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Showing 1 to 5 of 5 for “"Calcium carbonate polymorphs"”.
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ΣΧΗΜΑΤΙΣΜΟΣ ΘΕΙΙΚΟΥ ΑΣΒΕΣΤΙΟΥ ΣΕ ΥΔΑΤΙΚΑ ΔΙΑΛΥΜΑΤΑ
IN THIS THESIS, WE STUDY THE PRECIPITATION OF CALCIUM SULFATE FROM AQUEOUS SOLUTIONS AT SUPERSATURATIONS SUFFICIENT FOR SPONTANEOUS PRECIPITATION AND IN THE TEMPERATURE RANGE BETWEEN 20 -80 C. AT THESE CONDITIONS, THE ONLY PHASE FORMING WAS CALCIUM SULFATE DIHYDRATE. THE INDUCTION PERIODS AND THE …
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The formation of carbonate minerals in laboratory and environmental settings
… processes driving the formation of sedimentary carbonate minerals. While some work has been done exploring the formation of carbonate minerals via microbial sulfate reduction, less attention has been given to the detailed processes involved in this microbially induced carbonate mineral formation …
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Examination of hydrated and accelerated carbonated cement-heavy metal mixtures
… cement matrices. The pastes and suspensions of calcium oxide, calcium hydroxide, pure cement phases ( 38, C}A, C4AF, Ci 2A7 and CA) and Portland cement with or without heavy metals (Zn2+ , Pb2+, Cu2+ and Cr3+) were examined by a number of analytical techniques. These techniques were X-ray powder …
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Geochemical Insights into Earth Materials from Quantum Mechanical Computation
… to understanding geochemical proxies in biogenic carbonates, relevant to environments in past and present oceans at the Earth’s surface, through to volatile components in the Earth’s deeper interior, in particular a study of the nature of water in the silicate mantle, through to the nature of …
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Effect of Bacterial Strain on MICP and its Application for the Erosion Control of Fine Sands
… In this context, microbial induced calcium carbonate (CaCO3) precipitation (MICP) could be used to enhance the erosion performance of soils. This research investigates the influence of the CaCO3 microstructure on the macromechanical erosion response of fine sands by combining …