1. 01/01/1988 O Product. para fazer Portland cimentar, uma mistura esmagada de pedra calcária, e barro é aquecido para formar " escória de carvão com a " qual está misturada gesso e fundamentou a uma multa, pó desidratado. Qualidade controle é essencial durante fabrique. no que O cimento é transportado bolsas...
  2. 01/01/1965 Concreto é um material de construção forte e barato quando for corretamente preparada e usado. Esta introdução explica a importância de uma mistura boa e descreve os materiais usados na mistura. Seguindo isto são entradas em: Calculating quantias de materiais para concreto Mixing concreto através...
  3. 01/01/1970 This study was undertaken primarily to determine whether the manufacture of lightweight concrete bricks, on a small scale and using rice husks as an aggregate, is economic. Technical details of the process are not included in this report which is restricted primarily to the costing of a...
  4. 01/01/1955 144 pages, illustrated, photos
  5. 01/02/1973 Ferrocement, a thin-shell concrete reinforced with wire mesh, is a highquality construction material whose ingredients are widely available in developing countries. It can be used to build a wide range of structures, and can be worked mainly by unskilled, though supervised, labor. Throughout the...
  6. Abstract, Scientific Research, 2019 Many timber producing countries generate more than 2 million m3of sawdust annually. In developing countries, sawdust is often disposed of by open dumping, open burning, or dumping in landfills. This poses huge environmental challenges related to air pollution,...