Build Daily

August 12, 2017 18:07

Formwork for monolithic construction : construction materials

Industrial monolithic formwork: appointment

device principle is the same as in the arrangement of an amateur, but instead of random planks, pieces of plywood, particle board and OSB are used special design elements, and the bars and pegs are replaced by reliable stops and ties.Professional formwork for monolithic construction is intended primarily for the construction of large industrial, commercial, less residential buildings and structures, so constructively should provide a comprehensive solution of a number of design decisions, and have up to 100 operating cycles.

Formwork for monolithic construction

Accordingly, monolithic formwork equipment includes a set of elements:

  • primarily, Shields, having specified dimensions and are made of materials designed for several parameters (see below);
  • compact fasteners for fixing boards during installation of formwork;
  • locating lugs (external mount) and tie (the connection opposite of panel elements with each other);
  • regular fixture and other additional accessories.

As you can see, quite a complex structure, only the professionals can work with it.Since the formwork for monolithic construction is classified as removable, reusable, it is necessary to be able not only to produce the correct installation, but also competently to dismantle it after the concrete pour.Conventionally, manufacturers offer for this position (destination) can be divided into three groups:

  • construction of foundations;
  • device monolithic formwork walls and other vertical structures (columns, pillars, props);
  • assembling formwork horizontal overlaps;
  • arches, columns, stairs to the standard set are not included.

Materials and dimensions of the formwork for monolithic construction

There are several variants of the main switchboard elements, each of which has a right to exist.However, the goal of industry leaders is the same: to ensure the reliability and durability of structural elements.Therefore, the material for the device monolithic formwork walls and ceilings must have the following characteristics:

  • withstand high loads over a long period;
  • prevent deformation and linear bends;
  • have low moisture resistance;normally such an effect on multi-layer boards achieved by applying a special composition (e.g., melamine resins) onto the inner surface;
  • have a small specific weight: the lighter the item Designer, the easier and faster it can be installed and dismantled.

Formwork

As a material for the device monolithic formwork walls and columns are most often used plywood, steel, less expensive aluminum, plastic.The first option is the cheapest and easy to use.For example, the panel Woodform almost seven times lighter than steel and twice as analogues them cheaper, while manufactured in the form of compressed and glued three-layer boards of fir and other softwood timber.Note that the mechanical characteristics of such monolithic formwork walls and columns in a sufficiently high N / sq.mm with the appropriate thickness:

Mechanical characteristics 21 mm 27 mm Min.value ON B3023
Bending strength 40 35 20
Modulus 10000 10000 10000

Column Formwork WOODFORM

All manufacturers shuttering try to maximize the size rangeelements for their products to allow formwork assembly for monolithic construction of any complexity.How these attempts succeed, try professional designers and builders, but again, for example, we present the format WOODFORM company boards intended for shuttering unit wall:

  • standard: from 1000 to 3000h500 mm (dimension 2500 and 3000 can be the width of 1000);
  • enlarged in line along the length dimensions are respectively 4000, 5000 and 6000 mm in width gradations of 500 to 2000 with 500 magnification, i.e.A total of twenty sizes

similar picture in the "column" group, so choose a few.In fairness it should be noted that most of the leading manufacturers of formwork structures have a similar range of products.

Advantages of monolithic formwork

Usually, when people talk about preferences, implied comparisons with similar or close in structure things.In this case, you can map the parameters panel, monolithic and brick buildings.The economic side of the issue will not be considered (now such evaluation is not quite correct), focus on the man-made factors.What can be attributed to the pluses monoliths.

  1. builders working conditions.You do not need huge areas for placement of materials, a minimum of heavy lifting equipment, snout building fits into the city limits.
  2. Lifetime.According to experts structure built using monolithic formwork, can stand up to 200 years.To challenge and verify this fact, we will not, but if we compare the degree of corrosion of welded joints in the panel house with a walled fittings in the monolith, the victory clearly on the side of the second option.
  3. Load capacity.Overlapping of buildings subject to building codes to withstand loads up to 600 kg / m2, which is three times greater than that of panel designs.
  4. construction time.With panel option when the competent organization of the work is almost complete parity, brick builders - handicap twice.

Removable formwork for monolithic construction

formwork system WOODFORM best suited for professionals and for those who for the first time faced with the need to perform solid work.With its intuitive design, assembly and disassembly is simple and convenient.