مقاله انگلیسی رایگان در مورد تنوع و محتوای سنگدانه درشت زغال سنگ – الزویر ۲۰۱۹
مشخصات مقاله | |
ترجمه عنوان مقاله | اثرات تنوع و محتوای سنگدانه درشت کلوخه زغال سنگ بر خصوصیات مکانیکی بتن |
عنوان انگلیسی مقاله | Effects of the variety and content of coal gangue coarse aggregate on the mechanical properties of concrete |
انتشار | مقاله سال ۲۰۱۹ |
تعداد صفحات مقاله انگلیسی | ۱۰ صفحه |
هزینه | دانلود مقاله انگلیسی رایگان میباشد. |
پایگاه داده | نشریه الزویر |
نوع نگارش مقاله |
مقاله پژوهشی (Research Article) |
مقاله بیس | این مقاله بیس نمیباشد |
نمایه (index) | Scopus – Master Journals List – JCR |
نوع مقاله | ISI |
فرمت مقاله انگلیسی | |
ایمپکت فاکتور(IF) |
۴٫۶۸۶ در سال ۲۰۱۸ |
شاخص H_index | ۱۲۹ در سال ۲۰۱۹ |
شاخص SJR | ۱٫۵۲۲ در سال ۲۰۱۸ |
شناسه ISSN | ۰۹۵۰-۰۶۱۸ |
شاخص Quartile (چارک) | Q1 در سال ۲۰۱۸ |
مدل مفهومی | ندارد |
پرسشنامه | ندارد |
متغیر | ندارد |
رفرنس | دارد |
رشته های مرتبط | مهندسی عمران |
گرایش های مرتبط | سازه |
نوع ارائه مقاله |
ژورنال |
مجله / کنفرانس | مصالح ساختمانی و ساخت و ساز – Construction and Building Materials |
دانشگاه | College of Civil Engineering, Liaoning Technical University, Fuxin 123000, China |
کلمات کلیدی | کلوخه زغال سنگ، کلوخه احتراق خود به خودی، کلوخه سنگی، خصوصیات استحکام، منحنی تنش و کرنش، ریز ساختار |
کلمات کلیدی انگلیسی | Coal gangue، Spontaneous combustion gangue، Rock gangue، Strength characteristics، Stress-strain curve، Microstructure |
شناسه دیجیتال – doi |
https://doi.org/10.1016/j.conbuildmat.2019.05.176 |
کد محصول | E12398 |
وضعیت ترجمه مقاله | ترجمه آماده این مقاله موجود نمیباشد. میتوانید از طریق دکمه پایین سفارش دهید. |
دانلود رایگان مقاله | دانلود رایگان مقاله انگلیسی |
سفارش ترجمه این مقاله | سفارش ترجمه این مقاله |
فهرست مطالب مقاله: |
Abstract ۱٫ Introduction ۲٫ Experimental program ۳٫ Results and analysis ۴٫ Establishment of a uniaxial compression-based full stress-strain curve model of coal gangue coarse aggregate concrete ۵٫ Conclusion Conflict of Interest Acknowledgements References |
بخشی از متن مقاله: |
Abstract
Concrete were prepared by replacing natural gravel (N) with spontaneous combustion gangue (S) or rock gangue (R) at intervals of 25%. Mechanical tests were carried out and the microstructural features of the concrete were characterized. Failure modes and strength of different concrete are various, and the compressive strength of the concrete meets the design requirements of C30 strength grade concrete. The axial compression failure mode of R coarse aggregate concrete (RAC) was shear failure. As the S replacement percentage increased, the axial compression failure mode of S coarse aggregate concrete (SAC) transformed from shear failure to longitudinal splitting failure. The ITZ of SAC is the best; as the replacement percentage increased, the peak stress and slope of the rising section of the stress-strain curves of RAC and SAC decreased, and the peak strains increased. Finally, compressive stress-strain curve prediction models for coal gangue coarse aggregate concrete were suggested. Introduction China is a large country with coal as its main energy source. The annual output of coal gangue solid waste, which is produced during coal production, amounts to hundreds of millions of tons. A large amount of coal gangue is stored for a long time, and such storage can destroy the ecological balance and harm the environment. Statistics show that among the more than 2100 counties in China, extensive coal gangue accumulation has been reported in more than 1200 counties. Currently, the amount of accumulated coal gangue is approximately 4.5 billion tons, and there are more than 1600 coal gangue mounds that occupy approximately 15,000 ha of land; moreover, the quantity of gangue accumulation is increasing at a rate of 1.5–۲۰۰ million tons per year [1,2]. With the rapid development of infrastructure construction in China, raw materials such as sand and stone, which are used in concrete, the most common engineering materials, must be urgently supplied. In the summer of 2018, the prices of sand and stone in the Pearl River Delta (China) area exceeded 300 RMB/ m3 , resulting in a price increase of 700 RMB/m3 for C30 ready-mixed concrete, which has caused panic in the industry [3,4]. |