The emergence of geosynthetics changed many aspects of the project and construction of civil and environmental works. Due to the existence of a wide variety of products and the constant advancement in the development and dissemination of new technologies. These materials are applied in different engineering solutions, highlighting the possibility of using recyclable and biodegradable materials and executing geotechnical and environmental works ranging from the control of erosion to the protection of groundwater. In this context, this work presents a literature review on the use of recyclable and biodegradable materials as geosynthetic products, as well as their association with traditional geosynthetics for solutions in engineering works. The review was carried out through the platforms Google Scholar and Portal of Journals of CAPES, using keywords and Boolean connectors as descriptors. It is observed that there is a potential for the use of recyclable and biodegradable materials as geosynthetics. However, there is still a need for a careful assessment concerning the benefits, limitations, and impacts caused by the use of these wastes.
The present study has the main objective of discussing about the characteristics and behavior of potentially expansive soils. These soils are present in several geographic regions across the world and exhibit variations in volume that consists of expansion or contraction, which are function of increasing or reducing its moisture content. A survey of the technical literature on the topic was carried out to support the study. The used methodology consisted of the application of direct and indirect methods that are based on index properties and in the conduct of laboratory tests. The obtained results were analyzed and compared to estimate the swelling potential and soil behavior. Therefore, the final considerations were presented.
The presence of expansive soils in road works is linked to deformations, which causes an increase in the need for maintenance. There is monitoring software, however, they do not take into account parameters of the behavior of expansive soils. In this sense, a mathematical model with inputs of expansive soil parameters, are essential to reduce production and maintenance costs. This study aims to seek, through a systematic literature review, scientific publications, and patents that include mathematical models capable of evaluating the performance of pavements through the behavior of expansive soils. It was observed that there are few publications related to the theme and the models found do not take into account specific parameters of the behavior of expansive soils.
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