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فرآیند مکانیکی و خصوصیات سیمان پرتلند با افزودن آلکانولامین های جدید

فرآیند مکانیکی و خصوصیات سیمان پرتلند با افزودن آلکانولامین های جدید

عنوان انگلیسی: The mechanochemical process and properties of Portland cement with the addition of new alkanolamines
سال نشر: ۲۰۱۵
نویسنده: Weifeng Li,Suhua Ma,Yueyang Hu,Xiaodong Shen
تعداد صفحه فارسی: ۱ – تعداد صفحه انگلیسی: ۷
دانشگاه:
نشریه: Process Safety and Environmental Protection
کیفیت ترجمه: ترجمه پلاس

چکیده

Abstract

Highlights•DEIPA and EDIPA improve the fineness of Portland cement.•DEIPA and EDIPA are useful to increase the flowability of Portland cement.•DEIPA significantly shortens the setting times of Portland cement.•DEIPA and EDIPA increase compressive strengths of both 3 days and 28 days.•THEED just provides a greater contribution to the late compressive strength.AbstractGrinding aids have been researched and used for decades to reduce energy consumption in the process of cement production. In this work, the effects of new alkanolamines, such as N,N-bis(2-hydroxyethyl)isopropanolamine (DEIPA), N,N-bis(2-hydroxypropyl)-2-aminoethanol (EDIPA) and N,N,N′,N′-tetrakis(2-hydroxyethyl)ethylenediamine (THEED), on the grinding, flowability and physical properties of Portland cement were investigated. The results indicated that DEIPA and EDIPA could significantly decrease the sieve residues (45 μm), and improve the flowability of the cement powder. They could decrease the compressibility and the magn
۱۹۰,۰۰۰ ریال – خرید
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