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فرآوری مصالح ساختمانی آجر با خواص مکانیکی ویژه با استفاده از مواد بازیافتی | ||
نشریه مهندسی عمران امیرکبیر | ||
مقاله 1، دوره 54، شماره 6، شهریور 1401، صفحه 2067-2080 اصل مقاله (1008.68 K) | ||
نوع مقاله: مقاله پژوهشی | ||
شناسه دیجیتال (DOI): 10.22060/ceej.2021.19548.7199 | ||
نویسنده | ||
بهزاد مهدی خانی* | ||
عضو هیات علمی پژوهشگاه استاندارد | ||
چکیده | ||
هدف این مقاله مطالعه برخی ویژگی های مصالح ساختمانی ساخته شده با گچ (تجاری- CGP و بازیافت شده- RGP) و ضایعات (سرامیک قرمز- RC و چینی-PW) با استفاده از بارگذاری تحت فشار (فشار پرس) قبل از سخت شدن مواد است. آجرها با ترکیب جرم جامدی ساخته می شوند که حاوی 50% وزنی ماده چسبنده و %50 وزنی مواد ضایعاتی و نسبتی از مقدار خیلی کمی آب / پودر خشک (22/0) است. بر اساس این یافته ها مواد ضایعاتی صنعتی مختلفی به صورت مخلوط مانند پلاستر گچی بازیافت شده، و همچنین مواد تهیه شده از ضایعات سرامیک قرمز (RC) و ضایعات چینی (PW) وجود دارند. در این تحقیق نمونههای مورد آزمایش قبل از زمان گیرش با استفاده از دستگاه پرس تک محوری (10 kN) قالبگیری شدند. پس از عملآوری و سخت شدن نمونهها مقاومت فشاری و خمشی، تخلخل و ریزساختار نمونهها بررسی شد. نتایج مقاومت فشاری در محدوده MPa12 تا MPa35 بود. نسبت آب / جرم جامد و نیروی اعمالی پرس تک محوری قبل از زمان گیرش در کاهش تخلخل نمونهها تاثیر زیادی داشته و خواص مکانیکی آنها افزایش پیدا کرد. نتایج به دست آمده نشان می دهند این افزایش مواد ضایعاتی مذکور سبب ایجاد مصالح ساختمانی آجر با کیفیت بهتر خواهد شد. | ||
کلیدواژهها | ||
گچ بازیافت شده؛ ضایعات سرامیک بدنه قرمز؛ ضایعات چینی؛ مقاومت فشاری | ||
موضوعات | ||
کامپوزیت؛ محیط زیست؛ مواد و مصالح | ||
عنوان مقاله [English] | ||
Processing of brick building materials with special mechanical properties using recycled materials | ||
نویسندگان [English] | ||
Behzad Mehdikhani | ||
faculty of member standard research institute | ||
چکیده [English] | ||
The purpose of this paper is to study some properties of building materials made with plaster (commercial - CGP and recycled - RGP)and waste (red - RC, and porcelain - PW ceramics)using Press pressure. The brick is made with a solid mass composition containing 50 wt% of cohesive material and 50 wt% of waste material and is proportional to the amount of dry water/dry powder (0.22). According to these findings, there are various industrial waste materials such as plaster recycling, as well as materials from red (RC) and porcelain waste (PW) waste. In this study, specimens were cast before using a single-core inquiry (10 kN)before obtaining a uniaxial compressive strength (10 kN). After treatment and characterization of specimens, the stress and flexural strength, porosity and microstructure of samples were investigated. The results of the compressive strength were in the range of 12MPa to 35MPa. The ratio of solid water/mass and the applied force applied to the uniaxial compressive stress before getting caught in reducing the porosity of specimens had a significant effect on their mechanical properties. The results show that this increase in waste material will cause a better quality of brick building materials. | ||
کلیدواژهها [English] | ||
Recycled gypsum, Red body ceramic waste, Porcelain waste, Compressive strength | ||
سایر فایل های مرتبط با مقاله
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مراجع | ||
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