Affordable Housing

By RCB Method& Structural Audit

What is wrong with R.C.C. Buildings?

1) More Self Load2) Less Cover to steel3) Frame Structure

R.C.C.Buildings self Load 80 %

Live Load 20 %

So Need forLight Materials.

By Hollow PrecastLoad-bearing-Wall

Hollow Block Walls are

Affordable,Speedy, Durable

Is Brick Masonry Wall

Affordable- Green- Durable?

Brick Wall ~ Block Wall

Cost of Brick ~ Block Wall15 Brick x Rs.5/Brick:

= Rs.75/ Sq. Ft.7.5”Block Wall Cost

= Rs. 40/ block So SAVING=Rs.35/Sq.ft.

Also SAVING in Time,Mortar Joint, Plaster, Labor, Environment,

Shuttering,Column, Beam,

Supervision.

Need forGreen, Load Bearing ,

Affordable , SpeedySustainable

for 100 yearConstruction Method.

R.C.C. Life…..30yrs.

R.C.B. Life........100yrs

Stone Load bearing

Bldg. Life………1000yrs

Good Construction

Needs Knowledge &

Honesty

Green Load bearing Houses Must Be Attractive Economical Eco Friendly Proven Simple Speedy Sturdy Sustainable

While Planning the Building it is more Appropriate To Work Out Which is the Most Suitable Construction Method and Plan as per the Technology. R.C.C., STEEL, PRECAST , RIB SLAB. Aluminum-ShutteringR.C.B. (Reinforced Concrete Block Masonry.)

Affordable Due To Optimum Planning Detailed Designing Detailing of each Joint Appropriate Technology

PLANNING More common walls Least number of notches Least wall area / Floor area ratio Complete detailing for each member Minimum number of staircase Least common passages Least foot print & loading

10% More Carpet Area. So Most Affordable

LESS OFFSET, MORE COMMON WALLS

1.5 BHK in 3 Lacks Beauty with Economy

TOTAL COST WITH FINISHING For R.C.C. …….. Rs. 1000/- per Sqft.

For Aluminum Form ..Rs. 1200/- per Sqft. For R.C.B . ………Rs. 700/- per Sqft.

1) R.C.C. type of construction was taught by British & we are following Beam & Column type of construction for the last hundred years or so in India. 2) R. C. C. building needs repairs within 15 years of construction.Not that anything is wrong with R. C. C. but there is more scope to use inferior material & workmanship in R.C.C.& hence need for early repair. 

3) Our Forts, Old buildings, V. T. Station, Municipal Bldg., Palaces, Towers are generally constructed by Stone Masonry load bearing method & have stood since hundreds of years without any major repair work. 4) The same load bearing technology has been further developed in U.S.A. which is Speedy, Sturdy, Simple, Durable, Eco-Friendly which also saves 30% in construction cost & is called R.C.B./ Reinforced Masonry/ C.M.U. 

By Reinforced Concrete Block Masonry R.C.B.

Method of Construction

Green Affordable Structures

Advantages(Economy, Speed & Simplicity)Architectural Features

Earthquake, Wind & Fire resistance

Conclusion

Presentation on Green Load Bearing Housing

Method Of Construction

Concrete block 8” X 8” X 16”Ultimate strength = 40,000 Kg/block

Staggered Joints In Block Masonry

R.C.B. Work Under Progress

As Air is freely available and Hollow Concrete Block is 50% hollow, if a structure is built by R.C.B. the cost of construction is slashed down.

No Beam, No Column only RCB

13 Block Layer + Slab=15 Days.

R.C.B. Pointing From Outside

In India 300 buildings have been designed by R.C.B. method in the past 30 years by us.

In the world millions of buildings have been built by this established & proven American technology in the past 90 years.

R.C.B. Users BMC Bhojwani Const.

MHADA Unity Const. P.W.D. Vipassana Govt. of Gujarat Lodha Kamat Hotel (i) Ltd. Excon Royal Hotel Arch. Bhatnagar Ganaka Hotel Arch. Kudalkar Poddar Developer Arch. Premnath. Panoramic Universal African Countries

R.C.B. Structures

Architect Bhatnagar’s Bungalow, Malad,

No Beam, Column & Offset in Bungalow

6 Storey Building At Mahim For Unity Construction

Budget Motel at Igatpuri – Under Construction

RCB Column

Interior Pointing

Method Of Pointing

BMC School At Goregaon, Mumbai

No Beam, No Column only RCB

Vertical Reinforcement At Corner

Door-Window Frame before casting Slab

AdvantagesSpeed

SimplicitySustainability

Economy

Eco - Friendly As it SAVES,100% Bricks,50% Steel & Shuttering,40% Concrete,25% Utility Bill.

96 Houses For Policemen, Jogeshwari

Vipasanna Meditation Hall, Igatpuri

Plan

For

65 feet

Meditation

Hall

R.C.B. WALL & SLAB

150 Earthquake Proof Homes, Gujrat

Foundation Work

Runner Beam

Vertical Steel.

Horizontal Steel.

