In County Donegal, northwest Ireland, thousands of homes built with concrete blocks show an increasing degree severe structural defects attributed to high mica content in the aggregates. Consequently, problem is popularly known as “Mica Crisis”. this project four affected are investigated by microstructural and chemical analysis combined thermodynamic modelling. Apart from mica, aggregates cont...

This study investigates the corrosion behavior of three stainless steel grades at two H2SO4 concentrations, namely 1 wt% and 10 wt%, with varying NaCl concentrations in range from 500 mg/L to 10,000 mg/L. Dissociation sulfuric acid yields hydrogen (H+) sulfate () ions, former which lowers pH value a solution while latter increases concentration ions that act as inhibitor. The equilibrium chemis...

The environmental conditions to which a concrete may be exposed will condition its real range of use. Thus, behavior must, at all times, verified under wide variety conditions, in order ensure applicability. In this study, the strength development and durability fiber-reinforced self-compacting is analyzed. This particular incorporates 100% coarse (4/12 mm) fine (0/4 Electric Arc Furnace Slag (...

To explore the mechanical properties of concrete under true triaxial static compressive load after sulfate attack, uniaxial compression test and at four stress ratios were carried out on specimens immersed in 15% solution for 0–120 days by integrated dynamic testing system, variation performance indicators such as strength deformation coupling action attack complex state was analyzed. The resul...