Controle de compactação dos solos por meio do frasco de areia com agregado miúdo da região metropolitana de Manaus-AM

Abstract

Currently, the sand bottle is used for control soils compaction in most earth works in the Amazonas, relating the apparent specific mass "in situ" with the apparent specific mass dry according to the optimum humidity obtained in the laboratory. This is a geotechnical test using washed, dried and standardized sand in the granulometric range between 0.80 and 0.60 millimeters. This research replaces the sand in the standardized bottle, with fine aggregate from the metropolitan region of Manaus-AM. The granulometry tests indicate that the sand collected from this research is very uniform, well graded and has a maximum characteristic diameter equal to 1.19 mm. The predominant granulometric fraction classifies the particulate material from Manaus as medium sand (56.67%), with apparent dry specific mass and grain mass respectively equal to 1.5118 g/cm³ and 2.6042 g/cm³. Performed the field tests were carried out in the parking lot of the Instituto Federal do Amazonas (IFAM), Manaus Centro Campus, obtaining the apparent specific masses "in situ" with the standard sand bottles equal to 1,727.74 kg/m³ and with fine aggregate from Manaus the value of 1,620.13 kg/m³. The Degree of Compaction was satisfactorily evaluated based on the relative percentage error, with a view to paving in the Amazonas.