کیفیت  آجر کامل و خصوصیات فنی
ترجمه نشده

کیفیت آجر کامل و خصوصیات فنی

عنوان فارسی مقاله: تاثیر مقدار ذرات اندازه شن و ماسه بر کیفیت آجر کامل و خصوصیات فنی
عنوان انگلیسی مقاله: Sand size particle amount influence on the full brick quality and technical properties
مجله/کنفرانس: مصالح ساختمانی و ساخت و ساز – Construction and Building Materials
رشته های تحصیلی مرتبط: مهندسی عمران
گرایش های تحصیلی مرتبط: سازه
کلمات کلیدی فارسی: خشت، شن و ماسه، اندازه گیری توزیع دانه بندی، آجر، ترک، تجزیه و تحلیل ترک
کلمات کلیدی انگلیسی: Clay، Sand، Granulometry، Bricks، Cracks، Crack analysis
نوع نگارش مقاله: مقاله پژوهشی (Research Article)
نمایه: Scopus – Master Journals List – JCR
شناسه دیجیتال (DOI): https://doi.org/10.1016/j.conbuildmat.2019.05.170
دانشگاه: Institute of Technical Physics, Faculty of Material Science and Applied Chemistry, Riga Technical University, P.Valdena 7, Riga, Latvia
ناشر: الزویر - Elsevier
نوع ارائه مقاله: ژورنال
نوع مقاله: ISI
سال انتشار مقاله: 2019
ایمپکت فاکتور: 4.686 در سال 2018
شاخص H_index: 129 در سال 2019
شاخص SJR: 1.522 در سال 2018
شناسه ISSN: 0950-0618
شاخص Quartile (چارک): Q1 در سال 2018
فرمت مقاله انگلیسی: PDF
تعداد صفحات مقاله انگلیسی: 8
وضعیت ترجمه: ترجمه نشده است
قیمت مقاله انگلیسی: رایگان
آیا این مقاله بیس است: خیر
آیا این مقاله مدل مفهومی دارد: ندارد
آیا این مقاله پرسشنامه دارد: ندارد
آیا این مقاله متغیر دارد: ندارد
کد محصول: E12380
رفرنس: دارای رفرنس در داخل متن و انتهای مقاله
فهرست انگلیسی مطالب

Abstract


1-Introduction


2-Material and methods


3-Results and discussion


4-Conclusion


Declaration of Competing Interest


Acknowledgments


References

نمونه متن انگلیسی مقاله

Abstract


In this study was used three different clay types and sand from the local quarry in Latvia. Clay mass mixes were made by adding sand in each mix and remaining the same amount of clay proportion. Sand size particle amount was increased from 33% to 59%. Samples were extruded with laboratory extruded as full brick samples. After formation samples were dried at 105 C and fired at 1000 C for 1 h. Water absorption, shrinkage, density, compressive strength were measured after the firing process. The crack amount was determinate by the digital camera after drying process and after firing process. Fired sample cracks start/end points were analysed with SEM-EDX.


Introduction


In many quarries clay granulometry variates in the wide range from very plastic clay with high clay size particle amount till sandy clay with high silt and sand-size particle amount. It is very important to control and adjust it with additives for production, to minimize varieties in granulometric because that can affect product quality and properties after firing [1]. Quality control must be done by analyzing granulometric data, clay mass moisture content during forming, drying shrinkage, firing shrinkage, water absorption, and other properties. In production, a quality control process is important that ensures that a good product reaches the customer and meets his needs, like thermal conductivity, strength, home environment and visual aspect [2,3]. Quality of the brick must be controlled through all manufacturing process, starting with material testing, formed green brick, dried brick and fired brick. One of the quality tests is visual inspection – brick cracking. First cracks can be visually observed after drying. Drying rate must be set right to not cause too fast temperature increase. In the manufacturing process drying usually happens in the drying tunnel. Brick temperature is increased 30–۸۰ C to evaporate free water from bricks. A drying tunnel is split into 3 parts. In the first part of the tunnel, a brick air temperature is about 50 C and relative humidity is around 80%. In the second part of the tunnel, drying air temperature is kept constant and relative humidity is starting to fall due to a brick moisture decrease and tunnel fans that suck out wet air from the drying zone. In the third part is a temperature of brick is around 80 C and moisture content is around 3% [4].

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