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عنوان فارسی مقاله: خواص انقباض بتن با استفاده از خاکستر کوره انفجار و شتاب دهنده مقاوم به یخ زدگی
عنوان انگلیسی مقاله: Shrinkage properties of concretes using blast furnace slag and frost-resistant accelerator
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: سیمان خاکستر کوره انفجار، شتاب دهنده مقاوم به یخ زدگی، انقباض، ترک خوردن، حجم منفذ
کلمات کلیدی انگلیسی: Blast furnace slag cement، Frost-resistant accelerator، Shrinkage، Cracking، Pore volume
نوع نگارش مقاله: مقاله پژوهشی (Research Article)
نمایه: Scopus – Master Journals List – JCR
شناسه دیجیتال (DOI): https://doi.org/10.1016/j.conbuildmat.2019.05.003
دانشگاه: School of Architecture, Kyungpook National University, Daegu, Republic of Korea
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: 9
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: E12372
رفرنس: دارای رفرنس در داخل متن و انتهای مقاله
فهرست انگلیسی مطالب

Abstract


1-Introduction


2-Experiment


3-Test results and discussion


4-Conclusion


Conflict of interest


Acknowledgments


References

نمونه متن انگلیسی مقاله

Abstract


This study investigated the shrinkage properties of concretes using blast furnace slag cement and frostresistant accelerator as a construction technology in environmental-load-reducing cold weather concretes. The investigation results showed that as the frost-resistant accelerator was added to both Ordinary Portland Cement (OPC) and Blast Furnace Slag Cement (BB), the effect on the properties of fresh concrete was reduced and the compressive strength was increased from an early age. In addition, the free shrinkage strain and cracking potential at the same age tended to increase and the study result verified that the crack generation was also fast in the restrained condition. Meanwhile, the study results verified that the length of both of OPC and BB tended to increase upon adding the frost-resistant accelerator. Pore volume <30 nm diameter, in particular, 20–۳۰ nm pore volume, and ink-bottle pore volume decreased such that the shrinkage volume increased, and the change in pore volume in this range was regarded as having a large effect on the shrinkage properties.


Introduction


The use of blast furnace slag cements has been expanded to reduce environmental load or employ industrial wastes efficiently. More recently, low heat and shrinkage-reduced blast furnace cement, which has a high content ratio of blast furnace slag, and Energy CO2 Minimum (ECM) cements that achieve the Class C slag content ratio have been studied, but their use has been limited practically [1–3]. Although blast furnace slag cements have many advantages such as low heat, increased long-term strength, flame interruption performance, and suppression of the alkali–aggregate reaction, they also have drawbacks such as delayed early strength development and early frost damage during winter construction due to high temperature dependence, which is why much care must be taken when using blast furnace slag [4]. When concretes are used in winter, it is important that the concretes do not freeze until sufficient strength has been developed to prevent early frost damage due to the delayed strength development or freezing, and heat curing via temporary enclosure and use of a heater is typical [5–8]. However, the use of a temporary enclosure for concrete curing may cause CO2 emissions due to the heater or warm curing in a space with extremely bad heat efficiency, which is why the use of a frost-resistant accelerator has increased to prevent early frost damage [9–14].

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