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Journal of Rehabilitation in Civil Engineerin، جلد ۵، شماره ۲، صفحات ۶۱-۷۰
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عنوان انگلیسی Durability of Self-compacting Lightweight Aggregate Concretes (LWSCC) as Repair Overlays
چکیده انگلیسی مقاله For rehabilitation of damaged concrete structures, the durability of repair overlay is a very important issue. Self-compacting concretes (SCC) are known as a suitable repair overlay materials. In this study, the durability of different self-compacting lightweight aggregate concretes (LWSCC) and effect of lightweight aggregate type on them is investigated. 3 mix designs of LWSCC containing three different types of lightweight aggregates and a conventional self-compacting concrete were considered. The Rapid chloride permeability tests (RCPT), Rapid chloride migration tests (RCMT) and Accelerated corrosion tests (ACT) were performed and the Chloride migration coefficients were obtained. The corrosion resistance of the mix designs was investigated and compared. The classification of the concrete resistance against chloride penetration for all lightweight Mixes were acceptable but concrete with Leca and Pumice had the best and the worst performance respectively. As a result of using lightweight aggregates, using Scoria aggregate may cause better protection to steel reinforcement against corrosion than Leca and Pumice aggregate.
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نویسندگان مقاله حامد پوراحمدی صفت عربانی | pourahmadi sefat arabani
department of civil engineering, fouman and shaft branch, islamic azad university, fouman- iran
سازمان اصلی تایید شده: دانشگاه آزاد اسلامی علوم و تحقیقات (Islamic azad university science and research branch)

علی صدرممتازی |
- associate professor, department of civil engineering, guilan university
سازمان اصلی تایید شده: دانشگاه گیلان (Guilan university)

میر علی محمد میرگذار لنگرودی | mir alimohammad mirgozar langaroudi
department of civil engineering, fouman and shaft branch, islamic azad university, fouman- iran
سازمان اصلی تایید شده: دانشگاه آزاد اسلامی علوم و تحقیقات (Islamic azad university science and research branch)

رضا کهنی khoshkbijari | kohani khoshkbijari
department of civil engineering, guilan university
سازمان اصلی تایید شده: دانشگاه گیلان (Guilan university)

مرتضی آمویی |
m.sc. of structural engineering, islamic azad university south tehran branch, tehran, iran
سازمان اصلی تایید شده: دانشگاه آزاد اسلامی علوم و تحقیقات (Islamic azad university science and research branch)

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