Page 82 - GRIHA Manual Volume IV - Introduction to National Rating System
P. 82
Building planning and construction 73
# Avoiding designs that restrict the use of reclaimed and recycled materials
# Avoiding the specification and use of high embodied energy materials
# Avoiding sizing of members and components, which involve a lot of wastage from cuts
Waste generation quantum and options for reuse/recycling
Other options during the actual construction process include the following.
# Excavations produce topsoil, clay, sand, and gravel. This may be either reused as fillers at the
same site after completion of the excavation work or moved to another site. Stone is produced
during excavations or by demolition of old buildings.
# Concrete and masonry constitute more than 50% of waste generated by the construction
industry. Recycling this waste (by converting it to aggregate) offers the dual benefit of saving
landfill space and reducing the extraction of natural raw material for new construction activity.
# However, wood used in construction is often treated with chemicals to prevent termite infestation
and warrants special care during disposal.
# Bituminous material arises from road planning, water proofing compounds, breaking and
digging of roads for services and utilities.
# Other miscellaneous materials that are generated as waste include glass, plastic material, paper,
and so on.
Technology for producing recycled aggregate from concrete, bricks, and masonry is quite simple.
A mobile unit is best suited to process demolition waste of uniform quality. It can be procured at
low investment. It can be useful for low quantum of waste and can be moved to the demolition site
avoiding cost of waste transportation.
A fixed recycling plant requires higher volumes of demolition waste to justify high investment
in complex screening and separation systems, which are necessary to process mixed demolition
waste. It has to be located in a place, where large volume of waste is available and the market for
recycled product is close. Unless the market for recycled aggregate is developed, economic viability
of such a unit would be questionable.
While ordering materials following should be considered
1. Purchasing materials that have recycled content
2. Order paints with low odour and VOC emissions
3. Ask suppliers to minimize packaging
4. Order in standard sizes to minimize on-site cutting and waste
While taking delivery of materials following should be kept in mind
1. Have appropriate storage areas ready, which should be covered to protect against rain ingress
and ideally have a hard standing surface
2. Know whether special handling is required
3. Appoint a person to be in charge of and manage stores
4. Schedule deliveries
5. Audit all deliveries to make sure that all materials have been delivered
6. Reject deliveries if incomplete or damaged
While storing materials following should be remembered
1. Provide adequate storage that is weather proof and secure
# Avoiding designs that restrict the use of reclaimed and recycled materials
# Avoiding the specification and use of high embodied energy materials
# Avoiding sizing of members and components, which involve a lot of wastage from cuts
Waste generation quantum and options for reuse/recycling
Other options during the actual construction process include the following.
# Excavations produce topsoil, clay, sand, and gravel. This may be either reused as fillers at the
same site after completion of the excavation work or moved to another site. Stone is produced
during excavations or by demolition of old buildings.
# Concrete and masonry constitute more than 50% of waste generated by the construction
industry. Recycling this waste (by converting it to aggregate) offers the dual benefit of saving
landfill space and reducing the extraction of natural raw material for new construction activity.
# However, wood used in construction is often treated with chemicals to prevent termite infestation
and warrants special care during disposal.
# Bituminous material arises from road planning, water proofing compounds, breaking and
digging of roads for services and utilities.
# Other miscellaneous materials that are generated as waste include glass, plastic material, paper,
and so on.
Technology for producing recycled aggregate from concrete, bricks, and masonry is quite simple.
A mobile unit is best suited to process demolition waste of uniform quality. It can be procured at
low investment. It can be useful for low quantum of waste and can be moved to the demolition site
avoiding cost of waste transportation.
A fixed recycling plant requires higher volumes of demolition waste to justify high investment
in complex screening and separation systems, which are necessary to process mixed demolition
waste. It has to be located in a place, where large volume of waste is available and the market for
recycled product is close. Unless the market for recycled aggregate is developed, economic viability
of such a unit would be questionable.
While ordering materials following should be considered
1. Purchasing materials that have recycled content
2. Order paints with low odour and VOC emissions
3. Ask suppliers to minimize packaging
4. Order in standard sizes to minimize on-site cutting and waste
While taking delivery of materials following should be kept in mind
1. Have appropriate storage areas ready, which should be covered to protect against rain ingress
and ideally have a hard standing surface
2. Know whether special handling is required
3. Appoint a person to be in charge of and manage stores
4. Schedule deliveries
5. Audit all deliveries to make sure that all materials have been delivered
6. Reject deliveries if incomplete or damaged
While storing materials following should be remembered
1. Provide adequate storage that is weather proof and secure
