Retaining walls are used in various applications to hold back a large amount of soil or sand that would not typically stand at that specific angle, typically a very steep slope or hill. This helps to avoid erosion They are used on roadways, coastal lines, and landscaping. When it comes to coastal lines where soil or eath is on the backside and water on the front side it is called a seawall.
They are one of the most exposed concrete structures as they are prone to salt and water damage. Retaining walls are used on roadways where they can be splashed by water and dirt or along coastal walkways and barriers where the saltwater can eat away at the structure. The weight of the saturated soils behind the walls can also push against and that can cause it to break apart in some cases or have poor drainage solutions.
Fiberglass rebar holds a large advantage over steel rebar when it comes to structures such as retaining walls. Structures can corrode over time which is a chemical reaction between any material and its environment and can cause deterioration of materials. Corrosion-resistant options will save money and time long term especially in structures such as retaining walls that pose a costly risk to tear down after rebar has corroded. Fiberglass rebar is a corrosion-resistant product and will not rust even in harsh environments such as salt, chemicals, chloride, or the alkaline present in concrete.
Fiberglass rebar also has a stronger tensile strength than other forms of rebar. It has double the tensile strength and is only a quarter of the weight of steel rebar.