Fiberglass Rebar: 2012

Friday, April 27, 2012

High Performance Fiber Reinforced Concrete In Earthquake-resistant Construction

The advantages of using work-hardening, high-performance fiber reinforced concrete (HPFRC) in critical areas of earthquake resistant structures are increasingly recognized. Due to their ductile behavior HPFRCs is particularly attractive for use in areas where a large inelastic deformation capacity is needed to withstand the demands caused by a severe earthquake. Test results showed that HPFRCs serve as a substitute for specific details of seismic reinforcement by providing additional shear strength and confinement, which could lead to important simplifications in the construction of earthquake resistant structures.

In 1987, Naaman proposes to classify the fiber reinforced concrete is based on the tensile behavior after cracking (Fig. 1). When the rate of hardening behavior has been observed, the mixture is classified as high-performance fiber reinforced cement (HPFRC). When the strain softening behavior is observed, the mixture is classified as a simple fiber reinforced concrete (FRC).

After the first crack occurs HPFRC subjected to direct tension, the fibers bridge the crack to carry a greater load, thus increasing the composite cracking. This cracking process, which eventually leads to a dense mass of fine cracks, damage continues to locate the (substantial removal of the fiber) is one or a few cracks, traction typically between 0.5 and 3%. FRC on a regular basis, on the other hand, because the fibers can not carry more load after cracking, the location of damage will start as soon as the first structural cracking occurs.

The fibers also increase the compression behavior of concrete, especially by increasing the voltage on capacity. HPFRCs has shown to exhibit a very similar behavior in the confined concrete, load capacity exceeding 1%. This suggests that the confinement reinforcement relaxations are possible when using HPFRCs than concrete.

For more information : http://www.frpdistributors.com

Fiber Reinforced Polymer (FRP) Rebar– Technology

Recently, composite materials made from fibers embedded in a polymer resin, also known as fiber reinforced polymers are an alternative to steel reinforcement for concrete structures. Fiber reinforced polymer aramid (AFRP), carbon fiber reinforced polymer (CFRP) and glass fiber reinforced polymer (FRP) bars are the products commercially available for the construction industry. They have been proposed for use instead of steel or prestressed steel cables nonprestressed or prestressed concrete (ACI 440R 2006). The problems of steel corrosion is avoided with the use of FRP because fiber reinforced non-metallic materials are non-corrosive. Furthermore, FRP materials have several properties including high tensile strength which makes them suitable for use as structural reinforcement.

In addition, codes and design provisions have been recently developed guidance for the use of FRP bars in concrete structures for bridges and buildings (ACI 440H 2000, CSA 2000, ISIS-Canada, 2000).

The bond properties are responsible for transferring the load of concrete to strengthen and develop the necessary restraint in strengthening the balance, especially when the concrete is cracked. The service limits in FRP reinforced concrete elements, such as deflection, crack width and crack spacing is directly influenced by the properties of link reinforcement in concrete. Fiber reinforced polymer bars are anisotropic materials. Factors such as the type and amount of fiber and resin, fiber orientation and quality control during the production process plays a major role in the mechanical properties. If rebar carbon FRP (CFRP bar Isorod Pultrall, ADS Composites Group), when comparing a steel rod of 11.3 mm reinforced carbon fiber with a diameter similar about 9.5 mm, the results show that the tensile stress-strain curves of the CFRP bar is linear up to fracture (All FRP bars is linear elastic to failure).

The tensile strength of at least 1500 MPa, three times with reinforcing steel. The elastic modulus of the CFRP bar is 128 GPa, about 65% that of steel. CFRP bar set close to the bond strength to concrete even as a steel bar diameter 11.3 mm. (Benmokrane et al. 2001) As for glass FRP bars (GFRP bar ASLAN 100 Hughes Brothers, Inc.), tensile strength of 9 mm GFRP bar is 760 MPa and a modulus of elasticity is 40.8 GPa , much lower than for steel.

For more information : http://www.frpdistributors.com

What Is Fiber Reinforced Polymer (FRP) Rebar?

