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This paper covers studies made using different mixes for cellular concrete variating silica sand, vulcanic glass and aluminium powder contents. Studies on compressive strenght, dry density and X-ray diffraction are performed on autoclave cured cellular concrete, concluding that best results are attained when vulcanic glass contents reaches 50% of silica sand. When percentage of aluminium powder is diminished from 0.11% to 0.09%, alight increase in density, with noticiable growth of comprensive strength are observed.