An Investigation on In-situ Strength and Bonding Strength of Polymer Modified Concretes (PMC) as Repair Overlays on Conventional Concrete Substrate

سال انتشار: 1396
نوع سند: مقاله ژورنالی
زبان: انگلیسی
مشاهده: 61

فایل این مقاله در 12 صفحه با فرمت PDF قابل دریافت می باشد

استخراج به نرم افزارهای پژوهشی:

لینک ثابت به این مقاله:

شناسه ملی سند علمی:

JR_CIVLJ-5-1_005

تاریخ نمایه سازی: 23 شهریور 1403

چکیده مقاله:

Polymer modified concrete (PMC) consists of Portland cement concrete with a polymer modifier. Its advantages are proper bonding strength to substrate concrete, high tensile and flexural strength and low amount of shrinkage and permeability. Using PMC overlays can be considered as a method for preservation of damaged concrete structures due to their suitable performance and durability. In this research, ۲۴ mix designs of polymer modified concrete as the repair overlay containing two different types of modifier polymers (Styrene butadiene rubber (SBR)-based and Acrylic-based polymers) with different replacement percentages and various amounts of silica fume was considered to investigate the effect of type and amount of polymers and also presence of silica fume. The in-situ strengths are obtained by the Pull-off Method in different conditions of presence of cores and without cores on cubic samples and without cores on repair overlays. The bonding strength of repair overlays to the substrate is also assessed and a formula is presented for prediction of bonding strength and in-situ strength by consideration mechanical properties.In both polymer modifiers, maximum bonding occurred in the presence of polymer with ۲۰% of cement weight. SBR-based PMC showed stronger bonding compared to the Acrylic-based PMC.

نویسندگان

Ali SadrMomtazi

Associate Professor, Faculty of Engineering, University of Guilan, Rasht, Iran

Reza Kohani Khoshkbijari

Ph.D. Candidate, Faculty of Engineering, University of Guilan, Rasht, Iran

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 :
  • Barluenga, G.Hernandez, F. (۲۰۰۴),"SBR latex modified mortar rheology and mechanical ...
  • Diab, A.M., Elyamany, H.E.Ali, A.H. (۲۰۱۴),"The participation ratios of cement ...
  • Manson, J.A. (۱۹۷۶),"Modifications of Concretes with Polymers", Materials Science and ...
  • Beushausen, H.Gillmer, M. (۲۰۱۴),"The use of superabsorbent polymers to reduce ...
  • Beushausen, H., Gillmer, M.Alexander, M. (۲۰۱۴),"The influence of superabsorbent polymers ...
  • Rossignolo, J.A.Agnesini, M.V.C. (۲۰۰۲),"Mechanical properties of polymer-modified lightweight aggregate concrete", ...
  • Rossignolo, J.A.Agnesini, M.V.C. (۲۰۰۴),"Durability of polymer-modified lightweight aggregate concrete", Cement ...
  • Shaker, F.A., El-Dieb, A.S.Reda, M.M. (۱۹۹۷),"Durability of Styrene-Butadiene latex modified ...
  • Dogan, M.Bideci, A. (۲۰۱۶),"Effect of Styrene Butadiene Copolymer (SBR) admixture ...
  • Momayez, A., Ehsani, M.R., Ramezanianpour, A.A.Rajaie, H. (۲۰۰۵),"Comparison of methods ...
  • Brien, J.V..Mahboub, K.C. (۲۰۰۷),"Influence of polymer type on adhesion performance ...
  • Courard, L., Piotrowski, T.Garbacz, A. (۲۰۱۴),"Near-to-surface properties affecting bond strength ...
  • Espeche, A.D.León, J. (۲۰۱۱),"Estimation of bond strength envelopes for old-to-new ...
  • Julio, E.N.B.S., Branco, F.A.B.Silva, V.D. (۲۰۰۴),"Concrete-to-concrete bond strength. Influence of ...
  • Julio, E.N.B.S., Branco, F.A.B., Silva, V.D.Lourenco, J.F. (۲۰۰۶),"Influence of added ...
  • Mohammadi, M., Moghtadaei, R.M.Saman, N.A. (۲۰۱۴),"Influence of silica fume and ...
  • Talbot, C., Pigeon, M., Beaupre, D.Morgan, D. (۱۹۹۴),"Influence of surface ...
  • Saldanha, R., Jlio, E., Dias-da-Costa, D.Santos, P. (۲۰۱۳),"A modified slant ...
  • Momayez, A., Ehsani, M.R., Ramezanianpour, A.A.Rajaie, H. (۲۰۰۵),"Comparison of methods ...
  • Ghavidel, R., Madandoust, R.Ranjbar, M.M. (۲۰۱۵),"Reliability of pull-off test for ...
  • Sun, Z.Dillard, D.A. (۲۰۱۰),"Three-dimensional finite element analysis of fracture modes ...
  • ASTM,(۲۰۱۶) C۳۳ / C۳۳M-۱۶ : Standard Specification for Concrete Aggregates., ...
  • Fowler, D.W. (۱۹۹۹),"Polymers in concrete: a vision for the ۲۱st ...
  • Ohama, Y., (۱۹۹۵), Handbook of Polymer Modified Concrete and Mortars. ...
  • ASTM,(۲۰۱۲) D۷۲۳۴ - ۱۲ : Standard Test Method for Pull-Off ...
  • نمایش کامل مراجع