انا طالب دكتوراه بماليزيا وقد اعدت مقترح حول السلوك الإنشائي للكمرات والاعمدة المصنوعة من الرمل الكلسي مسبق الصنع وذلك بما متوفر من مواد محلية بليبيا وكما مبين ادناه. ولكن لأسف لم اجد مراجع كافيه حول هذا الموضوع . عليه وبارك الله فيكم من لديه فكره عن الموضوع ان يرسل لي بعض البحوث او ورقات بحثية او جورنل الخاصة بذلك عربي او انجليزي على البريد**************** .
The structural behaviour of precast sand-limesegments as beams and columnsThe sand-lime bricks materials that expected to be manufacture in Libya and it depend on local raw materials. Making sand-lime bricks are important materials as substitution of stone bricks and concrete bricks. The most important two materials in manufacturing sand-lime bricks are sand and high quality lime. These materials are located in various areas of Libya and the most important region that contained these materials is "Alnam" near of the Tripoli city with "Zlav" sand that covering the most area between "Sabha" and "Brac" city. The lime from 7-10% out of raw materials rate in the manufacturing .Technology of manufacturing is relevant simple since there is quality observation with suitable materials for these manufactures the most important part in manufacturing is the mixture and processing by steam and pressure.The sand-lime brick maintained on the external appearance and shape for many years where it is noted that the types of bricks have been used since 60 years in a number of countries still retain the ability to stand high and resistance to atmospheric changes, although it produced a less sophisticated technology than is currently available.
The sand-lime brick distinguishes from other most construction materials is the Compressive strength, that high up to 25MPa during the 5-7 hours of its existence within the autoclaves.
The new topic in this area we can using this material to cast bricks as a segment precast units and reinforced with natural and artificial materials to make beams and columns and compared with the usual structures,
من مواضيع ابو نور الهدى :
التعديل الأخير تم بواسطة anass81 ; 2009-06-16 الساعة 08:55 PM