Presentation on Techno Economic and Construction Advantages Of
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Transcript of Presentation on Techno Economic and Construction Advantages Of
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Presentation on Techno Economic and Construction Advantages of
Rapid wall Technology
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Rapid Wall Technology
• Introduction
• Properties of rapid wall panels
• Advantages of Rapid wall panels
• Energy, Environment and Economic values of Rapid wall panels
• Case- Use of Rapid wall panels in India
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Alternative Building Material
RAPID WALL ....is an alternative building material to replace bricks / concrete blocks which will also save river sand, water etc and protect the environment
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Panel is reinforced by micro-strand glass rovings (13 microns) by both ways on all four sides - both flanges and webs.
This glass roving itself is a hi-tech product manufactured in India. Reinforcement is provided during the automated hi-tech production process itself.
This reinforcement provide load bearing capability & "confinement property" when cavities filled up with concrete.
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Rapid wall Panel is manufactured in 12 m x 3 m with 120 mm thickness with modular cavities.
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Cutting of panel to required sizes using automised cutting saw in factory
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After cutting Rapid wall is loaded onto collapsible frames, ready for transport.
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Properties of Rapid wall panels
• Compressive strength
a) Empty panel- 73.10 Kg/cm2
b) Concrete infill panel- 180.70 Kg/cm2
• Flexural Strength
a) Empty panel- 21.25 Kg/cm2
b) Concrete infill panel- 20.80 Kg/cm2
• Water absorption- < 2 % (24 hrs)
• Ductility – 4.11
• Fire resistance- 4 hrs rating 7000c to 10000c
• Free from corrosion• Density – 1140 Kg/m3
• Light weight –a) Without concrete infill - 40
Kg/m2
b) With concrete infill- 250 Kg/m2
• Earthquake resistance- Panel withstood earthquakes up to 8 Richter scale
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Advantages of Rapid wall panels
• Light weight panels• Economical• Load bearing• High quality finish• Earthquake resistance• Water resistance• Termite resistance
• Fire resistance• Speedy installations• Environmental
positive• Good noise resistance• Accommodates
building services
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Why it is necessary?
Housing is one of the basic human needs along with food, clothing and education.
According to UN estimate, over 33% of the population in developing countries are homeless.
Like other developing country, India too is presently passing through a phase of acute housing shortage.
Urban housing in India present large scale big building but on other hand it also have slums.
Problem of housing
Exponential population
growth
Fast rate of urbanization
Inadequate addition to the
existing housing stock
Large scale migration of the
poor from the villages and
small towns
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Population:
Greater Mumbai Population : 11.97 million (2001 census)
Present population : 18.0 million
Slum Population in Mumbai :6.62 million (2001 census)
Housing scenario:India's demand for housing As per Planning Commission at Present
by 2015: 80 million Housing demand by Higher income group- 18
%
by 2020 : 90 million Housing demand by middle income group- 36 %
Housing demand by lower income group- 46 %
Estimate on housing shortage by GovtUrban housing shortage (2007): 24.71 million (NBO) Rural housing shortage (2007) : 31.1 million (NHB) Total housing shortage (2007) : 55.81 million
Housing shortage in Maharashtra : 3.2 million(NBO)
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Maharashtra Govt Housing Policy(draft Nov 2006)
Urban Housing const, for low income: 5 lakh units in 3 yrs
Rural Housing construction : 2 lakh units in 3 yrs
Rehabilitation of eligible slum dwellers : 25% in 3 yrs
Renovation of old building: 25% in 3 yrs
Size of free dwelling units under various schemes : 225 sft
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Maharashtra Govt Housing Policy
Clause 10 of housing policy on housing technology:
• Technology development to reduce cost of housing & promote durable housing
• To promote eco-housing, low energy consuming construction techniques & building materials
• Encourage the use of pre-cast & pre-fabricated building materials for speedy & cost effective construction of mass housing
• Enforcement of National Building Code & Earthquake resistant construction guidelines
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Building Construction
L and and E ng inee rin P lan F inance B u ild ing m a te ra ils C ons truc tionL abou rs , W orke rs , E qu ipm en ts
B u ild ing
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Cement Production in India in Million Tonnes
145160
176194
? ?0
50
100
150
200
250
2005 2006 2007 2008 2009 2010
Year
To
nn
es
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Steel production in India in Million Tonnes
2535
45
110
? ?0
20
40
60
80
100
120
2005 2006 2007 2008 2009 2010
Year
Tonn
es
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Brick production in India in Billion
140160
200
? ? ?0
50
100
150
200
250
2005 2006 2007 2008 2009 2010
Year
Bil
lio
n
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River sand use in India in Million cum
303334
368404
? ?0
50100150200250300350400450
2005 2006 2007 2008 2009 2010
Year
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Cost of production of brick wall Rs. per sqm including both sides plastering
500 560680
768900
1140
0
200
400600
800
1000
1200
2003 2004 2005 2006(Mar)
2006(Nov)
2007 2008
Year
Rs
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Saving by One panel• 10000 Lit of water
• 2.43 m3/ 86 cft of river sand
• 8 m3 of soil
• 0.80 tons of cement
• Emission of 0.696 tons of CO2
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Environment friendly
Building material
No Emission
of CO2
Can be re used
Recycled Industrial
waste
Avoid Pollution
Low energy based
production process
Save river sand, soil, and water
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Construction of First Rapid wallBuilding in India
in Mumbai in 32 days by RCF
(structural design by IIT Madras & constructed as per Rapid wall construction
manual)
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RW panel taken out from container brought from Australia for construction of demonstration building
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Conventional Building foundation with RCC plinth beams provided with MS rods as start up rods for erection of panels as superstructure of building
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Panels cut into various sizes as per building plan are brought to construction sites by truck or lorry.
