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Mechanical properties of ultra high performance concrete produced in Gaza Strip
العناوين الأخرى
الخواص الميكانيكية للخرسانة فوق عالية الأداء المنتجة في قطاع غزة
مقدم أطروحة جامعية
مشرف أطروحة جامعية
Arafa, Muhammad
Shihadah, Samir
الجامعة
الجامعة الإسلامية
الكلية
كلية الهندسة
القسم الأكاديمي
قسم الهندسة المدنية
دولة الجامعة
فلسطين (قطاع غزة)
الدرجة العلمية
ماجستير
تاريخ الدرجة العلمية
2009
الملخص الإنجليزي
The aim of this research is to produce Ultra High Performance Concrete (UHPC) in Gaza strip, using materials which are available at the local markets.
Different trial mixes are used to obtain a compressive strength exceeding 120 MPa.
The research includes the use of mineral admixture (silica fume), basalt aggregate, quartz sand, and special type of fine aggregate (crushed quartz) The mechanical properties of UHPC are studied, i.e., compressive strength, split cylinder strength, and flexural strength.
The effect of mixing sequence on the main properties of UHPC, i.e., compressive strength, density, and slump is also investigated in this research work.
The effect of adding different amounts of silica fume and crushed quartz on main properties of UHPC, i.e., compressive strength, density, and slump was investigated.
The test results revealed that it is possible to produce UHPC in Gaza Strip, with compressive strength in excess of 120 MPa using materials which are available at the local markets, if these are carefully selected and properly mixed in such a way to optimize grain size distribution.
The equations developed in this research for prediction of splitting strength and flexural strength from compressive strength give close results compared with the relationships recommended in available literature at 28 days age, but have different values at early age of UHPC.
The results showed that adding 40 % of the quantity of superplastisizer to the UHPC mixture in the first stage of the mixing to all dry materials (cement, aggregates, and silica fume) avoid agglomeration of silica fume and have pronounced effect on both slump and compressive strength Based on the results of this research, the optimum percentage of silica fume necessary for producing UHPC is about 15.5 % of cement weight.
The results also, showed that the increase in ultra-fine dosage increases the cube compressive strength because the finer particles fill up the hollow spaces between the cement and coarser grains.
التخصصات الرئيسية
الموضوعات
عدد الصفحات
107
قائمة المحتويات
Abstract.
Table of contents.
Chapter one : Introduction.
Chapter two : Literature review.
Chapter three : Constituent materials and experimental program.
Chapter four : Test results and discussion.
Chapter five : Conclusions and recommendations.
نمط استشهاد جمعية علماء النفس الأمريكية (APA)
Qarmut, Mahmud. (2009). Mechanical properties of ultra high performance concrete produced in Gaza Strip. (Master's theses Theses and Dissertations Master). Islamic University, Palestine (Gaza Strip)
https://search.emarefa.net/detail/BIM-300486
نمط استشهاد الجمعية الأمريكية للغات الحديثة (MLA)
Qarmut, Mahmud. Mechanical properties of ultra high performance concrete produced in Gaza Strip. (Master's theses Theses and Dissertations Master). Islamic University. (2009).
https://search.emarefa.net/detail/BIM-300486
نمط استشهاد الجمعية الطبية الأمريكية (AMA)
Qarmut, Mahmud. (2009). Mechanical properties of ultra high performance concrete produced in Gaza Strip. (Master's theses Theses and Dissertations Master). Islamic University, Palestine (Gaza Strip)
https://search.emarefa.net/detail/BIM-300486
لغة النص
الإنجليزية
نوع البيانات
رسائل جامعية
رقم السجل
BIM-300486
قاعدة معامل التأثير والاستشهادات المرجعية العربي "ارسيف Arcif"
أضخم قاعدة بيانات عربية للاستشهادات المرجعية للمجلات العلمية المحكمة الصادرة في العالم العربي
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