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    • Beta-dicalcium silicate dissolution data by digital holographic microscopy

    Metadata Updated: April 11, 2024

    These data are supplemental data that include digital holographic microscopy measurements of nanoscale surface topography changes occurring during the dissolution of beta-dicalcium silicate in water and in water-ethanol mixtures. The dissolution flux in flowing solutions depends on the water activity to an empirically determined power of 1.7. The heterogeneous distribution of reactive surface sites (e.g., crystalline defects) at the surface leads to a distribution of local fluxes. Accounting for the nominally non-reactive and slowly reactive surface sites, the median of the macroscopic dissolution flux distribution is -0.64 umol m-2 s-1. Ex situ X-ray photoelectron spectroscopy indicates that the calcium-to-silicon ratio near the surface decreases by about 10 % after dissolution has taken place for more than 30 minutes.

    Access & Use Information

    Public: This dataset is intended for public access and use. License: See this page for license information.

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    Dates

    Metadata Created Date March 11, 2021
    Metadata Updated Date April 11, 2024
    Data Update Frequency irregular

    Metadata Source

    Harvested from NIST

    Other Data Resources

    Additional Metadata

    Resource Type Dataset
    Metadata Created Date March 11, 2021
    Metadata Updated Date April 11, 2024
    Publisher National Institute of Standards and Technology
    Maintainer
    Identifier 66AF4AFEA96764C4E0532457068100261895
    Language en
    Data Last Modified 2018-01-25 00:00:00
    Category Materials:Concrete/cement, Materials:Materials characterization
    Public Access Level public
    Data Update Frequency irregular
    Bureau Code 006:55
    Metadata Context https://project-open-data.cio.gov/v1.1/schema/data.json
    Schema Version https://project-open-data.cio.gov/v1.1/schema
    Catalog Describedby https://project-open-data.cio.gov/v1.1/schema/catalog.json
    Harvest Object Id 6e7c91ba-21af-4e0f-98b2-203bf105552c
    Harvest Source Id 74e175d9-66b3-4323-ac98-e2a90eeb93c0
    Harvest Source Title NIST
    Homepage URL https://data.nist.gov/od/id/66AF4AFEA96764C4E0532457068100261895
    License https://www.nist.gov/open/license
    Program Code 006:045
    Source Datajson Identifier True
    Source Hash 0d48e0929d41b63ac743f21ee837529925852b396e224d93a7f759b9cef0f114
    Source Schema Version 1.1

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