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Panel with opening for two windows is being placed over RCC plinth beam
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While panel is placed over plinth beam, start up rod will go into cavities, including corner joints. Cavities up to required height will be in-filled with concrete
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Panel being placed / seated on RCC plinth beam over a thin layer of cement mortar slurry.
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2 panels erected as corner walls. Angles are provided from two sides using nuts& bolts. After setting of concrete in-filled, these angles are removed.
For supporting panel in position, adjustable slanting prop is provided
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First pouring of concrete into wall corner joint.
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Cutting the panel for required opening to provide RCC lintel cum sunshade
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MS Rods for RCC lintel cum sunshade as per structural design provided.
With ply wood / MS sheet as shutter, RCC sunshade can be cast over the window
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For roof/floor, panel to be lifted horizontally / flat as seen in picture.
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Floor / roof panel provided with embedded RCC micro beams. For this, top flange of respective cavities are cut. For concealed electrical wiring, cables, PVC pipes, fan hooks etc are to be laid.
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Before cutting top flange, bottom support with ply wood / strong MS sheet with propwherever required are to be provided
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100 mm x 100 mm, 10 gauge weld mesh provided for 50 mm thick RCC screed. Embedded RCC micro-beams act as micro "T" beams
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Side shuttering provided for concreting of RCC horizontal tie beams and screed floor concrete
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Simultaneous concreting of RCC horizontal tie beams, micro-beams and screed concrete
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Concreted floor / roof. Start up MS rods (40 cm high) for erection of upper floor wall panel by repeat process. Walls on 3 sides of staircase and staircase landing to be done.
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Windowframewith
shutterin
position
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RCC lintel cum sunshade, architectural band, parapet wall work completed
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Wall corners, ceiling corners are given fine finish using special gypsum plaster product
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Staircase, handrail, marble slab for staircase steps, finishing coat of painting
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Interiorfinish,skirting,ceramicfloor tiles,furnishing,curtainrods, fan,lightfittings etcin position
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Rear view of two storey 1220 sqft RW building in 32 days. MS iron ladder to rooftop
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Front view of completed building. Front compound wall using RW panel
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On completion of structure of the building including parapet wall in 12 days, the finishing work carried out in 20 days• Architectural band all around• RCC sunshade• Weathering course• Drainage pipeline work• Ceramic tile laying• Marble slab for staircase• Glazed tiles for bathrooms• Finishing work of ceiling and wall corners• Electrical• Sanitary• Water supply• Painting
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A view of Rapid wall buildings in Australia and China
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Sydney Park housing complex with 922 apartments. This eight storey building is without RCC columns and beams. The entire structure is built on Gypcrete® /Rapid wall panel. The first phase with 370 apartments was built in 1990. This complex is close to World renowned Sydney Opera House.
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Multistoried construction
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Six storeyed Guest House building in an industrial park in Jinan city, Shandong Province, China.
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Seven storey (six storey + pent house) Apartment Gypcrete building in Tianjin, 150 km from Beijing city.
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Gypsum based wall plaster
• Gypsum based wall plaster can revolutionize the plastering of internal walls and ceilings.
• It is basically used as substitute for cement plaster.
• Savings- Cement, sand, water• Superior finish, Easy mixing and
application, Cool feeling
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Taking out wall plaster formixing in water to make paste
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Marking the levels with broken floor tile piece
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POP paste is applied to mark vertical levelling marks, which are provided at 3-4 feet intervals
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Contacts
Name Designation Telephone email
Marketing
Shri J. Kohareswaran Dir (Mktg) 24045455 [email protected]
Shri Bhunesh Mathur G.M. (Mktg) 24045031 [email protected]
Shri M.M. Patil D.G.M. (Mktg) 24045125 [email protected]
Technical Support
Shri Dilip Deshmukh Advisor (Projects) 24045173 [email protected]
Shri P.M.C. Nair G.M. (Corporate) 24045068 [email protected]
Shri P.G. Deshpande D.G.M. (Corp) 24045045
9820384068