The use of block and automatic brick has been increasing in the construction sector in Bangladesh gradually for the last 10 years and brick manufacturers are also switching to the relatively environment-friendly brick-making.    “Autoclaved Aerated Concrete (AAC) will be the future building materials for this century replacing all major carbon-emitting alternatives,” said Abraj T Vettuparampil, managing director of Masa Concrete Plants India Private Ltd, a machinery manufacturer for building materials. AAC is made with fine aggregates, cement, and an expansion agent that causes the fresh mixture to rise like bread dough. Its light weight/cellular properties make it easy to cut, shave, and shape, accept nails and screws readily, and allow it to be routed to create chases for electrical conduits and smaller-diameter plumbing runs. This gives it design and construction flexibility, and the ability to make easy adjustments in the field. Masa India, a subsidiary of Masa, Germany’s pioneer of automated building materials machinery manufacturer, took part at the 5th Bangladesh BUILDCON International Expo at the International Convention City Bashundhara in the capital’s Kuril. The three...