aggregates with transparent alternate materials like optical
fibres/clear resins the concrete mix. Translucent concrete is a concrete based building material with light-transmissive properties due to embedded light optical elements — usually optic fibres.
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IBC Seminar at Chnadigarh: Dr K M Soni, Chief Engineer, CPWD, Mumbai
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Carbon fibres
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IBC Seminar at Chnadigarh: Dr K M Soni, Chief Engineer, CPWD, Mumbai
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Insulated concrete panels
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IBC Seminar at Chnadigarh: Dr K M Soni, Chief Engineer, CPWD, Mumbai
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Aerogel insulationAerogels are solids with high porosity formed by removing the liquid from a gel under special drying conditions, bypassing the shrinkage and cracking experienced during ambient evaporation. This creates a solid three-dimensional nanoporous structure containing 80-99% air. Due to their high porosity, they exhibit the lowest thermal conductivity, whilst being transparent to light and solar radiation.
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IBC Seminar at Chnadigarh: Dr K M Soni, Chief Engineer, CPWD, Mumbai
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Sweating rooftopFor the roofing material, the researchers used a special water-permeable membrane that fills with water when it rains. If the material becomes warmer than about 90 degrees Fahrenheit in direct sunlight, it begins to “sweat,” releasing water at the surface, where it evaporates and helps to cool the building.
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IBC Seminar at Chnadigarh: Dr K M Soni, Chief Engineer, CPWD, Mumbai
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Self healing concrete
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IBC Seminar at Chnadigarh: Dr K M Soni, Chief Engineer, CPWD, Mumbai
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Insulated concrete panels/forms
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IBC Seminar at Chnadigarh: Dr K M Soni, Chief Engineer, CPWD, Mumbai
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Light weight geofoam blocks
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IBC Seminar at Chnadigarh: Dr K M Soni, Chief Engineer, CPWD, Mumbai
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Pervious concrete
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IBC Seminar at Chnadigarh: Dr K M Soni, Chief Engineer, CPWD, Mumbai
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Heat sensitive tiles
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IBC Seminar at Chnadigarh: Dr K M Soni, Chief Engineer, CPWD, Mumbai
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Robotics in construction & maintenance
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IBC Seminar at Chnadigarh: Dr K M Soni, Chief Engineer, CPWD, Mumbai
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Smart & Green buildings
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IBC Seminar at Chnadigarh: Dr K M Soni, Chief Engineer, CPWD, Mumbai
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Conclusions • Need to adopt smart and sustainable materials and
technologies based on environmental laws• Define sustainable materials based on local
requirements• Adopt new materials and technologies using
minimum or no natural materials• Research in the country for construction materials
and technologies based on country’s requirements and knowledge updation by engineers
• Avoid wastage and adopt quality in construction• Future is for smart and green buildings/structures7 April 2017
IBC Seminar at Chnadigarh: Dr K M Soni, Chief Engineer, CPWD, Mumbai
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(The contribution of photographs and material wherever taken from the internetfrom various sites and presented here is gratefully acknowledged)
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IBC Seminar at Chnadigarh: Dr K M Soni, Chief Engineer, CPWD, Mumbai
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And then• “Quality” in works (construction and
maintenance) for durability is to be adopted• Wastage is to be adopted in all spheres of life• Knowledge needs to be updated upto field
levels• Research suiting to local requirements
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