Reinforced concrete is a very common building material for construction of facilities and structures. Complementing the strength of concrete in tension is very limited, the construction of steel structure was a cost effective solution. However, insufficient concrete cover, poor design or workmanship, and the presence of large amounts of aggressive agents, including all environmental factors can lead to cracking of concrete and corrosion of steel bars. For example, the United States, almost 40% of bridges are structurally deficient or functionally obsolete, and the percentage is increasing, according to the Federal Highway Administration (Griffiths 2000) For many years there have been many studies on this subject the corrosion, and the interest of FRP (Fiber Reinforced Polymer) has recently emerged as a potential substitute for steel. A careful examination of the potential of FRP reinforcing bars to meet cost and performance may propose appropriate solutions.

The benefits

* Waterproof to chloride ions and chemical attack

* Tensile strength than steel

* 1/4th weight of steel reinforcement

* Transparent to magnetic fields and radio frequency

* Electrically and thermally conductive

Based on the above characteristics, FRP bars appears to be a promising alternative to steel reinforcement in concrete structures such as marine structures, parking structures, bridges, roads in extreme environments, and structures are very sensitive to magnetic fields and corrosion.

For more information : http://www.frpdistributors.com

The Fiber Reinforced Concrete

Reinforced concrete with steel fibers or synthetic fiber is known to reinforced concrete. Fiber reinforced concrete made an impression across the construction sector as being stronger, more malleable and more reliable than the cement alone. Fiber Reinforced Concrete has many uses and new applications are developing rapidly.

Fibre reinforced concrete is concrete that is mixed with synthetic fibers or steel. This concrete may also consist of steel and synthetic fibers in a mixture. The construction industry prefers fiber reinforced concrete on the regular strength and durability.

Fiber reinforced concrete is also known for its ability to control fire. Steel fibers in concrete and synthetics are less likely to break and crack when exposed to heat. There are currently several ongoing studies are currently evaluating the effectiveness of fires fiber reinforced concrete and extreme.

The most common use of fiber reinforced concrete is to make the factory floor. Fiber reinforced concrete is known to be able to withstand cold and heat, without cracking. Thus, fiber reinforced concrete is a viable alternative to the factory, because it takes the heat and pressure of the big machines.

Engineers and scientists are looking for fiber and to strengthen and improve the properties of concrete. They found an additive that makes the fiber concrete lighter and more resistant to cracking of the concrete alone. Additives are also working with natural fibers such as cellulose, which is trying to create a more environmentally friendly concrete.

For more information : http://www.frpdistributors.com

Friday, March 16, 2012

Why To Seek the services of Rebar Detailer For Rebar Style And Strengthening Detailing?

Accurate Rebar design and information for encouragement of precious metal or tangible framework performs part in increasing the requirements of safety for any building development tasks. The Rebar detailer makes bar twisting plans, store paintings and rebar measurements for effective encouragement. Rebar design is a time-consuming and complicated procedure.

Improving the interaction circulation among different investments engaged in the rebar design venture allows help the look procedure and decrease the amount of imitation. This in turn allows mistakes and illustrating time with benefits in price.

Structural designs professionals generally delegate rebar design paintings work to a subcontractor or team of rebar detailers. The detailers are accountable for offering complete linens of computations, store paintings and common design paintings for generation as per the requirements. The detailer is accountable to make necessary changes in the paintings until he gets last acceptance from professionals.

Typically for any venture, encouragement paintings may be improved many times as a result of human mistake or a change in design recommended by one of the investments engaged in the venture. This procedure of changing paintings, play a crucial part in turn around some time to price of development. The rebar detailer can save modification time by paying off for time used by the advisor professional in the of last paintings. Industry best methods recommend that information paintings should be came back for acceptance and evaluation to the advisor professional.

Computer based Rebar information techniques help Architectural professionals, detailers and fabricators improve home loan approvals and co-ordinate on the same single foundation. The lack of an decided information return framework makes it difficult for them to return twisting plans and other information with convenience. Modern CAD techniques such as AutoCAD and RebarCAD eliminates this restrictions by enabling the user to turn venture information from hand-drawn images to DWG, DWF or CNC data files within presses of computer mouse. Once information is fed to twisting machine it generates reasonably precise rebar, but the first one or two cafes are taken as examples for quality check.

