ENGLISH - General Presentation

7/31/2019 ENGLISH - General Presentation

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February 2010 1

THE COFFOR SYSTEM

Description

Applications

Tests performed - Certifications

Advantages over other Systems

Cost effective


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February 2010 2

DESCRIPTION (1)

Integrated formwork System

Two grids (riblathe)

Vertical stiffeners every 20 cmstrengthen the panel

With or without thermal insulation

Horizontal links connect the twosides together

Hot dip galvanized steel


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DESCRIPTION (2)

Concrete is poured between the two

grids

Excess water is eliminated by gravity

Air is also eliminated

Concrete pressure is greatly reduced

COFFOR remains in the wall after

pouring


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Less than 1-2% of concrete go through the grids

CONCRETING


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Concrete can be poured from the slab formwork of the upper floor

CONCRETING


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Even when concrete is poured horizontally and vibrated,

less than 1-2% of concrete pass throuh the grids

CONCRETING


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COFFOR

A CONSTRUCTION

SYSTEM THAT IS

FAST

EASY TO USE

COST EFFECTIVE


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House

China


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House

China


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House - Russia

Russia


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The same house completed

Russia


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Villa - Russia

Radius wall - Russia


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Villa - Russia

Murs courbes


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Extension of a medical center

France


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Villa

France


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Villa

Bahrain


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Social house

Egypt


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Same house completed

Egypt


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House

Kurdistan


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Villa

Thailand


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Villa

China


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Development (52 villas)

China


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Development - 56 villas

France

R id


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Residence

China

Cl b h


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Club house

Morocco

Cl b h


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Club house

Morocco


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High standing condominium

France


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February 2010 30India

Administrative building


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Administrative building

India


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February 2010 32

Five story building with exterior

insulation - China

The concrete shell

is done in 28 days(350 m2 per floor)

With only 25

workers

Th b ildi l d


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The same building completed

7 story building


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7-story building

China


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Residential building

France


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High standing Residential Building

Four story building with exterior insulation

France (under construction)



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Four story building with exterior insulation(completed)

S i l h i ( d i )


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Social housing (under construction)

Five story social building with exterior insulation -

under construction - China


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Residential development


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p

Five 10-story buildings- ChinaThe concrete shell (30.000 m2 floor space) was done in 58 days



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Five 10-story buildings

The concrete shell (30.000 m2 floor space) was done in 58 days

C i l/R id i l D l


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Commercial/Residential Development

12-story building under construction - China

The concrete shell was completed in 3 months


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The same building after a mortar coating


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Commercial/Residential DevelopmentFour 9-story buildings plus one 12-story building. In

total, more than 40.000 m2 of floor space

The development was

completed in 8 months 3 months for the concrete shel

5 months for the second work

C i l b ildi


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Commercial building

Ground floor (walls are 5 meter high) - China



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6-story building - China


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University dormitory China


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University dormitory - China

The walls are 3.50 m highThe concrete structure (8400 m2 over 7 levels)

was done in 7 weeks

University dormitory


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y y

Building completed

R id ti l d l t Chi


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Residential development - China

Development of 35 buildings 5-story and 10-story

R id ti l d l t Chi


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Residential development - China

12-story buildings



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p

Housing for the Military Hospital - Algeria



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Housing for the Military Hospital - Algeria



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Residential development of 47 buildings - Algeria



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Residential development of 47 buildings

Warehouse 12 meter high walls


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Warehouse12-meter high walls

China

W h 12 t hi h ll


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Warehouse12-meter high walls

China - Completed


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High Rise Building


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High Rise Building

Hotel extension (34 stories) - China


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CERTIFICATION


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CERTIFICATIONThe first construction was done in 1996 (first

generation of COFFOR)

for the piles of theHospital George Pompidou in Paris, France

Over 5.000.000 m2 of constructions have been built

COFFOR is certified: CSTB (France), CNERIB(Algeria), ITB (Poland), Switzerland, China, Russia,

Thaland, Turkey, Saudi Arabia, UAE, Egypt, etc.)


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Deflexion test


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The COFFOR panel 200 cm x 122 cm x 15 cm has no rebar reinforcement

Under centered deflexion, the panel broke under a weight of 48 KN (4,8 T)

In addition, the panel demonstrated high ductility


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COFFOR is a construction System


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February 2010 67

COFFOR is a construction System

easy to useCOFFOR offers advantages:

For the contractor

For the controlling organization

For the developer

For the user


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ADVANTAGES (2)


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Easy to useNo qualifiedpersonnel is necessary contrary toother Systems

No need for accessories (wires

tubes are sufficient) contrary toshutters

acile

ADVANTAGES (3)


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ADVANTAGES (3)

Easy insertion of rebar(if necessary)

No need to add rebarin current portion ofwalls

Elimination of anti-

crack welded wireacile

ADVANTAGES (4)


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ADVANTAGES (4)

Visual control of the pour(no segregation)

Increased securityno needfor crane

Easy insertion of conduitsfor plumbing and electricity

Cost effective compared toother Systems

acile


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ADVANTAGES (6)


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Easy use of all type of

finishing. Stucco bondsvery well on the riblathe


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ADVANTAGES (8)


