NDLI: Morphology, crystal structure and hydration of calcined and modified anhydrite

Content Provider	Springer Nature Link
Author	Niu, Xiao qing Chen, Ji chun
Copyright Year	2014
Abstract	The effects of calcination and modification on the morphology (shapes and textures) and crystal structure of anhydrite powders were studied. The results show that, calcination at 100°C causes anhydrite to disintegrate into smaller crystals, accompanied by a slight increase in d-spacing. Without calcination and modification, the solidification time and curing time of anhydrite are 15 and 77 h, respectively. After the treatment, however, the solidification time and curing time are shortened significantly to 9.5 and 14 min, respectively. The compressive and flexural strengths of hydration products made from the treated anhydrite reach 10.2 and 2.0 MPa, respectively. The much shorter solidification and curing time make it possible to use anhydrite as a building and construction material.
Starting Page	1028
Ending Page	1032
Page Count	5
File Format	PDF
ISSN	16744799
Journal	International Journal of Minerals, Metallurgy, and Materials
Volume Number	21
Issue Number	10
e-ISSN	1869103X
Language	English
Publisher	University of Science and Technology Beijing
Publisher Date	2014-10-03
Publisher Place	Beijing
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	anhydrite morphology crystal structure curing hydration calcination modification Materials Science Metallic Materials Characterization and Evaluation of Materials Ceramics, Glass, Composites, Natural Methods Surfaces and Interfaces, Thin Films Tribology, Corrosion and Coatings
Content Type	Text
Resource Type	Article
Subject	Materials Chemistry Mechanics of Materials Metals and Alloys Geochemistry and Petrology Mechanical Engineering

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