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Influence of cellulose ethers on the kinetics of early Portland cement hydration

Обложка книги Influence of cellulose ethers on the kinetics of early Portland cement hydration

Influence of cellulose ethers on the kinetics of early Portland cement hydration

The phase-specific influence of cellulose ether (CEs) on Portland cement hydration was investigated in-situ, using synchrotron X-ray diffractometry. CE-caused retardation can be traced to the polymer‘s adsorption behaviour. The adsorption decreases in following order: silicates and their hydrates (high), sulfates (low), ettringite (zero). The retarding effect is strong on silicates, moderate on sulfates and unspecific on alluminates.
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