WHAT ARE THE STANDARDS FOR EPOXY COATED TMT BARS IN UAE

Steel Bar Standards:

• ASTM A615 / A615M: Standard reinforcing bars made of deformed and plain carbon-steel.
• BS 4449: Concrete reinforcing steel British standard.
• ISO 6935: International standard of steel to reinforce concrete.

These standards stipulate the mechanical characteristics, chemical composition, yield strength and tensile strength needed to reinforce steel bars. Commonly used grades in UAE projects are Grade 40, Grade 60, B500B, etc. high-strength grades.

Epoxy Coating Standards:

The TMT bars should be sprayed with epoxy material that has a tight coating specification to be resistant to corrosion and to last long. The most frequently applied standards are:

• ASTM A775 / A775M: Steel bar bonded epoxy Fusion coating.
• ASTM A934/ A934M: Coating on prefabricated reinforcing bars, epoxy.
• ISO / BS: they apply to protective coating.

According to these standards there are the thickness of the coating, adhesion capability, flexibility and the ability to withstand impact or damage when being handled. The reason why fusion-bonded epoxy (FBE) coating is very common is because of the fact that it provides a protective coating that keeps the chloride ions at bay so that they do not get access to the steel surface.

UAE CONSTRUCTION AND MUNICIPALITY REQUIREMENTS

Along with the international standards, the materials which are used during construction in UAE also tend to be certified or approved by the local authorities.

Common approvals include:

• The certification of Dubai Central Laboratory (DCL)
• Abu Dhabi Municipality approvals
• CARES (UK) certification for reinforcement steel

These certifications allow steel bars sold to construction projects to be of a required standard concerning durability and structural safety standards.

The reinforcement is frequently required to be covered with epoxy in:

• Coastal structures
• Maritime construction projects.
• Foundations in saline soil
• Construction of bridges and infrastructure works.

The reinforced concrete structure life is greatly enhanced by the epoxy layer as it helps in stopping corrosion of the embedded steel.

TO CONCLUDE

The epoxy-coated TMT bars in the UAE have to conform to both international steel standards and underlay coating requirements which guarantee the durability of the steel and the structure itself. The mechanical properties and coating performance of these bars are governed by such key standards as ASTM, BS, and ISO. Moreover, there are local certification bodies such as the Dubai Central Laboratory and CARES that ensure that the construction aspects are met in the UAE.

Companies who manufacture, supply and contractors have no choice than to comply with this structure. It also makes sure that the TMT bars covered with epoxy are applied in iconic UAE buildings, including high-rises in Dubai and vital infrastructure in Abu Dhabi where corrosion resistance over time is required to prevent corrosion under the harsh environmental conditions found in the region.

Related Link: Why Choose Epoxy Coated TMT Bars In UAE Construction