IPA: /træs/
KK: /træs/
A type of light-colored volcanic rock that is used in making hydraulic cement.
The builders used trass to create a strong and durable foundation for the structure.
The word 'trass' originates from the Dutch word 'tras', meaning a type of volcanic ash used in construction. It refers specifically to a material that is used in making cement and mortar.
Think of the Dutch word 'tras' for volcanic ash, which helps you remember that 'trass' is a material used in construction.