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Hydration characteristics, hydration products and microstructure of reactive powder concrete
Journal of Building Engineering, 2023 Yes Reactive Powder Concrete (RPC) is a new type of cementitious materials with a complex hydration mechanism, and active admixtures greatly influence the hydration reaction, formation of hydration products, and evolution of microstructure. In order to comprehensively study the quantitative effects of active admixtures contents, namely silica fume ...
Chuanzhi Sun, Wenjie Ge
exaly +3 more sources
Pozzolanic Reactivity and Hydration Products of Hedenbergite
Chemical Engineering Transactions, 2017 With hedenbergite, desulfurized gypsum and calcium hydroxide as the materials, this paper studies the pozzolanic reactivity of finely ground hedenbergite and performs XRD, IR, NMR and SEM analysis on the hydration products of the neat paste specimens ...
Biyao Geng +7 more
doaj +2 more sources
Tungsten mine waste geopolymeric binder: Preliminary hydration products investigations [PDF]
Construction and Building Materials, 2009 Geopolymeric mine waste mud (GMWM) binders are obtained from dehydroxylated waste powder mixed with minor quantities of calcium hydroxide, activated with NaOH and waterglass solutions.
F Pacheco-Torgal +2 more
exaly +2 more sources
A Scanning Transmission X-ray Microscopy Study of Cubic and Orthorhombic C₃A and Their Hydration Products in the Presence of Gypsum. [PDF]
Materials (Basel), 2016 This paper shows the microstructural differences and phase characterization of pure phases and hydrated products of the cubic and orthorhombic (Na-doped) polymorphs of tricalcium aluminate (C₃A), which are commonly found in traditional Portland cements ...
Rheinheimer V +5 more
europepmc +9 more sources
Buildings, 2023 The temperature stress caused by the large temperature difference is the main factor causing harmful cracks in large-volume concrete. The introduction of admixtures is beneficial to reduce the temperature difference inside and outside the large-volume ...
Liguo Wang +8 more
doaj +1 more source
Case Studies in Construction Materials, 2022 There is limited measure available to quantify the effect of polycarboxylate-ether based superplasticizer (PCE) on the microstructure of cement-based systems during the first 24 h.
Weiwei Zhu +4 more
doaj +1 more source
Frontiers in Earth Science, 2022 As one of the most used grouting materials, cement has the characteristics of low price and a wide resource of raw material. With the in-depth research and application of cement admixture, the compatibility between different water-reducing agents and ...
Huang Teng +7 more
doaj +1 more source
工程科学学报, 2022 To investigate the early hydration and consolidation mechanism of superfine metal tailings powder in the CaO–CaSO4–H2O system, a clinker-free consolidation material based on iron tailings powder was prepared by superfine grinding lime, gypsum, and iron ...
Juan-hong LIU +4 more
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Study on hydration process of red clay cement grout and micro-morphology of grout stone
Meikuang Anquan, 2023 In order to study the hydration process of red clay cement grout prepared by red clay in the southwest Wumeng mountain area in southwest China and the micro-morphology of the grout stone, the hydration heat characteristics of red clay cement grout were ...
HE Wen
doaj +1 more source
Beilstein Journal of Organic Chemistry, 2023 In order to replace the expensive metal/ligand catalysts and classic toxic and volatile solvents, commonly used for the hydration of alkynes, the hydration reaction of alkynes was studied in the ionic liquid 1-butyl-3-methylimidazolium tetrafluoroborate (
Marta David +5 more
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