Prof. Dr. Bernardo Borges Pompeu Neto2025-03-172015https://rigalileo.itegam.org.br/handle/123456789/718Due to the variability found in the composition of the fine aggregate regarding color, grain size, presence of clay, and powdery materials, technical control is necessary to examine the fine aggregate. The general objective of this research is to characterize and quantify two sand samples in the laboratory, one white and the other pink, both from deposits located in the city of Santarém/PA. As a specific objective, compare the trace obtained in the laboratory (controlled trace) with the estimated trace (empirical) practiced in small works. The methodology is based on the literature review of scientific articles, books, and technical standards. The characterization of the samples was obtained through test procedures and standardized materials, determining the specific mass, unit mass, particle size analysis, powdery material content, and other characteristics. The ACI/ABCP method was used for dosing and determining the traces for the sand samples. Three traces were performed with a resistance to be achieved of 20 MPa, two controlled traces in the laboratory, and one estimated trace. After making and testing 24 specimens, the results showed that the controlled trace in the laboratory reaches the desired strength, while the estimated trace shows resistance below the expected. It is concluded that technical control of dosing in the sand to be used throughout the construction process of any civil work in Santarém/PA is important to ensure concrete within technical standards, resistant to constant humidity and extreme temperature variations during the six months of winter in the Amazon.ConcretoAgregado miúdoConstrução civilDosagemResistênciapdf.Engenharias; Engenharia Civil; Materiais e Processos Construtivos