FRP Distributors Inc.

14540 – 115 Avenue

Edmonton, Alberta, Canada T5M 3B9

http://www.frpdistributors.com

Toll Free: 1-877-455-5105

Main Phone: 1-780-455-5105

Main Fax: 1-780-455-5140

Understanding Of Development Paintings And Details

Construction Paintings are extremely essential for proper style development and commissioning of developing and city components. Development Paintings must be attracted to range by the drafters and shall present all the necessary information for conformity with regional developing requirements. For residential construction it may contain information of construction materials, place of maintaining surfaces and areas form of stream used, relationships between ground and interior/exterior surfaces and others.

All construction drawings shall contain following details:

· Site Strategy drawings: Reveals place of construction website with dimensions

· Floor Strategy drawings: Reveals place and styles of all windows, doorways, categories, maintaining surfaces, stream, content, steps and others.

· Foundation Details: Reveals Ground measurements, RCC information, Strain structure styles, Piece information, etc.

· Structural Drawings: Includes construction information for developing mounting, footing, heap groundwork, fireplace, steps and other elements of style along with their shop drawings.

· Roof Framing Details: Reveals ceiling truss measurements, kind, styles and places.

· Mechanical Drawings: Reveals dimension and form of air conditioning or duct techniques.

· Electrical Drawings: Reveals place and dimension conduits, devices, lighting, intruder alerts and others electric powered techniques.

· Plumbing Drawings: Reveals information of pipes, water flow and drainage systems, water submission blueprints, etc.

Building Layout should contain:

· Floor measurements (interior and exterior)

· Columns, supports and ground joists locations

· Doors/windows/partition sizes

· Doors/windows/partition locations

· 2-3 storey identification

Roof mounting plan should contain:

· Framing style plans/layout

· Spacing between Roof architectural members

· Geometry of architectural members

· Roof member relationship diagrams

· Truss technological innovation drawings

· Connection details

Construction information should contain:

· Concrete wall and wooden relationship sections

· Concrete patio and wooden shape relationship sections

· Roof sections

· Related architectural members

Above mentioned drawings may not all comprehensive of the code requirements for given construction. Additional drawings and requirements may be needed by the regional developing office to accept recommended developing project. Post any of your inquiries at info@frpdistributors.com

FRP Distributors Inc.

14540 – 115 Avenue

Edmonton, Alberta, Canada T5M 3B9

http://www.frpdistributors.com

Toll Free: 1-877-455-5105

Main Phone: 1-780-455-5105

Main Fax: 1-780-455-5140

Save Time And Cost Using Revit Developing Style & Revit Modeling Tools

Revit Style Components as well as Architectures are regarded as the most convenient and greatly used CAD resources in the development business market. The biggest advantage associated with it is a single style offered by it for a number of areas, real illustrating evaluation, accurate structural as well as structural information plus finish assistance for a wide range of illustrating types.

One Model for both Structural Research as well as Structural Drawings

Using Revit Versions the developer is able to incorporate the purpose style of the framework with a absolutely thorough 3D style which is editable. The purpose style is used for illustrating generation as well as control, plus the thorough style is used for structural analysis. Any design variations during case study stage are robotically demonstrated in the purpose style as well as in the development paintings of Revit building custom modeling rendering.

Association between 3D Model, Opinions and Particulars:

With Revit Developing Style you get full display from the main development information source of each 2D/3D perspective, illustrating, particular, and strategy. Any variations made in the details, are demonstrated by the component and those changes across the style and up-dates appropriate programs, programs, areas and levels. This function almost allows to get rid of handling mistakes, increase in common certification correctness as well as in the efficiency.

Efficient Managing of Construction Documents

The conventional CAD techniques that were time-consuming, recurring and done by guide creating are automated with the help of Revit Style. Revit building design also allows you in strategy adjustment, level or area as well as to find specifics instantly. Thus you may get your paintings absolutely matched and ready to use all the while.

