Oxidative activity of plasmochemically "activated" solutions can be used for synthesis of complex oxide compounds.
Regarding the ceramic-like TiO2 barrier layer on its surface of Ti substrate to inhibit surface activity, a novel activating solution that composed of HF, HCl, Ce(NO3 2, TiCl3, and bal.
This paper evaluates the effect of fly ash and slag proportions and the type of activating solution on shrinkage and strength development of alkali-activated binary fly ash-slag mixtures (mortar and paste), cured at room temperature.
Initial setting times ranges from 38 to 263 min depending on the activating solution composition, and workability time decreases for increasing %Na2O.
The influence of the activating solution composition on the stability and thermo-mechanical properties of geopolymers made from a Cameroonian volcanic ash is investigated.
The volume ratio of powder to alkaline activating solution (Vp/Vaas) was chosen as an input signal, while flow value and flexural and compressive strengths were considered as output values.
Results show that the corrosion densities of Mg Zr alloy in OPC solution are one order of magnitude more important than in activating solution of Na-geopolymer and sodium fluoride addition decreases corrosion densities in OPC interstitial solution.
Corrosion behavior of Mg Zr in OPC interstitial solution and activating solution of Na-geopolymer has been studied in the presence and absence of sodium fluoride as corrosion inhibitor.
Ground granulated blast furnace slag can react with an alkaline activating solution to form a cement-like binder based on a calcium sodium aluminosilicate gel, which is a potential alternative to Portland cement in many applications.
This study investigates the effects of activating solution type, curing procedure, and source of fly ash in relation to the resulting compressive strength of fly ash-based geopolymer concrete.
Precursor Alkali activating solution, AAS (Na2O·2SiO2 + NaOH) Curing temps Age (days) 100%% Fly ash Total SiO2/Na2O = 1.2, 1.4, 1.6, 1.8 23, 40, 60 °C 3, 7, 28 Table 3 Final concrete mix proportions for alkali activated fly ash and/or slag (Ms modulus = 1.4).
