Bacharelado em Engenharia Civil

URI permanente desta comunidadehttps://ri.ifam.edu.br/handle/4321/746

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Estudo da aderência do bambu ao concreto
(2025-01-27) Sasahara, Antonio Toshiharu; Maruoka, Luz Marina Andrade; http://lattes.cnpq.br/9195629803452948; Maruoka, Luz Marina Andrade; http://lattes.cnpq.br/9195629803452948; Barros, Laerte Melo; http://lattes.cnpq.br/0299419739606476; Fernandes, Francisco José Rodrigues; http://lattes.cnpq.br/3166612623704256
The raw materials used by the construction sector cause environmental impacts, among which steel stands out with the greatest impact on greenhouse gas emissions during its production. Thus, seeking alternatives to replace steel is of paramount importance to mitigate carbon dioxide (CO2) emissions. Bamboo, being a renewable material, abundant in nature, and with a high rate of growth and propagation, presents itself as an excellent option, including for CO2 capture from the atmosphere. However, its greatest challenge is its adhesion to cement and its preservation against insect and fungus attacks. This research aims to evaluate the adhesion resistance between cement mortar and bamboo treated with borax using the hot water and cold water method. For this, species collection, treatment, drying, and adhesion tensile strength tests of bamboo to concrete were carried out. The treatment did not show bamboo decay within the concrete after 28 days immersed in water during the concrete curing process, and the pull-out resistance of the splints from the concrete showed results that enable its use with concrete, with average values for bamboo adhesion stress of 1.72 MPa, with the proposed preservative treatment.
Impermeabilização de lajes: uma comparação entre o uso de manta asfáltica e borracha líquida
(2025-01-28) Feijão, Glendda Feitosa; Barros, Laerte Melo; http://lattes.cnpq.br/0299419739606476; Barros, Laerte Melo; http://lattes.cnpq.br/0299419739606476; Silva, Fabio Martins da; http://lattes.cnpq.br/2714788689860282; Fernandes, Francisco José Rodrigues; http://lattes.cnpq.br/3166612623704256
This study presents a comparative analysis of two widely used methods for waterproofing slabs: asphalt membranes and liquid rubber. The research evaluated criteria such as ease of application, durability, cost, and environmental impact, considering a realistic scenario involving a 263.07 m2 area. The results showed that liquid rubber offers greater practicality and cost-effectiveness, being approximately 32% cheaper than asphalt membranes. However, asphalt membranes exhibited greater durability, estimated between 15 and 20 years, compared to 10 to 15 years for liquid rubber. Regarding environmental impact, both materials present challenges, such as low biodegradability and risks associated with improper disposal, requiring responsible practices to mitigate negative effects. This study contributes to more informed decisions in the construction sector, highlighting the benefits and limitations of each material for different project contexts.
Reconstrução de um projeto comercial com a utilização da tecnologia scanner para BIM
(2023-03-31) Oliveira, Wenderson Igor de Almeida; Silva, Felipe Wilson Leão da; Barros, Laerte Melo
Modeling aims to make built environments easier to understand, define and quantify materials, visualize, and simulate physical spaces. Currently, building information models (BIM) have been widely used in the creation phase of new constructions, but the use of BIM becomes a challenging process when it needs to be applied in buildings that were built before the technology existed. And today, engineering and construction needs more efficient information models for the reconstruction of 3D projects of old buildings and the architectural heritage of large cities, to facilitate decisionmaking in renovations and new adaptations. The traditional process to create or update the 3D modeling of a building built before BIM is a time-consuming and laborious procedure. Laser scanning technology from point clouds with the integration of a global positioning system, for refinement and adjustment of the external and internal environments of the building help to reduce errors. This article proposes a procedure capable of integrating images and accurate information from a mobile LiDAR scanner by point clouds, a positioning system, and finally, a reconstruction BIM model. The results showed that the procedures improved the quality of the reconstruction in terms of completeness, precision, and speed in modeling.