Precise Structural Particulars

You can generate framework information from the distributed 3D style, from start or transfer them through conventional CAD information files in Revit Style CAD creating resources. It is associated with creating resources, allocated essentially for precious metal and tough tangible specifics like: welding signs, rebar, tangible strengthening, and core products, etc.

Supportive for a Various Drawing Templates:

Revit Versions is encouraging of market well-known layouts like: CNC, DGN, DXF and DWG to move as well as transfer your venture specifics and carry together with information of any service provider, professional or advisor. It is also encouraging for conventional work-flows where structural custom modeling rendering begins with DWG information files offered by the developer with the help of AutoCAD software.

FRP Distributors Inc.

14540 – 115 Avenue

Edmonton, Alberta, Canada T5M 3B9

http://www.frpdistributors.com

Toll Free: 1-877-455-5105

Main Phone: 1-780-455-5105

Main Fax: 1-780-455-5140

Benefits Of Rebar Detail For Development Firms

Rebar detailing is known as common precious metal bar detailing mainly used in tough tangible components. For better anchoring in tangible framework it performs part. Currently, all nations are searching for constant infrastructures to fight against such problems. To fulfill this purpose all the precious metal members used in tangible are must be placed with highest possible reliability and this can be carried out by rebar detailing.

Steel construction got vast extension and getting instant growth so it is necessary to comprehend the developing balance problem for all installers, installers and detailers. It is a vital and most complicated procedure of any kind structures so mistake can make big catastrophe. To avoid mistakes in rebar detailing, precious metal industry has presented some worldwide requirements and requirements that must be followed by all companies which are offering solutions in precious metal sectors.

All the solutions services are comprehend this problem and for those professional detailers must necessary. Significantly all the companies are changing their team of detailers and making them aware with newest technological innovation. A Rebar Detailer is a person who produces paintings for bar twisting and precious metal factor styles for allocated components. It is widely used in different form of components like personal, commercial, institutional and business. In the overdue it was tough to guarantee about huge components balance but after using detailing procedure it guarantees developing balance.

Rebar Detail comprises bar twisting, precious metal rebar styles and detailing paintings. All stages have their own obligations. Bar twisting is used to routine various framework elements in proper position like supports, content, ground, girders, surfaces and etc. it helps to assess necessary content requirements and cost evaluation. In other term it prevents waste of content for any developing kind. Detail paintings explain each member's requirements. These kinds of paintings rewarding different terms described as below.

· Maintaining Walls

· Concrete combined and Piece Details

The Status And Challenges Of FRP Reinforcing Bars

State

The first commercial use of FRP composite armor is twenty years old. These initial applications were non-magnetic or radio frequency transparent confirmation of magnetic resonance imaging (MRI), medical equipment and specialized military applications. FRP composite armor has become the industry standard for this application, replacing the stainless steel in recent years. Interesting parallel in Europe and Japan have helped to make FRP composite reinforcement of international study.

In addition, the Manufacturers Council of FRP rebar (President: Doug Gremel) was created by those vendors placed in the "contact points" with the aim of promoting quality assurance and other industry standards among manufacturers .

Canadian Highway Bridge Competition Code, CSA - S6-06 now contains provisions which allow the use of GFRP rebar. Thus, a series of bridges built in Canada, more routine. The largest of these projects so far is "Floodway Bridge" near Winnipeg. This is an important bridge for all indicators, but more for the fact that it was built "without the steel bridge," The concept of using all GFFRP bars in concrete above the bar.

Obstacles

The cost of FRP reinforcing bars in ft / $ is usually greater than conventional steel reinforcement. Carbon FRP is generally more expensive than the GFRP. Click here to find a detailed catalog of the cost of FRP rebar. Note that you cannot make a direct replacement of the steel bars on the principles of the design guide FRP appropriate. In general, the cost impact of FRP bars in the bridge deck is just for the increased cost of the bridge with something on the order of 2 to 5% nowadays. Therefore, using FRP bars and potentially get many more years of service cannot be an expensive alternative.

