COMPARISON OF FATIGUE PARAMETERS OF ALKALI-ACTIVATED AND ORDINARY PORTLAND CEMENT BASED CONCRETES

Seitl Stanislav, Bílek Vlastimil, Keršner Zbynek

Abstract: Concretes used in civil structures are usually made on ordinary Portland cement (OPC) base. Alkali activated concretes (AAC) are considered as a perspective building materials. They show high strength, good durability, and good resistance to aggressive agents etc. This paper introduces the values of the basic fatigue parameters of both types of concrete; the alkali-activated concrete is prepared as a new material for the potential production of concrete elements developed by ZPSV, a.s. company. The concrete mixtures have a similar utilization and therefore the fatigue parameters can be compared. The specimens were prepared and tested under static (compressive strength) and cyclic loading (fatigue parameters Wöhler curve). The experimentally obtained results (mechanical and fatigue) of both types of concrete are compared and the suitability of these types of composites for their application is discussed.

Keywords: Fatigue, Wöhler curve, Fracture mechanics, Alkali-Activated Concrete, concrete C45/55

DOI: https://doi.org/10.15623/ijret.2014.0325032