Browsing by Author "Tamura, Rodrigo Teruaki"
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- Betão leve de estrutural aplicado a sistemas de fachadas pré-fabricadasPublication . Tamura, Rodrigo Teruaki; Oliveira, Maria do Rosário SantosThe use of precast concrete parts is no longer a novelty in the civil construction market. Several authors cite the advantages of its use, such as reduced construction time added to greater durability of the structure. One of the limitations of its use is the weight of the pieces, which require specific equipment for assembly. The present study aimed to develop lightweight concrete mixtures using a dosage method based on particle packing, for application in precast concrete panel pieces. For the dosage of these concretes, a particle packing method was used, which consists in improving the distribution between the materials used (gravel, clay, EPS, sand and cement) by filling the voids that are left between the materials of larger size with those of smaller size. Through the tests performed, the concretes presented positive results, reaching strengths above 30 MPa and spreads above 600 mm. Therefore, it can be concluded that the method used presents great potential when the objective is linked to concretes that use lightweight aggregates for precast parts. Analyzing the relationship between the calculation methodology used, the structural verifications performed, the results and the applicability of the final products generated, it can be concluded that its application generates impacts such as reducing the weight of the structure and the amount of steel used without affecting the structural balance of the model.