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العنوان
Developing a novel geopolymer using marble dust /
الناشر
Bsma Abdalla Abdelgadir Osman ,
المؤلف
Bsma Abdalla Abdelgadir Osman
هيئة الاعداد
باحث / Bsma Abdalla Abdelgadir Osman
مشرف / Osama Abd EL-Ghafour Hodhod
مناقش / Amr Amin EL-Hefnawy
مناقش / Ahmed Maher Ragab
تاريخ النشر
2019
عدد الصفحات
75 P. :
اللغة
الإنجليزية
الدرجة
الدكتوراه
التخصص
الهندسة المدنية والإنشائية
الناشر
Bsma Abdalla Abdelgadir Osman ,
تاريخ الإجازة
5/11/2019
مكان الإجازة
جامعة القاهرة - كلية الهندسة - Structural Engineering
الفهرس
Only 14 pages are availabe for public view

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from 99

Abstract

The thesis covers the study of the effect of marble dust on the properties of the geopolymer paste .The use of marble dust, fly ash and silica fume in different percentage with alkaline activator were used to study the mechanical properties (compressive strength , flexural strength and tensile strength) and durability (water absorption) of geopolymer paste .The results showed that the highest compressive strength (237.8 Kg/cm2)was obtained when using 70% of fly ash and 30% of the marble dust and w/b = 28% . In addition , it was observed that the use of w/b ratio = 0.28 in the formation of geopolymer paste containing 90% fly ash and 10% marble dust gave the highest value of the ultimate flexural load (245 kg). The highest value of tensile strength( 14.9 Kg/cm2) was obtained when using the percentages of (45% , 45% , 10%) for fly ash , marble dust , and silica fume , respectively when w/b ratio = 33%.In addition, the results were verified by SEM imaging