Mechanical Properties of Mortars Effected by Alkali-Silica Reaction

سال انتشار: 1388
محل انتشار: نخستین کنفرانس بین المللی بتن
کد COI اختصاصی: ICCT01_095
زبان مقاله: انگلیسی
تعداد مشاهده: 1750

دانلود فایل این مقاله

نویسندگان

Hasbi Yaprak

Kastamonu Vocational School, Kastamonu University, ۳۷۱۰۰ Kastamonu

I lhami Demir

Department of Civil Engineering, Kırıkkale University, ۷۱۴۵۰, Kırıkkale

Osman Simsek

Faculty of Technical Education, Gazi University, ۰۶۵۵۰۰, Ankara

چکیده

Portland cement industry is held responsible for about 5 % of the CO2 emissions. The challenge, therefore, is to develop sustainable solutions based on green cementitious materials. Belite cements have low CaO consumption, thus resulting in lesser CO2 emissions during the production phase. Alkali-silica reaction (ASR) can cause the premature distress and loss in serviceability of concrete structures. The aim of this research was to investigate alkali-silica behaviors of boron-modified active Belite cement and CEM I, CEM II/A, CEM III/A cements. The study was carried out on mortar bars, which were cast and tested in accordance with an accelerated method, ASTM C1260. The experimental program contained measurements of mortar bar expansions. In addition, the mortars affected by ASR flexural and compressive strengths were determined in accordance with ASTM C348 and ASTM C109, using 40×40×160 mm mortar prisms, respectively. The highest compressive strength loss which was 19% was found in OPC and the lowest one which was 6% in GGSC

کلیدواژه ها

Boron-modified active belite cement, alkali-silica reaction, expansion, mortar

مقالات مرتبط جدید

اطلاعات بیشتر در مورد COI

COI مخفف عبارت CIVILICA Object Identifier به معنی شناسه سیویلیکا برای اسناد است. COI کدی است که مطابق محل انتشار، به مقالات کنفرانسها و ژورنالهای داخل کشور به هنگام نمایه سازی بر روی پایگاه استنادی سیویلیکا اختصاص می یابد.

کد COI به مفهوم کد ملی اسناد نمایه شده در سیویلیکا است و کدی یکتا و ثابت است و به همین دلیل همواره قابلیت استناد و پیگیری دارد.