Mineralogical analysis of sand sample from Areal Morro Branco in Porto Grande – AP

Abstract

The municipality of Porto Grande was created on May 1, 1992 and is located in the Northern region of the State of Amapá, with an area of 4 400 km². The objective of this work is to perform the semiquantitative analysis of a sand sample from Areal located in the municipality of Porto Grande, the sample collected went through some fundamental steps such as: drying, moisture determination, determination of clay, silt and sand fractions, homogenization, quarteamento and particle size analysis. In the determination of humidity we obtained the percentage of 2.4%, and this was the difference between the wet mass and the dry mass of our sample P1, after the sieving process, the percentage of the material retained in each sieve was calculated to analyze the performance of our sieving and finally the determination of the clay fractions was performed, which had as weight 0.17 g , silt weighing 24.83 g and sand weighing 275 g. However, at the end of the tests we can observe an anomaly in the results of particle size analysis, due to the fact that the sieve in question would be moist, thus preventing the entire fine granulometry material from passing.