Relation between crack width and corrosion degree in elements of concrete with crushed sand

CABRERA O.A.; ORTEGA N.F.; TRAVERSA L.P.; DONZA H.

Johannesburg

Congreso; International Conference on Construction Materials and Structures (ICCMATS); 2014

University of Johannesburg

Abstract. The development of cracks due to corrosion products depends on the quality of the concrete, the concrete cover thickness, etc. The link between the rate of growth of crack width and the evolution of corrosion, can predict the safety and suitability for service residual of reinforced concrete structures. In this sense, this work assesses the impact of the influence of the type of fine aggregate and water/cement (w/c) ratio on the evolution of the "crack width" regarding the "concrete cover/diameter of the steel" relation. Then, two series of beams were made with w/c ratio of 0.45 and 0.50. The results show that the type of sand and the w/c ratio significantly influence the growing mechanism of crack width, and the obtained information is compared to results obtained by other authors.