Pultruded GRP - stable section

Currently, the domestic construction market offers a new material - corrugated fiberglass, obtained by pultrusion. It is unique and differs from traditional materials such qualities as: the high physical-mechanical and thermal properties, low weight, environmental friendliness, durability and corrosion is currently in the domestic construction market offers a new material - corrugated fiberglass, obtained by pultrusion. It is unique and differs from traditional materials such qualities as: the high physical-mechanical and thermal properties, low weight, environmental friendliness, durability and corrosion resistance. Pultrusion (from English "pultrusion" - a way to get odnoosnoorientirovannogo plastic) - high-intensive method of producing glass fiber, also called "drafts". It is based on pulling the bundle of glass fibers pre-impregnated with the polymer composition through a heated spinneret given profile. It is formed and cured fiberglass profile. At the exit of the die is obtained ready-made material having a cross section defined by the spinneret, and stable properties such as length and cross section. Established after the die cutting unit can cut the product of any length with high accuracy, with a given length can be determined only by transport facilities of the customer and reach tens of meters. Pultruded technology allows straightforward product of any constant cross-section. Finished fiberglass - multi-material, so the production technology is quite complex. Upon receipt of fiberglass pultrusion method requires the maximum synchronization of all manufacturing operations, otherwise the production profile will be impossible. Finished fiberglass has good mechanical and dielectric properties. Properties of Pultruded GRP: weather resistance, ultraviolet radiation and the aquatic environment; high corrosion and biological stability, the unique chemical resistance, lower, compared with wood, toxic flue gases produced during combustion, a wide range of operating temperatures - from -60 ° C to +80 ° C); radio transparency, low water and moisture absorption. Among the shortcomings of Pultruded fiberglass can be noted a pronounced anisotropy of properties, as well as the high cost: the profile is more expensive wood or iron profile of the same section, but cheaper than aluminum. Pultruded fiberglass is widely used in construction as load-bearing (attic, hangars, frame construction, verandahs, balconies, greenhouses), and not bearing constructions (windows and door profiles, veneer and cashing the door, the elements of false ceilings, cornices, gutters). Possible use for the manufacture of formwork, or as a corrosion-resistant reinforcement for concrete. Pultruded fiberglass rods can be used as fasteners for curtain panels. The tests ready profile show that I-beam length of 6 meters, laid on supports, has a middle value of the natural deflection of 6 mm. At the same time, our calculations and the subsequent testing of finished panels showed that the frame house of Pultruded fiberglass and lined with pine veneer, is able to withstand wind speeds at a wind speed of 300 km per hour. Thus, the frame house building may be one of the main consumers of Pultruded profile. Other possible areas of Pultruded fiberglass associated with its main advantages: a constant cross-section and almost unlimited length can use it in road construction (barriers, fencing poles, light poles, posts for road signs, flip bridges) in a cottage and cottage construction (flagpoles, pallets, decorative elements, railings, fences, dekking, poles for antennae and windmills, the elements of garden furniture, watering and irrigation systems), as subjects to rest and life (the rod, the elements of racks of tents, collapsible items of furniture, stairs, ladders, sticks reference) in the chemical industry (fencing, decking, corrosion-resistant equipment items) in electrical engineering (the elements of security systems, power transmission towers, tubular structures for cabling and wiring, minichannel). Source: http://www.stroyfirm.ru/articles/article.php?id=100