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Usage of corrugated steel fibers

The basic shape of corrugated steel fibers is similar to that of shear products, but the tensile strength of single fibers has been greatly improved, reaching more than 1100 Mpa, which is suitable for key projects and large areas of concrete crack resistance parts. Today, the corrugated steel fiber manufacturer, Longyu Steel Fiber, Suzhou, has a brief talk with you about the use of corrugated steel fibers.1. Doping amount: 0.5-2% volume, that is, 30-120 kg/m3 (or according to the actual situation).2. Material requirements: steel fiber reinforced concrete shall not use sea water or sea sand, and chloride salt shall be strictly prohibited.3. Mixing: The workability of steel fiber reinforced concrete can be determined by referring to the slump required for ordinary concrete in similar projects, and the mixing time can be appropriately prolonged to ensure the uniform dispersion of steel fiber.4. Maintenance: The construction and maintenance technology of concrete with fibers is identical to that of concrete without fibers.5. Safety in use: Proper attention should be paid to labor protection to prevent stabbing and splashing of eyes;

About SFRC

Steel Fibre Reinforced Concrete (SFRC) gives concrete its highperformance because the steel fibers are homogeneously distributed. Thus,contributing to considerable increase in load-bearing capacity, high durabilityand high impact resistance, and all this ensures a longer lifetime with lowmaintenance cost. Apart from a wide usage, the Steel Fibers are also used assprayed concrete (shotcreting), slope stabilization, pre-cast concreteproduction tunnel and mining shafts and underwater concrete reinforcement.Steel Fibres are also popularly used in manufacturing precast walls, overlays,manhole covers, piles & pillars.

Steel fiber reinforced concrete pavement is a kind of cement concrete pavement

Steel fiber reinforced concrete pavement is a kind of cement concrete pavement. The pavement is paved with concrete mixed with a certain amount of dispersive short steel fibers. The tensile strength of steel fiber reinforced concrete is much higher than that of plain concrete, and its compressive strength, fatigue resistance and crack resistance are also improved.

