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ADA235191.pdf

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Summary

The structure of calcium silicate hydrate (C-S-H) formed from solution/sol mixing and hydration of tricalcium silicate (C3S) under fixed pH conditions has been studied using MAS NMR and related techniques. Two C-S-H phases with different structures and weight loss characteristics exist in the system CaO-SiO2-H20 and along the 10 wt. % isoalumina join through the system CaO-AI2O3-SiO2-H20. C3S hydration at varying pH levels (11-12) produced different C-S-H phases, with low pHs (<11.5) forming C-S-H with Q2 silicate chains and higher pHs (>11.5) forming C-S-H with Q1Q2 silicate units. A parallel study synthesized zeolites from synthetic and waste glasses mixed with alkali hydroxide solutions, observing Linde B1, chabazite, and gobbinsite under certain conditions, and evaluating the feasibility of producing zeolite-cement composites.

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The structure of calcium silicate hydrate (C-S-H) formed from solution/sol mixing and hydration of tricalcium silicate (C3S) under fixed pH conditions has been...

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File Format: PDF
File Size: 4.49 MB
Pages: 117
Language: EN
Total Downloads: 74
Last Updated: 7 days ago

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