APPLICATION OF HYBRID FIBER REINFORCEMENT AND HIGH VOLUME COARSE FLY ASH IN SELF COMPACTING CONCRETE

سال انتشار: 1388
نوع سند: مقاله کنفرانسی
زبان: انگلیسی
مشاهده: 2,162

فایل این مقاله در 11 صفحه با فرمت PDF قابل دریافت می باشد

استخراج به نرم افزارهای پژوهشی:

لینک ثابت به این مقاله:

شناسه ملی سند علمی:

ICCD03_105

تاریخ نمایه سازی: 20 مهر 1387

چکیده مقاله:

Self compacting concrete is termed as a concrete with high flow ability and cohesiveness which can fill its mold without the need of any extra vibration effort. Fiber inclusion to concrete enhances the mechanical properties, while making the concrete less workable. This article presents a study on the fresh and mechanical properties of a fiber reinforced self compacting concrete incorporating highvolume fly ash that does not meet the fineness requirements of ASTM C 618. A poly carboxylic based superplasticizer was used in combination with a viscosity modifying admixture. In mixes containing fly ash, 50% of cement by weight was replaced with fly ash. Two different types of steel fibers were used in combination, keeping the total fiber content constant at 60 kg/m3. Slump flow time and diameter, V funnel, and air content were performed to assess the fresh properties of the concrete. Compressive strength, split tensile strength, and ultrasonic pulse velocity of the concrete were determined for the hardened properties. It can be concluded that high-volume coarse fly ash could successfully be used in producing fiber reinforced SCC. Even though there is some reduction in the concrete strength, because of the use of high-volume coarse fly ash, it is possible to achieve self compaction with considerable fiber inclusion.

کلیدواژه ها:

نویسندگان

A.A Mounesan

Civil Engineer, Sharif University of Technology, Head Manager of Atisaz Company

K Siamardi

Civil Engineer, Concrete Research Center, Atisaz Company

M.M Khodavirdi Zanjani

Civil Engineer, Concrete Research Center, Atisaz Company

مراجع و منابع این مقاله:

لیست زیر مراجع و منابع استفاده شده در این مقاله را نمایش می دهد. این مراجع به صورت کاملا ماشینی و بر اساس هوش مصنوعی استخراج شده اند و لذا ممکن است دارای اشکالاتی باشند که به مرور زمان دقت استخراج این محتوا افزایش می یابد. مراجعی که مقالات مربوط به آنها در سیویلیکا نمایه شده و پیدا شده اند، به خود مقاله لینک شده اند :
  • H. Okamura, M. Ouchi, Self compacting concrete: development, present use ...
  • A. Bilodeau, V. S ivasundaram, K.E. Painter, V.M. Malhotra, Durability ...
  • A. Bilodeau, V. M. Malhotra, High-volume fly ash system: concrete ...
  • N. Bouzoubaa, M. H. Zhang, V. M. Malhotra, Mechanical properties ...
  • N. Bouzoubaa, M. Laclemi, S elf- Compacting concrete incorporating high ...
  • D.J. Hannant, Fiber Cements and Fiber Concrete, Wiley, Chichester, 1987. ...
  • A. Bentur, S. Mindess, Fiber Reinforced Cementitious Composites, Elsevier, London, ...
  • B. Mobasher, C.Y. Li, Mechanical properties of hybrid cement-based composites, ...
  • K. H. Khayat, Y. Roussel, Testing and performance of _ ...
  • P. Grouth, D. Nemegeer, The use of steel fibres in ...
  • _ 3S" International Conference on Concrete « Jevelopment / 107 ...
  • S. Nagataki and H. Fujiwara, S el f-compacting property of ...
  • EFNARC, Specification & Guidelines for S elf- Compacting Concrete (2002). ...
  • K. H. Khayat, Z. Guizani, Use of vi _ S ...
  • A. Yahia, M. Tanimura, A. Shimabukuro, Y. Shimoyama, Effect of ...
  • نمایش کامل مراجع