Aluminum Formwork
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WTF Concrete Formwork System (Wall-Ties & Forms, Inc.)WTF aluminum formwork is a rapid paced construction system for forming cast in place concrete structures. WTF provides aluminum formwork for reinforced concrete construction of single and multi-story buildings and enables the walls and slab to be placed monolithically in the same operation. This increases efficiency, and also produces an extraordinarily strong structure with excellent concrete finish. Due to the fine tolerances achieved in the aluminum formwork components, consistent concrete shapes and finishes are obtained floor after floor, building after building, conforming to the most exacting standards of quality and accuracy. This allows plumbing and electrical fittings to be prefabricated with the certain knowledge that there will be an exact fit when formwork is assembled. The dimensional accuracy of the concrete work also results in consistent fittings of doors and windows. The smooth finish of the concrete greatly reduces or eliminates the need for costly plastering. The WTF formwork system has been used in the construction of hundreds of thousands of structures including residential and commercial structures in single story, low rise, and high-rise construction. It has been proven to be very successful in the construction of mass housing projects worldwide. It is fast, simple, adaptable and very cost effective. The WTF formwork system is unique because it forms all of the concrete in the structure including, walls, floor slabs, columns, beams, stairs, window details, balconies and various decorative features in exact accordance with the architect’s design. No other system can match WTF formwork flexibility to handle all design conditions. The WTF system also allows for the most efficient and cost effective insulation for areas of the world where it is required for extreme temperature conditions.The WTF system can be erected by unskilled labor and without the need for hoisting cranes. The largest panel weight is not more than 32 kgs (70 Lbs). This enables a single worker to handle the WTF formwork components. The panels and other sections are secured and fixed by steel pins and wedges with formwork ties. The only tool required is a hammer. The WTF system can save as much as 15% of the total cost of construction vs. traditional methods such as block or post and beam construction.
Transcript of Aluminum Formwork
Residential Construction With Aluminum Formwork
In the past decade the world has had tremendous growth in residential construction. During this period developers have sought faster and more cost efficient methods of construction. This has led to a large number of developers abandoning traditional methods such as block or post/beam construction in favor of cast in place concrete construction.
While the move to monolithic cast in place construction has been more of a monetary decision based on speed, labor savings, and reduced finishing cost, this has led to exceptionally disaster resistant structures.
These structures are being constructed on a mass scale in such places as Mexico, Venezuela, Costa Rica, Guatemala, and many others countries.
Mexico
Venezuela - 1250 Single Story Duplex's
Chile – 650 Large Single Family Homes
Costa Rica – 300 Two Story Single Family Homes
Guatemala - 800 Unit Townhouse Project
Pachuca, Mexico – 5,800 Home Project
Ensenada, Mexico 12,000 Home Project
Venezuela - 12 Story 36 Building Apartment Project
The Construction Process
After compaction of site, slab forms are erected, trench footings are dug, plumbing and electrical are installed.
Guatemala
The Construction Process
Steel is placed in slab to include wall verticals
Guatemala
The Construction Process
Slab concrete is placed following normal practices.
Mexico
The Construction Process
Wall Steel attached to vertical steel.Dominican Republic
The Construction Process
Electrical boxes and conduit are then attached to the wall steel.Mexico
The Construction Process
The conduit used in Mexico is flexible and includes the wiring pre-installed
The Construction Process
Electrical Boxes attached to steel
The Construction Process
The WTF formwork used around the world is handset. This may seem labor intensive, but crews of five to ten men can strip, set, and pour a structure a day depending on size.
Brazil
The Construction Process
Handset formwork enablesthe developer to cast most if not all elements of the structure.
This includes structural,non-structural, andarchitectural elements
Guatemala
The Construction Process
Formwork setting begins in a corner. Typically multiple corners arestarted depending on size of crews used.
The Construction Process
Forming continues until all walls are closed. The structure is then ready to receivethe deck formwork.
The Construction Process
Decking forms are also started from a corner and are handset
The Construction Process
Deck completed, ready for steel placement.
The Construction Process
Once decking is in place shoring is installed.
The Construction Process
Deck steel, electrical conduit, and boxes installed.
The Construction Process
A majority of builders use boom pumps to place concrete. Also used are trailer pumps and concrete placement buckets
Venezuela
Jamaica
Brazil
The Construction Process
Formwork is remove the next day, ready to repeat the cycle.
Mexico
The Construction Process
Formwork beams are left undisturbed during the deck form removal process.
Venezuela
The Construction ProcessFinishing materials that are needed are typically no different than the traditionalconstruction methods such as block or post/beam. This material is greatly reduceddue to the smooth concrete walls achieved with the formwork.
Mexico
The Construction Process
For areas that require insulation
Mexico
The Construction Process
Insulation is easily incorporated into the formwork
Mexico
The Construction Process
Once concrete is placed and cured the formwork is removedleaving insulation permanently bonded to the concrete.
Mexico
The Construction Process
Finishing materials are applied directly to the foam
Mexico
Example Projects USA
Example Projects USA
Example Projects USA
Example Projects Tanzania
Example Projects Tanzania
Example Projects Tanzania
Example Projects Dominican Republic
Example Projects Dominican Republic
Example Projects Nigeria
Example Projects Nigeria
Example Projects Nigeria
Example Projects Nigeria
Example Projects Nigeria
Example Projects Guatemala
Example Projects Guatemala
Example Projects Guatemala
Example Projects Guatemala
Example Projects Guatemala
Example Projects Venezuela
Example Projects Venezuela
Example Projects Dominican Republic
Example Projects Dominican Republic
Example Projects Dominican Republic
Example Projects Guatemala
Example Projects Guatemala
Example Projects Guatemala
Example Projects Guatemala
Example Projects Guatemala
Example Projects Mexico
Example Projects Mexico
Example Projects Mexico
Example Projects Venezuela
Example Projects Venezuela
Example Projects Venezuela
Example Projects Mexico
Example Projects Mexico
Example Projects Mexico
Example Projects Mexico
Example Projects Mexico
Example Projects Mexico
Example Projects Venezuela
Example Projects Venezuela
Example Projects Venezuela
Example Projects Venezuela
Example Projects Venezuela
Formwork References
www.concrete-forms.blogspot.com
Formwork Blog
Formwork Photos
www.picasaweb.google.com/ConcreteForming
www.youtube.com/user/ConcreteForms
Formwork Videos
Wall-Ties & Forms, Inc.
www.wallties.com
