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Microstructure of a slag-cement paste determined by small angle neutron scattering

Version 2 2024-06-05, 03:01
Version 1 2022-06-14, 08:48
journal contribution
posted on 2024-06-05, 03:01 authored by Laurie AldridgeLaurie Aldridge, WK Bertram, TM Sabine, A Ioffe
ABSTRACTSmall angle neutron scattering from hydrating cement paste was compared to that from a paste made of a blend of cement and ground granulated blast furnace slag. The scattering measurements were used to determine the average size of the scattering particles during hydration. Their rate of growth was monitored in-situ over the first 40 hours of hydration. There was little difference in the scattering spectra, showing that the scattering particles in paste containing slag blend or cement were of similar size. At the beginning of hydration the particle radii were about 250 nn and after 14 days they had grown to over 600nm.Estimates of particle sizes are critically dependent on the amount of multiple scattering. Therefore the amount of multiple scattering of the sample must be taken into account before making comparisons between the sizes of particles of different matrices.

History

Journal

Materials Research Society Symposium - Proceedings

Volume

506

ISSN

0272-9172

eISSN

1946-4274

Language

en

Publication classification

CN.1 Other journal article

Title of proceedings

Materials Research Society Symposium - Proceedings

Publisher

Springer Science and Business Media LLC

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