کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
6480869 1428780 2016 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Compatibility of repair materials with substrate low-modulus cement and asphalt mortar (CA mortar)
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی عمران و سازه
پیش نمایش صفحه اول مقاله
Compatibility of repair materials with substrate low-modulus cement and asphalt mortar (CA mortar)
چکیده انگلیسی


- The mechanical properties compatibility of CAM and repair mortar was evaluated.
- A modified test method was developed for CAM compatibility evaluation.
- CAM compatibility criteria with repair materials was summarized.

The compatibility of the mechanical properties of low-modulus cement and asphalt mortar (CAM) and repair materials was studied using the four-point bending test method. According to the bearing characteristics of CAMs, a four-point bending fatigue test was further developed to evaluate the compatibility of this material with the repair material. With the help of a finite element model, the effect of the difference in the modulus of the substrate mortar and the repair mortar on the stress and strain distribution of a composite sample was studied. The results indicated that the CAM compatibility criteria with repair materials were different from those of the concrete repair system. The difference in the moduli of the substrate mortar and repair mortar determined the loading transfer efficiency and failure mode, which mainly influenced the compatibility of the mechanical properties. The repair materials were compatible with substrate CA mortar when its modulus was approximately 0.75-1.28 times the substrate mortar modulus according to the experimental results. The four-point fatigue test met the requirements of the bearing characteristics of the CA mortar and the present quantitative experimental results, which provide supplementary information for compatibility evaluation.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Construction and Building Materials - Volume 126, 15 November 2016, Pages 304-312
نویسندگان
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