* The price is $ 3 to 4/lb (including approx. 1/lb $ cost of raw materials) in the case of Glass FRP and carbon FRP bar is generally more expensive. (See cost epoxy coated rebar $ 0.32/lb)

3R-04 issued to support the ACI 440 design wizards, with the understanding that in time, these test methods will be the transition to more formal body ASTM. The document is available from ACI provides engineering and practicing with the information needed to implement these new FRP bars. This transition is occurring and documents, such as ASTM D7205 now describe test methods for determining the tensile properties, modulus and strain of FRP bars. Several other test methods are also being printed in the format ASTM consensus review.

* Due to the lack of established standards, a wide variety of FRP bars are now marketed, ranging from simple plain bars bar tried to improve the characteristics of bonds. Therefore, a better understanding of the mechanical properties and bond behavior is necessary for a rational approach for the design of FRP-reinforced structures.

* Field of the curves are not allowed, and not welded, so that differences in the operations of carbon steel rebar construction should be applied in the design stage.

* Lack of familiarity of engineers can cause a decrease in productivity of exploration.

FRP Distributors Inc.

14540 – 115 Avenue

Edmonton, Alberta, Canada T5M 3B9

http://www.frpdistributors.com

Toll Free: 1-877-455-5105

Main Phone: 1-780-455-5105

Main Fax: 1-780-455-5140

What is The Rock Rebar

The Rock Rebar

Rock reinforcement has been developed especially for harsh environments, such as dams and road bridges. It is made of volcanic rock called basalt. Magma in the center of the Earth is basalt. Does not corrode. Basalt rod is made of basalt continuous filament and epoxy polymers. Adhesion to concrete is mainly an area of sand, but there is a spiral "thread." Basalt filaments are made by the fusion of crushed stone of volcanic basalt with a mixture of specific minerals to 1700 degrees Celsius for 6 hours. The material is extracted from platinum rings for the warm white special fiber cools. Fresh fibers in hexagonal channels may results in an elastic structure significantly stronger than steel or fiberglass. The Rock reinforcement fiber consists of 80% and 20% resin. Basalt is nontoxic and inert. The production process generates no waste on the environment and is not toxic for use or recycling.

He did not force loose in a fire situation the house (it can take 600 degrees C quite happily). It is also naturally resistant to UV exposure.

The tensile strength of continuous basalt fiber is about twice as E-glass fibers and the modulus of elasticity is approximately 15-30% higher. Basalt fibers in an amorphous state have a higher chemical stability of glass fibers. When exposed to water at 70degrees C (158 "F), basalt fibers retain their strength of 1,200 hours, while the glass fibers that make 200 hours.

Roca frame is about 2.5 times stronger (tensile) steel bars and 60 series of the same diameter. The coefficient of thermal expansion is very similar to concrete (when the steel is very different). Roca frame is approximately one third the weight of steel and since it is 2.5 times stronger than steel and its strength to weight ratio is 7.5 times better.

Rock and rebar has a strong power, and drew very little. It has a very low modulus of elasticity than steel. If the subject is beyond spec, then it will break rather than stretch. Positioning the plate design needs to do this. The structural design is considered as "tensile modulus". Proper structural design, brushed steel does not have anywhere near the force required to break it.

FRP Distributors Inc.

14540 – 115 Avenue

Edmonton, Alberta, Canada T5M 3B9

http://www.frpdistributors.com

Toll Free: 1-877-455-5105

Main Phone: 1-780-455-5105

Main Fax: 1-780-455-5140

About The Alternative Rebar

The Alternative Rebar

Reinforcing steel is a steel wire rod used to reinforce concrete slabs. The product is positioned below the surface before the cement to smooth the surface. Reinforcing steel is extremely expensive, but can corrode over time if exposed. All of cement structure, regardless of size, must be strengthened to be stable. Alternatives to the standard frame include the replacement of plastic, corrosion of reinforcing steel and the direct use of alternatives.

