Autoclaved aerated concrete is quite different from dense concrete (ie: ânormal concreteâ) in both the way it is produced and in the composition of the final product. Dense concrete is typically a mixture of cement and water, often with slag or PFA, and fine and coarse aggregate.roduction. Autoclaved aerated concrete is cured in an autoclave-a large pressure vessel. In aircrete production the autoclave is normally a steel tube some 3 metres in diameter and 45 metres long.
The result is given in cubic inches. Engine displacement is the volume swept by all the pistons inside the cylinders of a reciprocating engine in a single movement from top dead centre (TDC) to bottom dead centre (BDC).
Definition of 'engine'. engine (endÊÉªn ) The engine of a car or other vehicle is the part that produces the power which makes the vehicle move. He got into the driving seat and started the engine. ...an engine failure that forced a jetliner to crash-land in a field. Synonyms: machine, motor, mechanism, generator More Synonyms of engine.