lightweight self-compacting concrete with structural fibers for rehabilitation of floor slabs of buildings.

摘要

lightweight self-compacting concrete with structural fibers for rehabilitation of floor slabs of buildings.; It comprises a concrete produced using a standard dosage, with use of conventional materials associated with expanded clay lightweight aggregate, fibers and chemical additives, plasticizer, superplasticizer and cohesive, the latter consisting of methylcellulose powder.; a material is obtained with characteristics in fresh and hardened well defined. Runoff is about 650 mm to 575 mm and reduction in the presence of Japanese ring, being a homogeneous and good passenger capacity by obstacles material. In the cured state, it has density in the vicinity of 1600 kg / m {3}, with next strength 20 MPa compressive strength 1.2 MPa and tensile strength, at 28 days. The method comprises applying the concrete produced in the rehabilitation of slabs, in which the structural element is the Catalan vault.