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Cover Image, Volume 100, Issue 3
Publication year - 2017
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Reports
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/jace.14500
Subject(s) - cover (algebra) , anhydrous , cementitious , cement , materials science , polymer , dispersant , polymer science , chemical engineering , chemistry , composite material , organic chemistry , engineering , mechanical engineering , physics , dispersion (optics) , optics
The scheme represents the formation of cementitious hydrates from the reaction of anhydrous cement with water and how the kinetics of this reaction can be affected by different types of additives, in particular by comb‐copolymers illustrated in the center of this scheme. Such polymers are widely used as dispersants in concrete to enhance its fluidity. More recently, they are playing an increasing role in enabling the production of concrete with a low environmental impact. However, the delay that they almost invariably cause to cement hydration represents a limitation to their use and to the development of alternative binding materials. The paper by Marchon et al. addresses this crucial scientific question and paves the way to the molecular design of optimized chemical admixtures. Cover Illustration by Fabian Rüdy and Stefan auf der Maur, Switzerland.