کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
259335 503632 2012 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Use of polymer modified mortar in controlling cracks in reinforced concrete beams
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی عمران و سازه
پیش نمایش صفحه اول مقاله
Use of polymer modified mortar in controlling cracks in reinforced concrete beams
چکیده انگلیسی

This paper presents the results of an experimental investigation on the strengthening of existing cracked RC members. The proposed technique consists of applying locally available polymer modified mortar in cracked beams to increase the load carrying capacity. A total of six full scale RC beams were constructed with the same material using the same mix and water–cement ratio. Initially, beams were tested until the development of cracks with width reached a limiting value of 1 mm. The beams were then repaired with the application of polymer modified mortar technique. After 3 days of water curing the beams were tested again and loaded till the failure. An improvement in the load carrying capacity was observed in the beams after the retrofitting. Results clearly demonstrate the effectiveness of the proposed technique in repairing the RC members for strengthening the existing structures.


► RC beams can be strengthened with PMM application.
► PMM application injection is more effective for flexural control of cracks.
► Repaired RC beams with flexural and shear reinforcement showed more stiffness.
► Application of PMM exhibited no improvement in the stiffness of repaired beams.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Construction and Building Materials - Volume 27, Issue 1, February 2012, Pages 91–96
نویسندگان
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