Results 11 to 20 of about 204,898 (308)
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
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METHANE HYDRATE PRODUCTION FROM ALASKAN PERMAFROST [PDF]
, 2005 Natural-gas hydrates have been encountered beneath the permafrost and considered a nuisance by the oil and gas industry for years. Engineers working in Russia, Canada and the USA have documented numerous drilling problems, including kicks and uncontrolled gas releases, in arctic regions.
Kadaster, Ali +4 more
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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 ...
Wenjie Ge +10 more
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Study on the effect of activated coal gangue on the mechanical and hydration properties of cement
Frontiers in Materials, 2023 This study aims to minimize the carbon emissions of cement and investigate the viability of employing activated coal gangue (CG) as an additional cementitious ingredient.
Zewen Zhu +12 more
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Hydrate Production Philosophy and Thermodynamic Calculations [PDF]
Energies, 2020 The amount of energy in the form of natural gas hydrates is huge and likely substantially more than twice the amount of worldwide conventional fossil fuel. Various ways to produce these hydrates have been proposed over the latest five decades. Most of these hydrate production methods have been based on evaluation of hydrate stability limits rather than
Kvamme, Bjørn +6 more
openaire +4 more sources
Portland cement hydration in the presence of admixtures: black gram pulse and superplasticizer
Materials Research, 2008 Effect of admixtures such as black gram pulse (BGP) and sulfonated naphthalene based superplasticizer (SP) on the hydration of Portland cement has been studied. The hydration characteristics of OPC in the presence of BGP and SP were studied with the help
Viveka Nand Dwivedi +4 more
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Effect of C-S-H Nucleating Agent on Cement Hydration
Applied Sciences, 2021 This work aims to study the effect of a nucleating agent on cement hydration. Firstly, the C-S-H crystal nucleation early strength agent (CNA) is prepared.
Wenhao Zhao +3 more
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Hydration characteristics of cement pastes incorporating electric arc-furnace slag [PDF]
, 2012 This paper presents the results of a comparative study of the hydration characteristics of cement pastes incorporating steel slag or ground granulated blastfurnace slag (GGBS) as substitutes for ordinary Portland cement (OPC).
Muntasser, T. Z., Nwaubani, Sunny O.
core +1 more source
Hydration process and strength development of autoclaved products using skarn-type copper tailings
工程科学学报, 2015 Hydration reactions of samples made from skarn-type copper tailings, blast furnace slag, quartz sand, cement clinker and natural gypsum during the process of pre-curing, autoclaving and re-curing were investigated by strength testing, X-ray diffraction ...
ZHU Li-ping +4 more
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Advances in Civil Engineering, 2019 The weight losses of cement-based material samples were often used to characterize the content of their hydration products and explain the strength changes of cement-based materials. However, the quantitative relationship has not been studied between the
Bingwen Wang +5 more
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