Evaluation of pozzolanic activity and physico-mechanical characteristics in metakaolin-lime pastes

Bakolas  A; Aggelakopoulou  E; Moropoulou  AAnagnostopoulou  S

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Evaluation of pozzolanic activity and physico-mechanical characteristics in metakaolin-lime pastes

机译：Evaluation of pozzolanic activity and physico-mechanical characteristics in metakaolin-lime pastes

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In order to evaluate the pozzolanic activity of metakaolin, several pastes were prepared, by mixing metakaolin with hydrated lime, in different ratios. The pastes were stored in standard conditions (kH=9%+/- 1%, T=25 +/- 1 degrees C) and evaluated using thermal analysis (DTA/TG), X-ray diffraction (XRD), compressive strength tests and mercury intrusion porosimetry (MIP), in time. The obtained results revealed that the compounds formed are CSH, C(2)ASH(8) and C(2)A (C) over barH(11) while C(4)AH(13) was not detected up to 270 days of curing. The calcium hydroxide consumption increases as the initial amount of the metakaolin in the paste augments. The maximum strength development is obtained for metakaolin/lime ratio:1.

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《Journal of thermal analysis and calorimetry》 |2006年第1期|157-163|共7页
作者
Bakolas A; Aggelakopoulou E; Moropoulou AAnagnostopoulou S;
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Natl Tech Univ Athens, Sch Chem Engn, Sect Mat Sci & Engn, GR-15773 Athens, Greece;

alliativecare.org;

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正文语种英语
中图分类分析化学;
关键词
hydration phases; lime; metakaolin; pozzolanic activity; thermal analysis; PORE-SIZE DISTRIBUTION; CEMENT-QUARTZ PASTES; REACTION-KINETICS; HYDRATION; MK; 60-DEGREES-C; TEMPERATURE; KAOLINITE; MK/LIME;

Evaluation of pozzolanic activity and physico-mechanical characteristics in metakaolin-lime pastes

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