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العنوان
Properties And Fields Of Using Of Cellular Concrete \
المؤلف
Zidan, Soha Abd El-Star Taha.
هيئة الاعداد
باحث / Soha Abd Elstar Taha Zidan
مشرف / Monir M.Kamal
مشرف / Mohammed A. Safan
مشرف / Fatma Elzhraa M.Eid
الموضوع
Lightweight Concrete. Precast Concrete. Strength Of Materials.
تاريخ النشر
2013.
عدد الصفحات
1 computer disc :
اللغة
الإنجليزية
الدرجة
ماجستير
التخصص
الهندسة المدنية والإنشائية
تاريخ الإجازة
23/5/2013
مكان الإجازة
جامعة المنوفية - كلية الهندسة - Civil Engineering Department.
الفهرس
Only 14 pages are availabe for public view

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from 172

Abstract

Autoclaved cellular concrete (ACC), also known as autoclaved aerated concrete (AAC) or autoclaved lightweight concrete (ALC). It is a lightweight, precast building material that simultaneously provides structure, insulation and resistance fire.( ACC) products include blocks, wall panels, floor, roof panels, and lintels.(ACC) is a lightweight concrete with no coarse aggregate produced by mixing portland cement, lime, aluminum powder and water with large proportion of silicarich material as fly ash. Typically, fly ash can account for 50% to 70% of the solid material that makes up (ACC) cement, and lime make up the difference. Avery small amount of aluminum powder is introduced to the slurry mix to create the hydrogen bubbles that improve the (ACC) quality to this product. This research represents the result of the physical and mechanical properties of (ACC). The properties of the hardened concrete included compressive strength, splitting tensile strength, flexural strength, impact resistance under flexural dynamic load and bond strength. The physical properties included unit weight, sulfate resistance, fire effect, real density, water absorption , porosity and thermal conductivity measurements and. The results indicated that the fly ash could be used as replacement by weight of fine or coarse aggregate to produce concrete with suitable compressive strength. The temperature effect on the autoclaved cellular concrete is significant for more than 600°C. from the results of measurements it is clear that the sound absorption of mortar altered with cotton fiber achieved good sound absorption due to the increase of porosity, the thermal conductivity of samples is low relative to the conductivity of ordinary concrete which reach to 1.2 w/moC, and so a sample has a good value to be thermal insulation, also the failure mode of the tested samples for different types of loads, static load and dynamic loads are observed. Recommendations for practical applications were summarized and suggestions for future research works in the field of the autoclaved cellular concrete.