The Institute of Engineering and Technology, Ghana (IET-Ghana) has raised serious concerns regarding the use of untreated bamboo as a reinforcement material in concrete construction.
In a recent statement, the institution emphasized that while bamboo has been traditionally used in various forms of construction, its properties make it unsuitable for replacing steel in concrete without proper treatment and further research.
They cautioned that using untreated bamboo can compromise structural integrity, as bamboo absorbs water, leading to swelling and eventual shrinking, which weakens the bond with concrete.
IET-Ghana explained that bamboo, a carbon-based material, is prone to decomposition, particularly in alkaline environments like concrete. This natural material, if untreated, does not withstand the harsh conditions that steel can endure in reinforced concrete. The institution further pointed out that bamboo’s natural tendency to absorb moisture makes it unstable, which could create gaps within the concrete over time, posing safety risks.
The institute highlighted the potential benefits of bamboo as an affordable and sustainable material but insisted that until proper treatment methods are developed and standards are put in place, using bamboo in concrete structures could be dangerous. They suggested that research into effective treatments for bamboo could address its water absorption and bond strength issues, but until such innovations are standardized, they cannot endorse bamboo for these purposes.
In addition, the IET-Ghana emphasized the importance of regulating any potential future use of bamboo in construction. They called for collaboration between the Ghana Standards Authority and the Engineering Council to establish clear guidelines on the treatment and use of bamboo, ensuring that construction materials meet safety and durability requirements.
The growing interest in bamboo stems from its environmental and cost advantages compared to steel, particularly in developing countries where sustainable and affordable materials are in high demand. However, the institution was adamant that safety must not be compromised in favor of cost-saving measures.
Until bamboo can be safely integrated into concrete construction, IET-Ghana urged engineers, builders, and developers to continue using proven materials like steel to ensure the longevity and safety of structures across the country.
