Estudo da viabilidade de uma jazida de materiais para fins de utilização na pavimentação rodoviária

Abstract

In the present work done with soil from a deposit located in the interior of Alagoas, more precisely in the city of Delmiro Gouveia, close to AL-145. We apply the traditional geotechnical classification methodology for soils, in order to verify its application in road paving, through results obtained from geotechnical tests. The analyzes made in the soil allowed us to determine specific characteristics of the material in terms of granulometry, compaction, plasticity, liquidity and the material resistance determined by CBR. Through the results of the tests we had the possibility to explain characteristics of the soil present in the deposit, such as the marked presence of fine material that are Silt and Clay, showing variations only in the percentage of sand that makes up the studied soil, since the amount of boulder was quite low. Regarding soil classification, the samples were classified in the TBR (Transportation Research Board). According to the results of LL, LP, IP and the material passing through the N ° 200 sieve with values above 35%, it showed to be a silty-clay material, that is, although the material is quite fine, it also showed some representative parts of sand thus forming the soil of the deposit composed of (Silt, Clay and Sand). Regarding the CBR values, they varied from 3% to 11.3%, with all the material despite not being granular as most of the soils used in paving presented a resistance (CBR) that allows us to use this material in some layers of the paving as in subgrade and reinforcement of subgrade. Finally, the work enabled the geotechnical characterization of the soil of the indicated location, in which layers it can be applied in the road paving.