Luís Evangelista

TL;DR: In this paper, the use of fine recycled concrete aggregates to partially or globally replace natural fine aggregates (sand) in the production of structural concrete is discussed, and the results of the following tests are reported: compressive strength, split tensile strength, modulus of elasticity and abrasion resistance.

TL;DR: In this paper, different concrete mixes with increasing rates of substitution of fine natural aggregates with fine recycled aggregates from crushed concrete were prepared and tested, and the results were then compared with those for a reference concrete with exactly the same composition and grading curve, but with no recycled aggregate, drawing some conclusions on the feasibility of using this type of aggregate in structural concrete.

TL;DR: In this paper, the authors analyzed the mechanical performance of concrete with recycled aggregates from construction and demolition waste (CDW) from various locations in Portugal and concluded that the use of RA worsens most of the properties tested, especially when fine RA are used.

TL;DR: In this paper, the main results of experiments to determine the influence of different curing conditions on the mechanical performance of concrete made with coarse recycled aggregate from crushed concrete were analyzed, including compressive strength, splitting tensile strength, modulus of elasticity, and abrasion resistance.

TL;DR: In this paper, two types of latest generation superplasticisers were used that differ in terms of water reduction capacity and robustness, and the workability, density and compressive strength of each of the compositions analysed were then compared: a reference concrete, with no plasticisers, and concrete mixes with the super-plasticizers.