Abstract: Hydrogen production via Sorption-Enhanced Chemical-Looping reforming combines hydrocarbons reforming (in this case methane reforming), by chemical-looping auto-thermal reforming, with water-gas shift and carbonation reactions. Both H2 production rate and concentration depend on the chemical equilibrium that is established in the fuel reactor and that is influenced by several parameter...

The purpose of this study is to clarify the carbonation progress precast concrete get knowledge for suggestion evaluation and prediction method carbonation. measured data compressive strength depth core specimens sampled from 495 actual buildings were analyzed. As a result analysis, indoor side showed higher rate coefficient than outdoor both sides cast-in-place concrete.

Five recycled coarse aggregate (RCA) treatment techniques including flow-through carbonation, pressurized wet nano silica (NS) pre-spraying and combined carbonation with NS pre-spraying, were utilized to improve the performance of concrete (RAC). The characteristics stress–strain curves RACs peak stress, strain, elastic modulus, ultimate strain toughness evaluated after using above RCA techniqu...

This study investigates the influences of recycled waste glass powder (RGP) on carbonation behaviour sodium carbonate activated ground granulated blast furnace slag (GGBS) mortars. The effect activator dosages, types and RGP addition resistance to are evaluated. results indicate a high dosage or water combination as always can enhance ability carbonation. Furthermore, 30% in GGBS binder system ...

Abstract Carbonation curing differs from weathering carbonation since it is performed intentionally at the early ages of cement hydration. This cure involves applying different levels CO2 (5% to 99%) concrete for a short period time, usually followed by conventional The objective this article was evaluate in metakaolin-based geopolymer concretes, activated with NaOH and Na2SiO3, compare them Po...

One of the heaviest problems of reinforced concrete structures consists in the steel armature corrosion. The steel armature condition affects, above all, the properties of horizontal structures. It is to be noted that the corrosion process itself may not be observable from the outside in many cases. This is why studies of non-destructive methods allowing the researchers to detect the degree of ...