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FAQ
Sphere of application for GRP
How to tie the reinforcement?
How the GRP reinforcement is sold? In bars or in coils?
How to bend GRP reinforcement of weld it on to anything?
Can we measure the amount of FRP in tons?
Glass-reinforced plastic – photo and video.
The state standard regulations (GOST) for GRP
 

Glass-reinforced plastic – FAQ’s

 

In this section we publish the most frequently asked questions about composite GRP application and give you the answers to them.

 

 

 Sphere of application for GRP?

 

The main application sphere for GRP is foundations. Of course , it is not the unique application sphere for FRP, but foundations can reflect the main advantages and level the disadvantages of FRP’s. Application of FRP gives considerable costs saving in comparison with traditional steel reinforcement. You can read about the sources of this economy in this article that was written a long time ago, but still could be useful for you.

Composite polymer glass-reinforced plastic is applied for:

  • Reinforcing of foundations and structures, laying on elastic formation (road slabs for site, bypass, temporal and other roads with full replacement of steel reinforcement etc.);
  • Reinforcing of normal (unstrained) concrete structures;
  • Reinforcing of porous and macroporous concretes (draining tubes), light and cell concretes, under cast-in-situ construction;
  • Improvement of walls heat insulation properties, its is recommended to apply aluminum composite panels (ACP) under flexible connections making to use it as a layer in brick buildings;
  • Making of dowels for outside heat insulation fastening to the walls;
  • Production of bars and nets for bearing capacity increase in reinforced brick structures;
  • Gypsum fiber concrete structures;
  • Reinforcement of roadbeds and asphalt coverings (to prevent cracking and deep ruts formation);
  • Reinforcement of road construction objects, exposed to aggressive impact of anti-icing reagents;
  • Structures, exposed to corrosive mediums impact, that according to GOST 31384, SNIP 2.03.11-85 cause steel reinforcement corrosion (chloride salts, corrosive gases of high concentration etc.);
  • Reinforcement of soils and rocks under shat-sinking, tunneling works and foundation pits excavations;
  • Reinforcement of embankments on soft formations (marshes, moistened soils, side passages, temporary roads);
  • Reinforcement of slag portland cement concretes, pozzolana concretes, cementing mixtures with active mineral admixtures etc.;
  • Reinforcement of cast-in-situ concretes with chloride anti-frost admixtures (calcium chloride CC, calcium nitrate-chloride NCC, calcium nitrate-chloride with urea NCCU etc.);
  • Situations, when there is no possibility of fulfilling the normative requirements for concrete protection layer (thin-walled structures, e.g.: noise protection panels, fences, architectural structures etc.)

In these cases the advantages of FRP reveal themselves the better way. The economic advantage from FRP application is the cost saving (for reinforcement purchase, transportation, reinforcement frames mounting) that is from 30 to 60 %. 

Basing on the FRP we started the production of GRP coupling screws. This coupling screw is the GRP bar, in which the body diameter, outside rib winding diameter, rib winding pitch and rib height are chosen to ensure the standard steel nuts tightening.

GRP coupling crews is pour newly developed product. Of course we did not carry out revolution in construction. Of course, the combination of two standard steel nuts and GRP threaded coupling screw will not ensure the same tensile strength as two steel nuts with steel coupling screw. But we are sure that out threaded screw will find its spheres of application. The main advantages of new product over steel screw are: low heat conductivity and low shear resistance. These two characteristics allow to apply GRP couplings as disposable elements and leave them into concrete after its solidification. You can find more information about this in our article GRP coupling screw for formwork.

There are certain cases of non-traditional use of GRP structures. Namely, the use of GRP bars as supports for plants and flowers! In fact, this structure with GRP bar is perpetual. It looks very accurately, does not decay, does not corrode, does not need coloring and have the high level of strength – ideal peg for plants support. But the main advantage is that these structures are the cheapest on the market in comparison with analogue specialized products. The people’s fantasy is not limited by GRP pegs, many of them are constructing handmade pergolas and espaliers. If the simple arched or flat framework for climbing plants is needed the GRP bars, ensuring strength, simplicity and durability, are the best solution.

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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.

   
 
 
 
 

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