Plastic options

Fiber reinforced plastic (FRP) are a relatively new product. Technical information on the classic product, but the armor is made of steel industries plastic composite and plastic using a fiber different and more power and flexibility of the product. The use of plastics and fibers to help prevent corrosion damage occurs because of the mild steel and concrete halls around the country. Costs are slightly higher, but the long-term benefits of promoting a more stable and durable construction.

Corrosion-resistant steel

Steel is stronger and more robust than most other replacement options rebar. The disadvantage of steel is the chemical reaction with salts in the soil and concrete. The resulting corrosion reduces the quality of the concrete slab. Reinforcing steel in concrete can thin panels, but corrosion makes thinner plaques more prone to cracking and damage. Modern technology has developed steel alloy that combines the strength of steel with high resistance to corrosion or rust. Stainless Steel offers this level of protection, but it was prohibitively expensive for use as concrete reinforcement.

Other options

Metal grid ranges from chicken wire fencing. Each wire grid that you can have around can be used in significant support from the concrete. Treated metal fencing works well as a reinforcement for the concrete tiles of small size. Aggregates are stones and rocks are used as filler material in the concrete slab. Instead of blindly dumping stones in the mold of cement and then pour the concrete on top, adding large pieces of stones or pebbles are mixed before pouring the concrete allows for greater stability in the long run.

FRP Distributors Inc.

14540 – 115 Avenue

Edmonton, Alberta, Canada T5M 3B9

http://www.frpdistributors.com

Toll Free: 1-877-455-5105

Main Phone: 1-780-455-5105

Main Fax: 1-780-455-5140

The Applications of HPFRC Applications for Earthquake

HPFRC Applications Of Earthquake

Tight and well detailed transverse reinforcement provides a stable mechanism for the shear strength and confinement of concrete and longitudinal bars by moving chargeback’s. Containment, in turn, increases the toughness of concrete, controls crack growth and helps maintain the integrity of the organ. Appropriate use of transverse reinforcement details are particularly critical in the design elements or areas exposed to moderate to high levels of shear and / or large inelastic rotations. Examples include coupling beams, beam-column connections, and the plastic hinge regions of flexural members. Observations of experimental research, as well as in the post-earthquake evaluations showed that the use of complete transverse reinforcement is carefully detailed to ensure a truly effective structural behavior during a major earthquake.

Designed for members as part of the lateral force resistance in areas of high seismicity, ACI 318 requires a significant amount of transverse reinforcement and shear strength for containment. Using these HPFRC members increases the shear strength and variety of confinement, and therefore has the potential to significantly reduce the amount of transverse reinforcement.

Take the case of reinforced concrete (RC) coupling beams in earthquake coupled wall systems. To ensure shear strength and deformation capacity of coupling beams, the cross, severely limits the diagonal reinforcement cages are required by the code, as shown in Figure 3. Using the simplifications HPFRC, important in the transverse reinforcement detailing of key members of earthquake resistant structures can be achieved without compromising the structural behavior.

Coupling beams

Coupling beams in structural wall systems play a major role in system behavior during earthquakes. These beams are under great stress requirements of rotation and shear during a severe earthquake, which requires intricate details and transverse reinforcement diagonally to meet the seismic requirements expected (Figure 3).

Since the introduction of the union of diagonal bracing on the upper entrepreneurs ACI noted the difficulties in construction. In response to a demand for design without disturbing the beam coupling Canbolat et al. (2005) studied the use of HPFRC as a way to significantly reduce the cross brace reinforcement around the diagonal, while the increased cutting capacity. The result was a new concept of prefabricated beams HPFRC coupling (Figure 4) that reduces the amount of diagonal reinforcement and, more importantly, eliminates the transverse reinforcement necessary to support the diagonal and confine the concrete. This design allows the placement of the diagonal bracing in a single layer, which also reduces the width of the beam coupling.

FRP Distributors Inc.

14540 – 115 Avenue

Edmonton, Alberta, Canada T5M 3B9

http://www.frpdistributors.com

Toll Free: 1-877-455-5105

Main Phone: 1-780-455-5105

Main Fax: 1-780-455-5140