The effects of inorganic salt contamination on the strength and durability of geopolymers

By W.K.W. Lee, J. V. van Deventer. 2002

469 citations recorded by the source corpus.

Subfields: Civil and Structural Engineering, Materials Chemistry

View Paper: https://www.semanticscholar.org/paper/d5f8b63672dd2e3cfdd9e335ae025f4a3266f01b

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In Civil and Structural Engineering

In Materials Chemistry

Citations in the corpus

Compressive strength and microstructural analysis of fly ash/palm oil fuel ash based geopolymer mortar (2014, background): “The distinct intensity band at 445 cm 1 is associated with the SiAOASi bending vibration and another intense band at 990 cm 1 is associated with the SiAOASi and SiAOAAl asymmetric stretching vibration for all of the materials [39,40].”
Synthesis of geopolymer composites from blends of CFBC fly and bottom ashes (2012, background): “For the NaOH-rich geopolymer, the common atmospheric carbonation is revealed by the band centered at 1438 cm 1 for O–C–O stretching vibration [39].”
The coexistence of geopolymeric gel and calcium silicate hydrate at the early stage of alkaline activation (2005, unknown): “Previous studies [19–21] have found that calcium has a positive impact on the compressive strength of geopolymeric binders.”
Effect of Solids-To-Liquids, Na2SiO3-To-NaOH and Curing Temperature on the Palm Oil Boiler Ash (Si + Ca) Geopolymerisation System (2015, background): “This may be due to excessive sodium silicate that retarded the geopolymerisation process by the precipitation of Al-Si phase, which prevented contact between the reacting material and activating solution and decreased the activator content [13].”
Alkali-activated binders: A review. Part 2. About materials and binders manufacture (2008, background): “Lee and Deventer [31] studied the influence of inorganic salt in alkali-activated mixtures of fly ash and kaolin, having reported that strength and durability are negatively affected by chloride salts, because they formed crystals inside the structure lowering its strength.”
EFFECT OF SODIUM HYDROXIDE CONCENTRATION ON FRESH PROPERTIES AND COMPRESSIVE STRENGTH OF SELF-COMPACTING GEOPOLYMER CONCRETE (2013, background): “However, excess hydroxide ion concentration caused aluminosilicate gel precipitation at the very early stages, and subsequent geopolymerization was hindered, resulting in lower strength [24].”
Geopolymer synthesis using alkaline activation of natural zeolite (2010, background): “The drop in strength to compressive with an increase in SS has been reported for some systems and is due to inhibition from the geopolymerization reaction through Al–Si phase precipitation which prevents contact between the reacting material and the activating solution and decreases activator concen”