کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6712030 | 1428723 | 2018 | 13 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Hydration, shrinkage, and durability of ternary binders containing Portland cement, limestone filler and metakaolin
ترجمه فارسی عنوان
هیدراتاسیون، انقباض و دوام دارنده های ترمیمی شامل سیمان پرتلند، پرکننده سنگ آهک و متاکائولین
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کلمات کلیدی
طول عمر انقباض، پرکننده سنگ آهک، متاکائولین، استحکام، اتصال دهنده های سه جانبه،
موضوعات مرتبط
مهندسی و علوم پایه
سایر رشته های مهندسی
مهندسی عمران و سازه
چکیده انگلیسی
A partial replacement of the clinker by latent hydraulic or pozzolanic materials is encouraged due to environmental and specific technical requirements. Such substitution remains limited to a relatively low level (less than 30% by mass of cementitious materials). An experimental research work was carried out on mortars made with binary and ternary binders (Portland cement; metakaolin; limestone filler) to reach 45% total replacement. In order to investigate the activating effect of reduced water-to-cement ratio, two series of mixtures were designed with W/C0 of 0.42 and 0.5. Their heat of hydration, portlandite content, shrinkage, porosity, and carbonation were monitored. The tests were performed to understand the evolution of their relative strength (activity index) and durability parameters. The strength development of mortars with ternary binders was found to depend on metakaolin properties, including manufacturing process and particle size distribution. Reducing W/C0 ratio accelerated pozzolanic reaction and allowed improving early-age strength and durability parameters.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Construction and Building Materials - Volume 183, 20 September 2018, Pages 114-126
Journal: Construction and Building Materials - Volume 183, 20 September 2018, Pages 114-126
نویسندگان
Gildas Medjigbodo, Emmanuel Rozière, Kevin Charrier, Laurent Izoret, Ahmed Loukili,