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Fibre-reinforced plastic for construction
Anchors for geonet fastening
Composite polymer flexible connections
Formwork fastening couplings
 

Formwork couplings are applied in cast-in situ construction.

It is not a secret that cast-in-situ construction allows to erect the most durable buildings, implement the most bold ideas and design the constructions of almost all spatial forms. It should be noted also the high speed of construction, its relative simplicity, and the need of only two construction materials: reinforcement and concrete.

What is cast-in-situ construction technology? To cut a long story short it is like making the ice rink in winter: construct the boards to make the dimensions and shape of future rink, take the water and flood it into constructed form and wait till the water freezes. By analogue with ice rink formwork serves as boards in cast-in –situ construction, concrete is the water, plus the reinforcement for structure durability.

The construction process happens in following order:

  • The future walls shape is specified by making the formwork;
  • The reinforcing cage is placed in the space between formwork panels (that will be casted by concrete in future);
  • The space between formwork panels is casted by concrete;
  • After concrete solidification the following actions are carried out depending on type of formwork (movable or retained):
  • If the formwork is movable the formwork plates are removed for its further use;
  • If the formwork is retained nothing should be done.

If you think that this technology could be used only under major objects construction, you are not right! This technology is also used in private construction. The only difference is that more expensive and universal movable formworks are used in industrial construction. The cheaper retained formworks are used in the private construction. In this case after concrete solidification the formwork is not removed and is kept as outer and inner shell of casted wall. The following materials are normally used as cheap retained formwork: cement-shaving plate sheets or similar materials or even flat slate sheets.

 

The use of retained formwork in private construction provides:

  • Economy on construction materials, because concrete is cheaper than any other construction materials (brick, construction beams, blocks etc.);
  • Speeding up of construction time;
  • Cast-in situ building, that will exceed by durability every other building, constructed by other technologies.

 

What is the formwork coupling?

The problem that constructor should solve under application of this technology is the necessity of strong formwork panels fixation, to avoid its swelling and separation after concrete casting inside formwork.

The special couplings are used for this purpose. Formwork coupling is the coupling bolt (steel pin, reminding the reinforcement with coarse thread) with two coupling nuts. There are galvanized and normal types of nuts. This coupling is designed for tying of formwork plates. But what element is used as a spacer, determining the distance between formwork plates? The answer is simple. A piece of plastic PVC tube with two plastic cone-shaped heads is used together with formwork coupling. This tube of required diameter serves as spacer between formwork plates and as coupling bolt cover, allowing to remove the reusable coupling bolt after concrete solidification for its further use.

The photos of formwork fixation by coupling bolt with coupling nuts.

Prices of formwork couplings (Price-list).

In our company you can buy coupling bolts, coupling nuts and auxillary elements in wholesale and retail amounts. The prices are given in the table below.

 

 Item

 Price with VAT

until 1 000 pcs.

 Price with VAT,

more than 1 000 pcs.

Formwork coupling
Formwork coupling bolt 100 rub./run.m 90 rub./run.m.
Formwork coupling nuts 100 rub/pcs 90 rub/pcs.
Spacer “Konus” “FK-22” 0,90 rub/pcs. 0,70 rub/pcs..
Element “Plug” -22 0,85 rub/pcs. 0,65 rub/pcs.
PVC tube, D=25 mm, thickness – 1,5 mm, L=2 m 36,00 rub/pcs. 28,00 rub/pcs.

 

 

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О компании Plast-Komposit

Целью компании «Пласт-Композит» является внедрение новейших технологических решений, обеспечивающих производство и поставку уникальных материалов, способных совершить переворот в нашем понимании о строительстве, строительных и отделочных материалах. При этом речь идет не о выпуске экспериментальных образцов, а о серийном производстве.

Наша компания была создана группой инженеров и технических специалистов из различных областей науки. «Plast-Komposit» не занимается вопросами поиска доказательств существования внеземных цивилизаций, мы просто внедряем уникальные технологии и выводим на рынок готовые решения и продукцию.

Наши приоритеты: честность, точность, качество, эксклюзивность, плановость. Наш лозунг: «Nihil ei infectum ratus», что означает «Нет ничего невозможного».

Мы не одобряем работу с клиентами, которые в отношении поставок придерживаются правила «Нам это нужно ещё вчера». Во-первых, - мы не пожарная команда; во-вторых, - есть другие клиенты, сделавшие заказ заранее и есть плановость; в-третьих, - существуют определенные мощности производства и определенный технический регламент, определяющий длительность технологического цикла изготовления продукции конкретного типа и качества. Безусловно, мы дорожим каждым из своих клиентов, но не в ущерб приоритетам компании, о которых было сказано выше.

   
 
 
 
 

Plast Composite Co. Ltd. © 2012
г.Санкт-Петербург, пер. Б. Казачий д.11

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