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Application of fiber reinforced concrete
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Fiberglass reinforced concrete (GFRC) is most suitable for construction because it is a great material for restoration of old buildings and also used for the exterior of the buildings. It is also being used widely for walls and ceilings. GFRC allow almost perfect replication of building terra-cotta and ornaments. It’s very low shrinkage allows molds to be made from existing structural ornamentation, then cast in GFRC to replicate the original designs. GFRC is lightweight compared to other traditional concrete which is very important for construction. It is highly durable and safe. Next, expensive equipment is not necessary for pouring or spraying GFRC .Fiberglass is inexpensive and corrosion-proof, but not as ductile as steel. It can only be
Fiberglass reinforced concrete doesn’t crack easily where it can be cut without chipping because it is sprayed on, the surface has no bugholes or voids. GFRC used for creative prefabricated architectural cladding. GFRC is an perfect material to use on a variety of roofing structures. It is easy to fix lightweight but tough and unaffected by environmental conditions. It can imitate traditional roofing materials such as slate, natural stone or clay products but unlike these materials it is neither heavy nor brittle. GFRC can be moulded into complex shapes for roofing accessories such as finials, ridges and chimneys. It is non-combustible with a high impact strength and can be used on all types of roof. Next, GFRC use in renovation. Thin lightweight panels are easy to fix and minimise the weight imposed on the existing structure. In addition,GFRC can provide best solutions in the construction of foundations and floors where in-situ concrete floors it can give economic benefits together with excellent appearance. On ground floor concrete slabs, during cold climate insulated GFRC can help in minimising heat loss from the
The most economical method for ground improvement is aggregate piers. Before aggregate piers were used, engineers had to replace the weak soil with an engineering fill in order to use shallow foundations, but in some cases (load is very high) they had to use deep foundations, which is much more expensive. By using aggregate piers, we can now use shallow foundations in marginal soil without having to replace it. By using compacted aggregate to create stiff pier element, aggregate piers help to increase the bearing capacity, liquefaction resistance, shear strength, rate of consolidation and it reduces settlement.
Nowadays, it will not be inept to inform that the universe is going over a construction boom. In truth, in the past few decades an entire affair of construction has altered dramatically like all other aspects of life. Currently, construction is no more just about keeping one brick above the other, but a diverse more than that. With the present scenario, the construction work encompasses all the aspects of construction like, performance, optimization, developing and designing. As an outcome, construction chemicals have become an essential part of the world construction industry. These chemicals are typically utilized to impart different properties into the layout.
The usage of concrete was explored by the Early Christian and Roman architects but fell out of use throughout the Middle Ages and Renaissance period. The material was only fully explored again in the later half of the 19th century but only for mundane purposes where the material was cheap, easy to work with, and versatile, but most importantly it’s fireproof characteristic. In 1870, the idea of reinforcing the concrete was born; steel rods were to be inserted to increase its strength. Taking this principle, Ernest Ransome (America) and Francois Hennebique (France) both developed frame systems. From this, open plan workspaces with large windows were created and it was proved to be well accommodated where fire had previously been a danger. Hennebique’s system used slim vertical posts, thin parallel beams on brackets and floor slabs; this resulted somewhat like a timber frame. Concrete was one of the most flexible materials and one with a least determining form. Concrete relied on its mould and the intelligence of its designer to give it aesthetic qualities for one to appreciate it. This became much more obvious when the architects of the last 19th century attempted to discover a style based on this material.
Major aerospace engineering bodies such as NASA soon realised the importance of this technology and scientists began to develop carbon fibre composites for use in aircraft and spacecraft. Currently, carbon fibre composites are some of the most widely used materials in the aerospace and aviation industry as one of strongest materials available, being five times the strength of steel. It is also a third of the weight of steel and therefore incredibly lightweight. A composite is defined as a material consisting of two or more individual constituents. These composites are made from carbon fibre fabric (the fibres woven together) which is permeated with epoxy resin at temperatures of around 125 degrees. The product is a carbon fiber sheet. This can then be shaped into a pattern and finally bonded with a structural adhesive7. The use of CFC’s is most prominent in modern military aircraft, where most external components such as wings, doors and rear fuselage sections are partially made using them. The aim of using this material is to reduce weig...
