In several alkali restorations the high proportion of perennial weeds was detected in year 3.
This paper presents a systematic approach for selecting mix proportions for alkali activated fly ash-based geopolymer concrete (GPC).
Based on the analyzed results, an optimal proportion of ternary alkali activators (SCC 4%, WGC 2.5%, WGM 1.1 1.5 and WSR 0.4) is proposed.
The samples have been produced by reacting an aluminosilicate powder with an aqueous alkali silicate solution, in different dilution proportions, achieving very high geopolymerization conversion (higher than 97%).
Although R2 and R3 were loaded with MSWI BA with different proportions, less amounts of alkali metals contained in the BA without leachate recirculation were found compared to the simulated landfill with leachate recirculation.
Alkali chloride partial pressures vary almost in proportion to their mole fractions in melts, with their activity coefficients being close to one.
In order to analyze the durability, mixing was carried out with 0.3 M KOH, an alkali activation agent, and the table of mix proportion is as shown in Table 9.
The cob has a significantly higher xylan and lignin content than the other fractions of the corn plant and, therefore, it is reasonable to assume that it will lose a greater proportion of its mass following dilute alkali pretreatment.
Through tests, this study verified that GGBOS can be used as alkali activators for GGBS and that the mixture proportions of S4I6 and S5I5 correspond with the physical and chemical requirements specified in ASTM C595/C595M-13.
An increase in alkali concentration to 0.8 M NaOH brought a decrease in the proportion of C 3)–OH···O–C(5) to 22.59%, but significant increase in the C 6)–OH···OC (52.92%).
Soils containing a large proportion of sodium with carbonate as the predominant anion are termed alkali soils; those with chloride or sulphate as the predominant anion are saline soils.