about PP Fibres

1.Can PP Fibres Be Used In Masonry Cement Mortar?Yes, however we would recommend that you use a 6mm long product. This is a much more suitable length of fibre to use with sand cement mixes.2.Can PP Fibres Be Used In Masonry Cement Mortar?Yes, however we would recommend that you use a 6mm long product. This is a much more suitable length of fibre to use with sand cement mixes.3.Can PP Fibres Be Used In Pavements?Yes, the inclusion of our fibres in this type of construction can only be beneficial and the fibres also help to protect the concrete from cycles of freezing and thawing.4.Can PP Fibres Be Used In Burial Vaults And Septic Tanks?Yes, because of the improvements in reducing water and chemical penetration.5.Can The PP Fibres Be Used In Coloured And Stamped (Patterned Concrete)?Yes, it is very beneficial due to the fact that the fibres reduce ugly plastic shrinkage cracks.6.Can The PP Fibres Be Used In Tilt Up Construction?Yes7.Can The PP Fibres Be Used In Coloured And Stamped (Patterned Concrete)?Yes, it is very beneficial due to the fact that the fibres reduce ugly plastic shrinkage cracks.8.Can PP Fibres Be Used In Marine Environments?Yes, the fibres have been used in large-scale projects around the coastlines in Europe and the fibres increase the toughness of the concrete.9.Can PP Fibres Be Used In Pre-Cast Concrete?Yes, the inclusion of the fibres will increase the toughness of the concrete and lead to less damage to the precast units during the stripping and movement of the units.10Can PP Fibres Be Used In Pumped Concrete?Yes the inclusion of fibres in the concrete for pumping will have no detrimental affect on the ability of the concrete to pump. In fact the inclusion of the fibres will make the mix less likely to segregate and will therefore improve the pumpability of the concrete. Likewise in shotcreting and gunite mixes the fibres will have no detrimental affect.11.Can PP Fibres Be Used In Elevated Decks?Yes there are no reasons not to do so.12.Can PP Fibres Be Used In Exposed Aggregates?Yes, however the fine fibres may also be more visible than in a normal concrete mix.13.Can PP Fibres Be Used In Extruded Concrete?Yes, it has been stated that the inclusion of fibres makes the concrete easier to extrude. The concrete also contains fewer tares and contains less plastic shrinkage cracks.14.Can PP Fibres Be Used As A Replacement For Primary Reinforcement?No. However in ground supported slabs the fibres can be used in place of crack control mesh provided that the mesh is not in the concrete for structural purposes. Also note that the bay sizes should be no greater than 6 by 6 metres and the ground should be well compacted and stable.15.Are PP Fibres The Same As Steel?No steel fibres provide the concrete with flexural and tensile properties and can be used in place of structural steel in the correct designs. Whilst fibres enhances durability making good concrete even better.16.Can Belmix Fibres Be Used In Bonded & Un-Bonded Toppings, Exterior Concrete, Vertical Walls ?The answer to all of these is yes.17.Do PP Fibres Reduce Plastic Settlement Cracking?Yes, the inclusion of our fibres makes the concrete more cohesive and also reduces the number of bleed channels within the matrix thus helping to reduce both bleed in the concrete and plastic settlement. Due to the above two mechanisms concrete containing our fibres will be more impermeable to ingress from aqueous solutions.18.Do PP Fibres Reduce Plastic Settlement Cracking?Yes, the inclusion of our fibres makes the concrete more cohesive and also reduces the number of bleed channels within the matrix thus helping to reduce both bleed in the concrete and plastic settlement. Due to the above two mechanisms concrete containing our fibres will be more impermeable to ingress from aqueous solutions.19.Do PP Fibres Reduce Plastic Settlement Cracking?Yes, the inclusion of our fibres makes the concrete more cohesive and also reduces the number of bleed channels within the matrix thus helping to reduce both bleed in the concrete and plastic settlement. Due to the above two mechanisms concrete containing our fibres will be more impermeable to ingress from aqueous solutions.20.Do PP Fibres Affect Abrasion Resistance?Yes, the fibre improves abrasion resistance of the concrete and this is a function of the reduced bleed characteristics of fibrin enhanced concrete. Due to less settlement the surface contains less of the finer weaker fine sand. Therefore abrasion resistance is increased.21.Do PP Fibres Affect Impact Resistance?Yes, the inclusion of fibres in concrete improves the ductility of the concrete matrix. The BBA tests show an improvement of 500% against the control mix.22.Do PP Fibres Affect Shatter Resistance Of Concrete?Yes, the inclusion of the fibres will improve the shatter resistance of concrete. Crushing cubes with and without fibres in them can easily see this. The fibres enhanced concrete will hold together whilst the plain concrete cube will just fall apart.23.Do PP Fibres Add Toughness To Hardened Concrete?Toughness is usually defined as the resistance of a sample of concrete to failure by impact, this being the case then the answer is most definitely yes.24.Do PP Affect Dusting Of Concrete?The inclusion of the fibres will help reduce dusting due to the fact that the bleed of the concrete will be reduced thus reducing the amount of finer materials at the surface. Whilst an improvement does occur there can be no substitute for proper curing.25.Do PP Fibres Affect Crazing Of Concrete?The over trowelling of the concrete, which will bring to the surface a highly cementitious material that is susceptible to a high degree of shrinkage, can cause crazing. The use of the fibres will therefore reduce the crazing of the concrete.26.Do PP Fibres Affect Scaling And Blistering Of Concrete?Blistering of the concrete is caused where the surface of the concrete is finished too quickly whilst bleed water is still coming up from the matrix. This bleed water will be trapped beneath the finished layer and this forms a weak spot beneath the surface, which will blister when it starts to be trafficked. Scaling usually occurs in uncured concrete. The inclusion of the Fibrin will not have any affect on either of the above properties.27.Do PP Fibres Affect Or Cause Curling Of Concrete Slabs?The fibres by controlling the bleed and settlement of the concrete will help to reduce the potential for curling by helping to reduce the moisture gradient in the concrete which will help to reduce one of the factors that causes curling.28.Do The Use Of PP Fibres Require Mix Design Changes?The inclusion of the fibres will increase the yield of the concrete mix by about 1% so it is possible to reduce the coarse and fine aggregates in the mix by 1% and still maintain the yield. However, most companies do not make any alterations to the mix designs.

