کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
257483 503591 2014 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Compressive strength and microstructural analysis of fly ash/palm oil fuel ash based geopolymer mortar under elevated temperatures
ترجمه فارسی عنوان
استحکام فشاری و تجزیه و تحلیل میکرو سازه ملات ژئوپلیمر مبتنی بر خاکستر و روغن نخل تحت دمای بالا
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی عمران و سازه
چکیده انگلیسی


• POFA/FA based geopolymer mortar gain strength by subjecting to elevated temperature up to 500 °C.
• Increasing of POFA content expedite the start of micro-pores formation due to high temperatures.
• Increasing in POFA content delays the temperature of maximum strength.

This paper presents the effects of exposing palm oil fuel ash (POFA)/fly ash (FA) based geopolymer mortar to elevated temperatures at early stage in terms of microstructural and compressive strength. Combination of sodium silicate and sodium hydroxide is used as activator. The development of compressive strength of POFA/FA based geopolymers mortar was investigated using XRF, XRD, TGA/DTG, and FESEM. It was observed that replacement of the 0–100% of POFA in FA based geopolymer mortar expedite the start of micro-pore formation due to exposure to high temperatures and shift the strength peak from 300 °C to 500 °C.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Construction and Building Materials - Volume 65, 29 August 2014, Pages 114–121
نویسندگان
, , , , ,