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February 2010 75

INSULATED COFFOR

offers an exterior insulation

that eliminates thermalbridges

COFFOR can build all

parts of constructions


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February 2010 76

parts of constructions

Walls

Slabs, roof

Columns, beams

Foundations

Walls


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Facade wall

Walls


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Facade wall


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Walls


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Mur de faade

Bahrain


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Walls


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China


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Walls


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Facade wall before concreting


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Walls


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Interior wall after concreting - France


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Radius walls


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Rebar is used to align COFFOR

Rebar


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Walls


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Radius wall (staircase) - France


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Walls


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Facade wall with exterior insulation - China


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Slabs


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Slab before rebar placement - Egypt


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Slabs


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Slab and lintel with COFFOR - China

Roofs


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COFFOR panel before concreting - France

Roofs


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Inclined roof after concreting

China

Roofs


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Inclined roof after concreting - China

Roofs


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Inclined roofExterior view - China


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Lintels


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Lintel over a door - China

Roofs


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Inclined roof - France

Roofs


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Inclined roof - France

COFFOR can build


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Rectangular columns

Round columns


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Columns


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Rectangular column

Columns


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Round column

Columns


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Round column


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Tunnel


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February 2010 118France

COFFOR can build


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Sustaining walls

Sustaining walls


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Sustaining wall along motorway

before concretingFrance

Sustaining wall


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Sustaining wall along a motorway

after concretingFrance

Sustaining wall


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Reinforcement of road - France

Surrounding wall


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New Caledonia

Walls for fitness center


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Walls for 2 SPAS and slab around poolsFrance

Walls for fitness center


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Walls for 2 SPAS and slab around pools

Surrounding wall


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27 km long - Russia

COFFOR can build


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Swimming pools

Tanks

Various piping projects


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Swimming pool


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COFFOR pool delivered in KIT

Swimming pools


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Insertion of reserves is easy

Tank - China


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Water purification tank

COFFOR can be used for


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Foundation

Crawl space

Foundations


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With single COFFOR panels (one side)

Foundations


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Foundations


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Foundations


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Crawl space


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COFFOR panels placed horizontally - France

Crawl space


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The exterior side is higher than the interior sideElimination of edge formwork for the slab - France

COFFOR can also build


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Dikes

Dikes


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Without drying the area - France

COFFOR can reinforce


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Weak walls that need

reinforcement

Commercial building- France


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Rehabilitation of an existing building

Reinforcement of facade wallsExterior view

Commercial building


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Rehabilitation of an existing building

Reinforcement of facade walls Interior view

Historical wall


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Before reinforcement - France

Historical wall


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Reinforcement with COFFOR

ADVANTAGES/DISADVANTAGES OF

COFFOR VS. SHUTTERS


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DISADVANTAGES OF COFFOR VS.

SHUTTERS

A finishing is necessary


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A finishing is necessary

COFFOR cannot be used again

Necessity to wear gloves

ADVANTAGES OF COFFOR VS.

SHUTTERS (1)

No dismantling necessary


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No dismantling necessaryElimination of all problems related to shutters

(investment, availability, transport, cleaning,

maintenance, rotation, storing)

No need for qualified workers

No accessories

ADVANTAGES OF COFFOR VS.

SHUTTERS (2)

No crane necessary


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February 2010 149

No crane necessary Increased security on the site

Easy control of the rebar presence

Easy control of the pour

Possibility to pour one story including walls

and upper slab in one pass

Easy integration of second work reserves

(piping for electricity and plumbing)

COFFOR IS COST EFFECTIVE

Compared with traditional column and beams structure,


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COFFOR uses much less steel

COFFOR uses a little more concrete but eliminates

most of the bricks

COFFOR saves on labor and on construction time

COFFOR USES LESS STEEL

For a 5 story-building for example,

50 percent less steel with COFFOR compared


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50 percent less steel with COFFOR comparedwith a column and beams structure

No rebar in the current portion of the walls(compliance with EUROCODE)

With COFFOR, only rebar in corners andaround the opening

Steel quantity in COFFOR panels correspondsto 60 kg/m3 (1 sqm weighs 11 kg)

COFFOR USES A LITTLE

MORE CONCRETE

With COFFOR most column and beams are


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With COFFOR most column and beams are

eliminated

Quantity of concrete with COFFOR is about 20-30

% greater than concrete in frame structure

Approximately 60-70% of bricks are eliminated

with COFFOR

COFFOR SAVES ON LABOR AND ON

CONSTRUCTION TIME

Man-hour with COFFOR is reduced by 70%d l d b


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Man hour with COFFOR is reduced by 70%compared to column and beams

Less qualification of workers with COFFOR

Construction time with COFFOR is 3 to 4 times

faster:one floor per week with COFFOR

One floor per month with traditional column and beams

Savings in management and overhead isimportant for the contractor

CONCLUSION

COFFOR builds shear wall ---> safer construction


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COFFOR builds shear wall > safer construction

COFFOR is faster

COFFOR is simpler

COFFOR is cheaper


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THANK YOU FOR YOUR ATTENTION!

www.coffor.com

Documents

ENGLISH - General Presentation