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Mechanical and Durability Characteristics of Latex-Modified Fiber-Reinforced Segment Concrete as a Function of Microsilica Content
المؤلفون المشاركون
Park, Chan-Gi
Lee, Joo-Ha
Kim, Woong
Oh, Ri-On
Kim, Mi-Sol
Jeon, Sang-Min
المصدر
العدد
المجلد 2019، العدد 2019 (31 ديسمبر/كانون الأول 2019)، ص ص. 1-10، 10ص.
الناشر
Hindawi Publishing Corporation
تاريخ النشر
2019-01-13
دولة النشر
مصر
عدد الصفحات
10
التخصصات الرئيسية
الملخص EN
This study evaluated the performance of latex-modified fiber-reinforced concrete (RC) segments as a function of the substitution level of microsilica and type of reinforced fiber, to address the problem of corrosion of steel segments and steel-reinforced fiber segments, which are commonly used to shield tunnel-boring machine (TBM) tunnels in urban spaces.
Our study compared macro synthetic, steel, and hybrid (macro synthetic fiber + polypropylene fiber) reinforcing fibers.
The substitution levels of microsilica used were 0, 2, 4, and 6%.
The target strengths were set at 40 and 60 MPa to test compressive strength, flexural strength, chloride ion penetration resistance, and impact resistance.
Testing of latex-modified and fiber-reinforced segment concrete showed that the compressive strength, flexural strength, and chloride ion penetration resistance increased with an increasing substitution level of microsilica.
These improvements were attributed to the densification of the concrete due to filling micropores with microsilica.
Micro synthetic fiber was more effective in terms of improved compressive strength, flexural strength, and chloride ion penetration resistance than steel fiber.
These results were due to the higher number of micro synthetic fibers per unit volume compared with steel fiber, which reduced the void volume and suppressed the development of internal cracks.
The optimal microsilica content and fiber volume fraction of micro synthetic fiber were 6% and 1%, respectively.
To evaluate the effects of the selected mixtures and hybrid fibers simultaneously, other mixing variables were fixed and a hybrid fiber mixture (combination of macro synthetic fibers and polypropylene fibers) was used.
The hybrid fiber mixture produced better compressive strength, flexural strength, chloride ion penetration resistance, and impact resistance than the micro synthetic fibers.
نمط استشهاد جمعية علماء النفس الأمريكية (APA)
Kim, Woong& Oh, Ri-On& Lee, Joo-Ha& Kim, Mi-Sol& Jeon, Sang-Min& Park, Chan-Gi. 2019. Mechanical and Durability Characteristics of Latex-Modified Fiber-Reinforced Segment Concrete as a Function of Microsilica Content. Advances in Civil Engineering،Vol. 2019, no. 2019, pp.1-10.
https://search.emarefa.net/detail/BIM-1116026
نمط استشهاد الجمعية الأمريكية للغات الحديثة (MLA)
Kim, Woong…[et al.]. Mechanical and Durability Characteristics of Latex-Modified Fiber-Reinforced Segment Concrete as a Function of Microsilica Content. Advances in Civil Engineering No. 2019 (2019), pp.1-10.
https://search.emarefa.net/detail/BIM-1116026
نمط استشهاد الجمعية الطبية الأمريكية (AMA)
Kim, Woong& Oh, Ri-On& Lee, Joo-Ha& Kim, Mi-Sol& Jeon, Sang-Min& Park, Chan-Gi. Mechanical and Durability Characteristics of Latex-Modified Fiber-Reinforced Segment Concrete as a Function of Microsilica Content. Advances in Civil Engineering. 2019. Vol. 2019, no. 2019, pp.1-10.
https://search.emarefa.net/detail/BIM-1116026
نوع البيانات
مقالات
لغة النص
الإنجليزية
الملاحظات
Includes bibliographical references
رقم السجل
BIM-1116026
قاعدة معامل التأثير والاستشهادات المرجعية العربي "ارسيف Arcif"
أضخم قاعدة بيانات عربية للاستشهادات المرجعية للمجلات العلمية المحكمة الصادرة في العالم العربي
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تقوم هذه الخدمة بالتحقق من التشابه أو الانتحال في الأبحاث والمقالات العلمية والأطروحات الجامعية والكتب والأبحاث باللغة العربية، وتحديد درجة التشابه أو أصالة الأعمال البحثية وحماية ملكيتها الفكرية. تعرف اكثر
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