When should I select Insul Cast instead?

Insul Cast is a backup insulating product that can be applied under the hearth, behind the firebox, or over the dome in a fire pit or bake oven. It is ideal as an insulator for bread and pizza ovens, and should be applied with a minimum thickness of 2”. You will need 6 lbs. per square foot when applied 2” thick.

When should I use Insul Stick?

Insul Stick is also a castable restoration product but is more specifically used for parging over the firebrick in the smoke chamber or for exterior installations. It provides insulating value and strength, and can also be used to seal masonry wall penetrations. It can be cast, parged, or troweled and should be applied ¼” to ½” thick. You will need 2.5 lbs. per square foot when applied ½” thick. Insul Stick is packaged in 5 and 20 lb. pails.

When should I use Heat Cast 40 and how should it be applied?

Heat Cast 40 is designed for casting shapes or is used anywhere instead of firebrick. It can also be used as a hearth in a heat chamber (e.g., bake ovens, fire pits, fire boxes). You will need 20 lbs. per square foot when applied 2” thick. There is 40 lb.in each bag.

How thick should Heat Stop castable products (Insul Stick, Insul Cast, and Heat Cast 40) be applied?

Insul Stick is usually applied as a parged product ¼” to ½” thick. It may be cast thicker. Insul Cast is typically cast 2” thick under the hearth, behind the firebox or over the oven dome. It may be cast thicker. Heat Cast 40 is typically cast 2” thick for replacement of firebrick in a firebox smoke chamber or oven. It may also be cast thicker.

How thick should the joints be when applying Heat Stop refractory mortar products?

A joint thickness of 1/16” to 1/8” is recommended for all Heat Stop refractory mortar products. If a thicker joint is required, we recommend the use of a dry mix - Heat Stop II or Heat Stop 50. For all of the refractory mortar products (Heat Stop Premix, Heat Stop II, Domestic Fireplace Mortar or Heat Stop 50), you will need approximately 50 lbs. of product to lay up 100 firebrick.

Which of your Heat Stop products may be colored?

Heat Stop II and Heat Stop 50 can be colored just like any mortar – just follow the color manufacturer’s instructions. Heat Cast 40, Insul Stick and Insul Cast can also be colored.

Where are Heat Stop refractory products available?

The family of Heat Stop products can be found at many masonry supply yards or concrete block dealers across the USA. Heat Stop products are also available through our convenient authorized online dealer, www.MyBuildingSupplyStore.com.

What ASTM specifications are called for by local and nation

Building codes require refractory products that meet ASTM C-199 (medium duty) for fireplace and chimney construction. All Heat Stop products (including the castable products Insul Stick, Insul Cast and Heat Cast 40) meet or exceed this ASTM C-199 (medium duty) requirement. Firebrick must meet the ASTM C-27 requirement, and clay flue lining must meet the ASTM C-315 and ASTM C-1283 requirements. ASTM C-105 is a discontinued specification for fireclay and should NOT be used in fireplace and chimney construction. Fireclay mixes with regular mortar do not meet current building codes.

Which of your products is the best choice as joint material for the installation ?

Heat Stop II and Heat Stop 50 are the best refractory mortar products for installing clay flue lining and firebrick because they are completely non-water soluble in service after the initial set. They have an indefinite shelf life, and excellent drying characteristics no matter the humidity. These products are specified by NFPA-211 (National Fire Protection Association), in addition to meeting all local, regional and national building codes.

Which Heat Stop product is most economical?

Heat Stop-50, the dry mix in the 50 lb. bag is the best value. A 50 lb. bag when mixed with water yields approximately 60 lbs. of mortar.