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Interactions Between Cement Minerals and Hydroxycarboxylic‐Acid Retarders: IV, Morphology of the Aluminosalicylate Complex *
Author(s) -
DIAMOND SIDNEY
Publication year - 1973
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/j.1151-2916.1973.tb12505.x
Subject(s) - crystallite , equiaxed crystals , morphology (biology) , hexagonal crystal system , scanning electron microscope , cement , crystallography , chemical engineering , mineralogy , materials science , chemistry , metallurgy , microstructure , composite material , geology , paleontology , engineering
The morphology of the particles of aluminosalicylate complex precipitated from salicylic acid solution by tricalcium aluminate (C 3 A) was examined by scanning electron microscopy. Agglomerations of small (0.3 μm) equiaxed particles are precipitated from concentrated solutions and are accompanied by peculiar hexagonal prismatic “crystallites” with rounded ends thought to be Ca(OH) 2 . In more dilute solutions distorted hexagonal plates of C 4 AH 13 ‐type compounds are also formed.