Abstract Reinforced concrete bridges with post‐tensioned cables are particularly critical structures, as the degradation of tendons is not fully detectable through conventional investigation methods and/or visual inspections, due to intrinsic nature structural typology. After shortly reviewing main applications current non‐destructive (ND) available for investigating deterioration and grout, pa...

Dam foundations are generally affected by water leakage and seepage, posing a significant threat to the structure's safety. Such an artificial reservoir unconditionally assumes watertight foundation, as perfect possible, ensure its stability. This brings us back thinking about adequate treatment of foundation through injections grout curtain, which ensures watertightness ground good drainage sy...

Continuing to fertilize bareroot and container seedlings during the hardening process (from cessation of height growth until lifting) can improve seedling viability. The process of fertilizing during hardening has many names, but in the last decade a new term, nutrient loading, has come into use. The process of nutrient loading seedlings leads to luxury consumption indicated by foliar nitrogen ...

Work hardening in crystalline materials is related to the accumulation of statistically stored dislocations in low-energy structures. We present here a model which includes dislocation dynamics in the rate-independent setting for plasticity. Three basic physical features are taken into account: (i) the role of dislocation densities in hardening; (ii) the relations between the slip velocities an...

In bridges, external post-tension habitually comes as cables placed in ducts for which the residual internal space is (imperfectly) filled with a fluid cement grout. Detecting the problems of injection is not practicable visually from the outside, and no effective auscultation tools were found yet. A recent laboratory experiment established that capacitance probes can be employed, but the main ...