Key advantages of using Reinforcement Mesh - Neumann Steel

What is Steel Reinforcing Mesh?

Steel reinforcing mesh is a type of material used to strengthen construction projects such as concrete walls and floors. It is made of steel wires that are woven into a mesh-like pattern and then welded together to form a strong and durable reinforcement mesh structure. 

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Steel reinforcing mesh is often used in concrete slabs, walls and foundations, providing structural stability and allowing concrete to adhere to and strengthen the underlying structural elements. Steel reinforcing mesh is often used in projects that require extra strength, such as earthquake-prone areas and high-traffic areas. It is also considered to be the most cost-effective type of material for reinforcing concrete structures.

Advantages of using Reinforcement Mesh

Waterproofing

Steel reinforcing mesh is composed of small pieces of steel mesh, which are then welded together to form a strong and durable structure. Its strength and durability make it ideal for use in areas with high moisture and other extreme weather conditions.This type of mesh is popular due to its durability, as it can endure extreme conditions such as heavy traffic, corrosive substances, and fire. The steel mesh reinforcement also works to reinforce concrete by assisting in distributing loads evenly and binding the components of the concrete together. The installation process is relatively simple and can be achieved quickly and efficiently, resulting in minimal disruption of the building’s environment.

Suitable for pools

Steel reinforcing mesh is the perfect choice for creating a pool in any shape and style. It is an incredibly versatile material that can easily be shaped and cut to meet whatever design requirements you have. The strength of the steel mesh allows for the use of thinner walls that provide more design options and a sturdier overall structure when filled with concrete or other materials. Best of all, the steel reinforcement mesh is highly durable and can withstand even the harshest of weather conditions and pool chemicals.

Reliable

Steel reinforcing mesh is a reliable material for making concrete structures more robust and reliable, as it provides reinforcement and additional strength. It is often used in the construction of roads and bridges, as well as other infrastructure, due to its lightweight nature and ease of installation. It is used in residential construction as well, often in slabs and footings.

As its name suggests, the steel mesh reinforcement provides a framework for the concrete to bond to and become stronger. The mesh also helps to spread the load of the construction over a greater area, making it a more reliable and cost-effective building solution. Additionally, it strengthens the concrete, making it less prone to cracking or failure over time.

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Provides a strong base

Steel reinforcing mesh is a very important part of setting a strong base for a concrete foundation. It helps to create a uniform and secure support for the concrete, which will be able to better handle the weight of whatever it is supporting. The mesh needs to be properly set so that the concrete can settle and take the shape it needs to support the load it is facing. If the mesh is not set correctly, the foundation can become unstable and can potentially lead to collapse.
Reinforcing mesh lapping can be used to handle high loads and forces, making this material great for use in structures such as driveways and sidewalks. It also has benefits such as being cheaper than other materials, long-lasting, and corrosion-resistant which makes it a great choice for any construction project. 

Provides protection

Concrete reinforcing mesh is a great way to protect the structural integrity of any building. The mesh provides support and strength, making it an invaluable part of any structure.
Furthermore, it can be used to help protect against environmental elements, such as heavy winds or storms, as it will help keep the structure intact and stable. Additionally, it can also be used to reinforce existing concrete structures, providing greater protection against the elements. Reinforcement mesh can be used for a variety of applications, from foundations to walls and bridges.

Suitable for heavier weights

Steel reinforcing mesh is a critical component of any concrete structure; it creates a strong foundation and provides stability. Without it, the concrete layering is structurally weak and unable to bear the weight of what it is intended to support. The mesh, which is made of metal wires woven together, is laid down before the pouring of concrete and ensures that the concrete will be held in place and remain solid. The mesh also provides additional tensile strength to the concrete, ensuring that it will remain durable and strong despite potential wear and tear.

Cost-effective

Concrete reinforcing mesh is an economical and versatile solution for many construction projects. It provides a strong foundation and a uniform, reliable structure. The mesh helps to distribute loads evenly and resist cracking in the concrete surface, ensuring long-term structural integrity. Additionally, the concrete reinforcing mesh is easy to install and can be used on both horizontal and vertical surfaces.

Conclusion

Steel reinforcing mesh is a type of material used to strengthen construction projects such as concrete walls and floors. The steel bars are connected with mild steel wire and the mesh is then cut into sections to suit the specific application. 

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The primary methods to prevent early age cracking are concrete quality, finishing, and curing. The primary method to control longer term cracking is subgrade preparation. For heavily loaded slabs, increased thickness and discrete reinforcement are the best controls.

