کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
4913192 | 1428762 | 2017 | 11 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
An experimental study of different curing regimes on the mechanical properties and sorptivity of self-compacting mortars with fly ash and silica fume
ترجمه فارسی عنوان
یک مطالعه تجربی از رژیم های مختلف پخت بر روی خواص مکانیکی و سورمیتی از خمپاره های خود تراکم با خاکستر و سیلیکا
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کلمات کلیدی
ملات خود فشرده سیلیکا دود، خاکستر پرواز شرایط خشک شدن، خواص تازه، ویژگی های مکانیکی، جذابیت،
موضوعات مرتبط
مهندسی و علوم پایه
سایر رشته های مهندسی
مهندسی عمران و سازه
چکیده انگلیسی
This paper aims to investigate the effect of four different curing regimes namely; tap water curing (WC), wet sack curing (WSC), air curing (AC), and liquid paraffin wax curing (LPWC) and different curing times (3, 7, 28, 56 and 180Â days) on the mechanical properties of self-compacting Mortars (SCMs). Binary mixtures of SCMs were prepared by replacing Portland cement with 10%, 20%, and 30% by weight of C class fly ash (FA) and 6%, 10%, 14% by weight of silica fume (SF). In ternary mixes, provided that mineral additive ratio doesn't exceed 30% of cement, 10% of FA with 6%, %10, % 14 of SF and %20 of FA with %6, %10 of SF were produced. The water-to-binder (w/b) ratio ranges from 0.37 to 0.48. A sum of 12 different mixtures with 630Â kg/m3 binder were prepared to observe SCMs behaviour in fresh and hardened conditions. Mini slump flow diameter, viscosity and mini V-funnel flow time tests were performed to assess the fresh properties of SCMs containing FA and SF. Sorptivity tests were performed on cube specimens with the dimensions of 50Â ÃÂ 50Â ÃÂ 50Â mm. Compressive and flexural tensile strengths of the hardened mortars were measured at 3, 7, 28, 56 and 180Â days at different curing conditions. The best results for compressive strength at the end of 180Â d were determined with 10% FA in binary combination at water curing and with %10FAÂ +Â %6SF in ternary combination at wet sack curing. The best results for flexural strength at the end of 180Â d were determined with control samples at LPWC curing and with %10 SF in binary combination at LPWC. SF10 has the lowest sorptivity coefficient with w/b ratio of 0.40.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Construction and Building Materials - Volume 144, 30 July 2017, Pages 552-562
Journal: Construction and Building Materials - Volume 144, 30 July 2017, Pages 552-562
نویسندگان
Ahmet Benli, Mehmet KarataÅ, Yakup Bakir,