Autoclaved aerated concrete (AAC, Aircrete). Autoclaved aerated concrete is a versatile lightweight construction material and usually used as blocks. Compared with normal (ie: âdenseâ concrete) aircrete has a low density and excellent insulation properties.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.
Between 1870 and 1871 Congress passed the Enforcement Acts -- criminal codes that protected blacks' right to vote, hold office, serve on juries, and receive equal protection of laws.
Research & Reports | Guide to Law Online | Legal Research Guides | Legal Reports | Guides to Our Collections. Statutes, also known as acts, are laws passed by a legislature. Federal statutes are laws enacted by Congress with (and in some circumstances without) the approval of the President. Federal statutes are published in three formats: (1) initially as individual slip laws, (2) in compilations of slip laws known as session laws, and (3) as codified law incorporated into a code.