Geostatistical and multivariate statistical analyses were applied to heavy mineral data from an Amazonian fluvial-lake system near the Tapajós River mouth investigate spatial distribution source-area of sediments. Twenty-one points investigated, physical characteristics Green Lake deepest point determined. Sand accumulates in lake margins mud quantity increases towards center. Heavy assemblage ...

Abstract This study examines the use of sillimanite as a fine aggregate in production temperature-resistant reactive powder concrete. The impact high temperatures on mechanical strength concrete with High Alumina cement is investigated. effectiveness utilizing glass and properties RPC at investigated this research. samples were heated muffle furnace to desired then tested for their residual com...