The use of fibers is limited to non-structural purposes, with few exceptions. This is primarily because the distribution and orientation of fibers is not assured. Distributed fibers help reduce crack width by encouraging development of multiple, small cracks, or in some cases, helping to improve the properties of concrete which reduce cracking. Once cracks start to grow, they are controlled by the modulus and area of fibers and reinforcement crossing the cracks. The modulus of plastic fibers is far below that of steel (- ksi for plastic v 29,000 ksi for steel.) The use of discrete (conventional) reinforcement assures that crack width is controlled once they start to grow. In slabs, this is usually relatively less important, but we have been seeing quite a few large companies move back to conventionally reinforced slabs after finding that fiber and unreinforced slabs did not perform well enough. Some slabs where poor performance was seen were well prepared and cracking was the result of loading and/or restraint, and the lack of reinforcement allowed wider crack propagation and/or vertical faulting.

In reinforcing an indoor slab, small, closely-spaced bar or wire will generally control cracks better than larger, widely-spaced reinforcement. Having reinforcement closer to a surface will restrain cracks on that surface better.

State of the practice for design of slabs is provided in ACI 360:

Construction practices are covered by ACI Committee 302:
This is due for an update, and the committee is now doing that. hokie66....
TXstructural....

EXACTLY!!

Fiber is an enhancement to the concrete mix....it is not reinforcement
It increases both the flexural (good) and compressive strength (not so much) (steel fiber only...polypropylene is worthless...as noted by hokie66)

I spent about 10 years on the ACI Committee for fiber concrete. It was a constant effort trying to keep the BS out....fiber provides some help, but it does not replace reinforcement and its crack limiting capabilities are limited as well.

The most significant effect that I've seen with fibers (steel fibers, again), is a reasonable increase in the modulus of rupture. Thanks Folks,

Seems to be a hotly debated topic.

The application I am considering is for a sand & aggregate storage shed (quarry). The floor (on grade) will be subject to loads from plant and materials. My approach is to design a floor slab which is suitable for use and to simplify its construction as much as possible.

Therefore, I am considering a deep slab (200mm / 8") with 1 no. layer A252 mesh (bottom) with fibre mesh reinforcement within the concrete mix. This will allow me to increase control joint spacings and allow for larger pours. The slab will be laid on graded hardcore well compacted in 9" layers. The slab does not need to be a super flat floor nor is the application the interiro of a 5* hotel, with a tiled finish, therefore, it does not need to be over-designed in terms of crack control. Primary objective is functionality & durability.

The viewpoints above are all valid and informative, many thanks.



murdydrum
chartered engineer
Depending on the soil type, an 8" slab for moderate loading should be OK... you can check the design. A good high strength concrete, low slump, sawcut into proper sizes at the right time and curing should all be used. I'd probably use regular reinforcing steel properly chaired and not WWM/WWF. I'd skip the fibres completely, steel and/or polypropylene. The former should be used if there is heavy equipment moving on the slab. In addition to the rust noted by MM, they are really difficult to work with.

Dik I stick by my recommendation to use steel fibers, based on the desire to minimize the need for crack control joints in an industrial slab where they're storing sand and aggregate. The slab will be subject to heavy abuse, both from the product itself, and it's likely that front end loaders will be used... they'll tear up the joints! The use of steel fibers allows larger slab areas to be poured without joints.

For normal industrial floors, I'm all for reinforcing bars (mesh is a joke), but you generally cannot stretch the joint spacing with reinforcing, and it does nothing for durability and abrasion resistance. Steel reinforcing is normally placed in the upper 1/3 of the slab to control cracking, rather than being used for bending strength, so it generally doesn't help you there. Murdy stated his "primary objective is functionality and durability". Steel fibers give you that... improved bending strength, crack control, fewer joints, abrasion resistance, lower maintenance costs, etc., etc..

Msquared... you seem real hung up on the fuzzy/rusty floor thing. Have you ever seen a properly constructed steel fiber floor? The fibers to not stick out. Sure you'll get a little surface rust, but who cares? This is an industrial building that somebody is dumping rock and sand on, and running over with heavy equipment.

Another suggestion to increase strength and limit joints, Is the post-tension the slab. Post-tensioning can also be used to reduce the thickness of the slab. While I agree with spats's basic premise, I do not agree that the use of fiber will allow no joints. It will allow different spacing of the joints (distance between joints can be a bit more), but it will not preclude the use of joints.

An hokie66 noted, the toughness of the slab will be increased by the use of fibers.

As dik alluded, don't let the fiber addition substitute for sound concrete mix design and placement practices.