Synthesis of β-C2S-based binder from limestone and calcium silicate wastes

Kubátová, Dana; Zezulová, Anežka; Rybová, Alexandra; Boháč, Martin

doi:10.1007/s10973-019-08521-0

Cited by 6 publications

(1 citation statement)

References 24 publications

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“…Due to the superior waterreduction capabilities of such composite materials, the workability is improved, however, that may lead to an increase in the number of fine particles [11][12][13]. As a result, the hardened self-compacting mortar is obtained, characterized by high early-strength, smooth surfaces, and dense structure [12][13][14].…”

Section: Introductionmentioning

confidence: 99%

Crystal-Chemical and Thermal Properties of Decorative Cement Composites

et al. 2021

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The advanced tendencies in building materials development are related to the design of cement composites with a reduced amount of Portland cement, contributing to reduced CO2 emissions, sustainable development of used non-renewal raw materials, and decreased energy consumption. This work deals with water cured for 28 and 120 days cement composites: Sample A—reference (white Portland cement + sand + water); Sample B—white Portland cement + marble powder + water; and Sample C white Portland cement + marble powder + polycarboxylate-based water reducer + water. By powder X-ray diffraction and FTIR spectroscopy, the redistribution of CO32−, SO42−, SiO44−, AlO45−, and OH− (as O-H bond in structural OH− anions and O-H bond belonging to crystal bonded water molecules) from raw minerals to newly formed minerals have been studied, and the scheme of samples hydration has been defined. By thermal analysis, the ranges of the sample’s decomposition mechanisms were distinct: dehydration, dehydroxylation, decarbonation, and desulphuration. Using mass spectroscopic analysis of evolving gases during thermal analysis, the reaction mechanism of samples thermal decomposition has been determined. These results have both practical (architecture and construction) and fundamental (study of archaeological artifacts as ancient mortars) applications.

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