Even the most well-maintained roof covered in traditional roofing materials, will begin to degrade over time. They tend to become brittle, which causes them to crack and bubble. Even the smallest hole or crack in the roofing will allow water to make it's way under the roofing material where it causes structural damage. By contrast, GacoFlex remains permanently flexible, whether it is subjected to ponding water, heavy snow pack, full sun or weather extremes. It will never soften, bubble, or disintegrate, meaning your roof will remain watertight and intact for years to come.
Process of choosing waterproofing is very important in the step to build a building because it will give impact to the building in long term. The waterproofing membrane is considered to be most important component of the roofing system as it serves the main function of keeping water out of the building. But for agro central mall, they use waterproofing no membrane. During construction waterproofing is very important because to prevent excessive moisture from being trapped between the reinforced roof structure and the membrane.
...htly brown. Exterior products -- dense glass -- have a silicon treated core with a fiberglass mate front and back, used in carports and soffets. Dense Shield -- moisture resistant, silicon treated core, fiberglass mates front and back mostly used in bath areas and can be used for walls, floors, ceilings, counter tops, and counter tops, and is used like dura rock or cement board.
Cons • These shingles perform poorly in climates where temperatures change quickly. • Asphalt shingles are weaker than other architectural roof shingles and easily damaged by hail, high winds and falling tree limbs. An asphalt roof may need to be replaced before its expected useful life has expired. Fiberglass Shingles Fiberglass shingles are actually enhanced asphalt shingles. When added to the mix, fiberglass provides extra strength and stability to asphalt shingles, making them more resistant to storm damage.
Concrete also has its advantages. Concrete does not corrode, therefore concrete structures require less maintenance. Besides that, concrete has resistance to fire, therefore it is safer compare to the timber structure. Concrete has also resistance to cyclic loading.
Carbon-fiber-reinforced-polymer (CFRP) is a composite polymer made up of carbon fibers and a binding polymer. The binding polymer can be a thermoset resin or thermoplastic polymer(s). Examples of thermoplastic polymers that can bind with carbon fiber to make CFRP are polyester, nylon, or vinyl ester. A thermoset resin that can combine with the carbon fiber to make CFRP is epoxy. The combination of the carbon fibers and a thermoset resin or thermoplastic polymer producing CFRP results in a light weight fiber-reinforced plastic that is tremendously strong. Depending on the binding polymer, CFPRs have a wide range of applications and are used when a light weight material with high rigidity and strength are required.
Formwork has been in use since the beginning of concrete construction. Modern material such as steel, plastic, Aluminium and fiberglass are used in formwork.
Buildings consume a variety of materials in their construction. Green design reduces the dependence on resource intensive products and materials. Today, there are an increasing number of products available made from efficient, earth-friendly, or recycled materials. In a green building, consideration is also given to the construction process itself. Materials that minimize waste or can be recycled, help contribute to an efficient and environmentally sensitive construction process.
Sustainable buildings are becoming somewhat of a necessity in the world today. As the demand for green building develops, so does the demand for green building materials. Just as the old techniques and building materials seem to disappear in the assembly of things, they are now making a come back. Green building focuses on the efficiency of major resources like water and energy. As the cost for sustainable materials and products are on the decline, building green seems to be the most cost effective kind of design and construction. Looking specifically at green materials and their impact on the production of structures, it is evident that they are a prime choice for building material. The use of green materials should be promoted because they are better for the environment, more healthful for the consumer, and better for the economy.
Consequently covering materials are ones used to cover greenhouse structures that must permit for full light transmission. They can be rigid or flexible, double-walled or single-walled, smooth or corrugated.
Sustainable concrete materials and sustainable steel reinforcement have been introduced to civil engineers to get closer to the sustainable development. Sustainable buildings constructed with use of these materials have shown an increased service life and the final cost has been reduced due to them.