Wall Footing

Foundation For R.C.B. Work

HOUSING & SLUM PROJECTS 6 Bldg. Quarters for Policemen of SRPF,

Goregaon, Mumbai For P.W.D. 16 Bldg at Vinoba Bhave Nagar transit camp,

kurla, Mumbai For MHADA. 5 Bldg. For Pancharatna Soc. Complex at Neral,

Maharashtra. Transit Bldg. For Unity Construction at Sitaladevi

Temple Rd. Mahim Mumbai. 150- Earthquake Proof House for Gujarat Govt.

at Morvi (World Bank Project.) Transit Bldg. For Bhojwani Builders at Khar,

Mumbai. Housing Complex for Lodha at Shirdi

SHOPPING MALL AT AFRICA

COMMERCIAL & SCHOOL PROJECT School & Dispensary for B.M.C at Film City

road, Goregaon (E) Mumbai. Meditation Hall for Vipassana at Igatpuri ,

Maharashtra Old man colony at Badlapur Fire Station at Illinois, U.S.A. The Eldorado Theatre at Tucson U.S.A. Shopping Centre at Tucson U.S.A. Shopping Centre (100000 Sq.Ft.)at Africa. R.C.B. Pyramid Prayer Hall at Africa.

BUNGALOW PROJECT 

Triplex Bungalow at Malvani Church, Malad (W) Mumbai.

Six Bungalow at Kalyanpur Colony, Lonavala.

Bungalow for Arch. Bhatnagar at Chickni Murud

Bungalow for Mr. Rohidas Koli at Malvani, Malad Mumbai.

Bungalow for Assi. Teachers for Vipassana, Igatpuri

Bungalow for Bhatnagar, Bordi. Bunglow for Vipasanna at Titwala Bunglow for architect Premnath at

Vasai 500 – (4 BHK) Bunglow at Africa.

Architectural Features

Arch Masonry Bungalow

Royal Hotel Building, Arizona. USA

R.C.B. Hotel, Tuscan, Arizona, USA

Bungalow At Lonavala

Beauty With Simplicity

Bungalow at Arizona U.S.A.

Slum House At Malad

Typical Compound Wall

HOTEL PROJECTS Hotel Granada Inn at Tucson Arizona, U.S.A. Hotel Granada Inn at EI Paso, Texas U.S.A. Hotel - The Chaparral at Siera Vista, Arizona

U.S.A Hotel Maharaaja Inn at Lonavala Maharashtra,

India. Ganaka Motel - NH3 - Near Manas Resort,

Igatpuri, India. Kamat Hotel at Nashik Lotus Suit at Chandigarh 4 Star Resort at Durgapur

First R.C.B. Hotel Building In India, 1977

Proposed 3 Star Hotel At Nasik For Kamat Hotel

4 Star Resort At Durgapur

Completed Masonry Building

Shear Wall Structures Are

Also Earthquake, Wind & Fire Resistance

Joint Failure in R.C.C.

Simple water Penetration Test.Slab must NOT

Leak After Casting

Fire Resistance Due To Horizontal Projection

Decorative Block Masonry

Elevation From Decorative Block Masonry

R.C.B. Decorative Blocks

Decorative Block

Masonry

Decorative Jali Block

Economy RCC RCB Savings

Reinforcement 3.5 Kg / SF XRs 55 / Kg

1.2 Kg / SF XRs 55 / Kg Rs 126.50

Rs 192.50 Rs 66 Cement 0.6 Bag/SF X

Rs 310 / Bag0.25 Bag/SF XRs 310 / Bag

Rs 108.50 Rs 186 Rs 77.50 Sand , Mettle, Brick, Plaster, Labour.

Rs 300 Rs 235 Rs 65

Finishing & Fees Rs 321 Rs 321 ----------

(Save up to Rs. 300 / SF of slab area)

Total Rs 1000 Rs 700 Rs 300

Note : By Optimized Plan get 10% more Carpet Area.

Advantages of R.C.B. Method. Economy : As steel, cement, formwork, concrete & Labor

required is almost half & due to simplicity of construction & speed, minimum saving is Rs. 300/- per sq. ft. Also by optimum planning for R.C.B. get up to 10% more carpet Area.

Speed: No heavy equipment needed on site, less formwork, less steel so construction is simple, speedier & hence economical.

Fire Resistant : Due to concrete block & 3.5" cover to steel, rusting is minimized & such buildings are fire resistant too.

Durable: Concrete blocks are attractive, durable and have excellent thermal, acoustic properties. No repair like R.C.C. is needed in every fifteen years.

Earthquake: Load bearing concrete blocks can be designed to be wind, earthquake resistant too. Up to 22 Storied.

Warranty: R.C.B. Method assured warrantee against heavy rain, flood, fire, storm, earth quake & all other natural calamities for at least 50 years.

Architecture: Ancient type of architectural elevation is also possible by R.C.B type of construction. Also R.C.B. is Environmental friendly too.

R.C.B. is also Useful For

1) Retaining Wall2) Bridge Abutment3) Bridge Pier4) Highway Culverts

REMARKS 1) For Affordability Architects/Engineers/Clients need to take a lot of efforts in Planning, Design, Detailing, & technology.2) The Architect / Engineer /Client must learn about Planning for the Technology first.3) Affordable structure is always green.4) Affordable does not mean cheap construction.5) By Optimum Planning we get 10% more Carpet Area.(Bonus to the Builders)

CONCLUSION Considering Durability, Speed, Simplicity, 30% Saving & 10% more Carpet Area. This Eco Friendly R.C.B. Construction is Particularly Suited For,

Housing, Slum Project, Transit Camp, Schools & Hospital, Hotel & Bungalow, Industrial Projects, Retaining Wall, Culverts etc.

Thanks……All of You, AfforadableConstruction.in98 20 86 77 55

Ganesh Kamat B.E.(Civil),M.S.(USA) 42yrs.Exp.

Structural Audit Engineer

AffordableConstruction.inE-mail:ganeshkamat47@gmail.com

Affordable Housing Adviser