User:Fza2022/Amiwiki

Amiblu
Amiblu Holding GmbH based in Klagenfurt is a manufacturer of glass fiber reinforced plastic (GRP) pipes; in 2017 Hobas Europe (part of the Austrian conglomerate Wietersdorfer) and Amiantit Europe (part of the Saudi Amiantit Group) merged together. Together with the headquarters in Klagenfurt, Amiblu operates production facilities in Germany, Spain, Poland and Romania and employs around 1500 people. The research and development center in Norway is an officially accredited testing laboratory for GRP pipes.

Products
Amiblu produces glass fiber reinforced plastic (GRP) pipes using two processes: centrifugal- and winding process. With these two processes, not only circular, but also non-circular (NC) pipes, molded parts, shafts, containers and accessories such as couplings can be made of glass fiber reinforced plastic (GRP).

Those products are used as drinking water-, waste water-, irrigation and drainage pipes, as hydropower-, protective- and ventilation pipes; they are used in shaft construction, flood protection and in various industrial applications.

The pipes can be laid in open trenches, trenchless by jacking or relining, above ground and in water (fresh- or saltwater).

Hobas centrifugal process and chemical composition
The products essentially consist of unsaturated polyester resins (UP), chopped glass fibers (GF) and mineral reinforcements. In a rotating die the tube is built up from the outside inwards. After the material has been loaded in the die, the rotation speed is increasing from up to 75g (75 times the acceleration of gravity), which forces the raw material against the die wall, degassing, compacting and hardening.

This process enables the wall thickness to be consistently uniform with high longitudinal compressive strength. The three-dimensional chemical bond of the resin prevents deformation.

Flowtite Technology
Amiblu pipes with Flowtite technology are manufactured using a continuous advancing mandrel process. This process allows the use of continuous glassfiber reinforcements in the circumferential direction.

The filament winding manufacturing machine consists of a continuous steel band mandrel supported by beams in a cylindrical shape. As the beams turn, friction pulls the steel band around and a roller bearing allows the band to move longitudinally so that the entire mandrel moves continuously in a spiral path towards the exit assembly. As the mandrel rotates, all composite materials are continuously metered onto it in precise amounts with the help of electronic sensors. Firstly, mould release film, followed by various forms and patterns of glass fibres, embedded in a polyester resin matrix. The structural layers are made of glass and resin only, whereas the core layer includes pure silica. After the pipe has been formed on the mandrel, it is cured and later cut to the required length. The ends of the pipe section are calibrated to fit the coupling.

NC Line Technology
Amiblu NC Line pipes with their non-circular cross-sections are ideal for relining old city sewers, culverts and channels that often hold non-circular shapes. Amiblu non-circular pipes are also used for open trench applications.

The non-circular profiles are produced using a filament winding technology. Resin-filled continuous and chopped glass fibers are wound on a rotating non-circular mandrel in a controlled process. Using this technology, a very dense laminate is created that maximizes the contribution from the three basic raw materials: glass fibers, resin and sand. Amiblu NC Line can be customized according to customer demands and easily be adapted to different types of shapes and geometries.

Glassfiber reinforced plastic (GRP)
Glassfiber reinforced plastic feature a small carbon footprint in production, and they allow a fast installation and efficient operation. They preserve resources and protect the integrity of networks thanks to their corrosion and abrasion resistance, excellent leak-tightness, weather and root infiltration resistance, as well as buckling resistance.

The material’s very long lifetime makes it a sustainable, environmentally friendly solution as well as trouble-free, cost effective long-term investment.

Sewer and stormwater pipes
Sewer and stormwater pipes made of GRP are inherently corrosion-resistant. They easily withstand the low pH-value of biogenic sulfuric acid, which is commonly found in municipal wastewater. The pipes are used for combined and separate sewer systems as well as bridge, road, and tunnel drainage.

Non-circular pipes for rehabilitation (NC pipes)
NC pipes with their non-circular cross-sections are ideal for rehabilitating old city sewer, but they can also be installed as new pipelines in open trench. Their shape is custom designed according to the projects demands.

Retention tanks and storage sewers
The storage systems help temporarily store and treat excessive amounts of storm- and wastewater. This way. flooding can be prevented and wastewater treatment plants protected from overloads.

Amiscreen for separating solids
With the Amiscreen, Amiblu provides a very reliable and efficient solution for separating solids from wastewater. The screening elements retain 100 % of dirt particles with a grain size of more than 8 mm. During heavy rainfall, this helps protect sewage treatment plants from overloads and keeps receiving waters clean.

Hobas PU pipes as culverts for rivers and streams
Hobas PU pipes feature an exceptionally durable and smooth inner liner made from polyurethane that resists abrasion very well and also allows for a great hydraulic performance. The pipes are often used as culverts for rivers and streams that transport sand, stones, and other debris.

Trenchless installation with jacking pipes
Amiblu GRP pipes can be installed easily and with a low carbon footprint by means of trenchless technologies such as microtunneling or relining. These technologies are especially convenient when pipelines are laid in densely populated areas such as city centers, protected natural habitats, or beneath heavily frequented roads.

Not having to open trenches for the installation means less damage to nature and existing infrastructure, and less CO2 emissions from construction machinery and traffic jams. Residents and nature are protected from noise, dirt, and vibrations.

Click here to see how its done.