In Hong Kong, engineers turned waste glass into concrete blocks; 15 years later, field checks found no cracking from the reaction that can damage glass concrete

For over 15 years, engineers in Hong Kong have pioneered the use of recycled glass in concrete pavers, meticulously studying their performance to prevent cracking. The research addressed earlier concerns regarding the reaction between glass and concrete, revealing no internal cracking due to alkali-silica interactions. This groundbreaking approach not only supports waste management but also advances sustainable construction practices in urban environments.