Concrete may be a strong material but that doesn’t mean that it is invincible. Over time the structures can deteriorate due to continued use and rapid changes in the environment. Because of this, we have structural strengthening and concrete repair services in place to add that bit of extra protection to structures.
Fibre-reinforced concrete (FRC) contains fibrous material that aids in increasing its structural integrity. It contains short discrete fibres such as steel, glass and synthetic materials, with each lending varying properties. Utilising fibres isn’t a new concept by any means as they have been used since ancient times, with horsehair being included in mortar and straw in mud bricks. During the 1950s, the concept of composites was introduced and FRC was one of the more interesting topics. By the 1960s, steel, glass and synthetic materials were used in concrete, with research into discovering new FRCs continuing to this day.
FRCs come in a variety of forms and each one offers different advantages. Polypropylene and nylon fibres improve freeze-thaw resistance, can improve ductility and can reduce crack widths. It can also control the widths tightly, improving durability as a result. Steel fibres offer many of the same protective qualities as well, in addition to improving impact and abrasion resistance. Most importantly, the fibre is capable of improving the overall strength of the structure. Because of their similar characteristics, steel and polymeric blends are often used during construction projects in order to merge the benefits of both products.
At Churchill Concrete Technology we have a vast amount of experience providing structural strengthening and concrete repairs to bridges, roads and other surfaces that experience a consistently high volume of heavy vehicles. Strengthening and repairs are advised over rebuilding a concrete structure as it saves money, it is a fast solution and is also unobtrusive. If you would like to find out more about our services, feel free to contact us.