DEVELOPMENT OF A SETUP FOR IN-SITU MEASUREMENT OF REINFORCEMENT CORROSION

الموضوعات

علوم تطبيقية وتكنولوجية

الملخص

Deterioration and damage of reinforced concrete structures due to reinforcement corrosion is a widely reported subject in the literature. The rate of reinforcement corrosion is one of the essential factors required for assessing the extent of damage in a corroded reinforced concrete member and also for predicting its residual service-life. The rate of reinforcement corrosion is generally evaluated by the linear polarization resistance technique. However, the available commercial equipment do not predict the rate of reinforcement corrosion due to the high resistive medium of concrete. Thus there is a need to develop a reliable setup to measure reinforcement corrosion in concrete. The objective of this study was to develop a reliable and simple set-up and procedure for determining the rate of reinforcement corrosion utilizing the linear polarization resistance method.Reinforced concrete specimens 500 × 500 × 80 mm with three 12 mm diameter steel bars were prepared. The steel bars in the concrete slabs were corroded to varying degree by the impressed current method. Corrosion current density (Icorr) was measured using the developed setup and two commercial equipment and the results were compared with the gravimetric weight loss.The corrosion current density determined using the developed setup and other two commercial equipment without Ohmic drop compensation compared very well with the gravimetric weight loss. However, the best trend was noted in the data obtained from the developed setup. A good correlation was noted between the corrosion current density values determined with the developed setup with Ohmic drop compensation and the gravimetric weight loss. However, the correlation between the corrosion current density measured using the commercial equipment with Ohmic drop was poor indicating that the commercial equipment are not able to measure the corrosion rate with Ohmic drop compensation. These results indicate the usefulness of the developed setup in both types of measurements, namely with and without Ohmic compensation. A good correlation was noted between the moisture content, electrical resistivity and corrosion current density.

روابط وملفات

التعريف والنوع

رقم الوثيقة

f4b497d0-7a07-4744-a958-9174f09ac2ce

رقم العقد

0

نوع الوسائط

Crawler

نوع المحتوى

الرسائل العلمية

صيغة المصدر

رسائل ماجيستير

نوع الملف

pdf text

أسماء الملفات

947820_1.pdf

بيانات النشر

ترجمة العنوان

تطوير نظاما لقياس تآكل حديد التسليح في الموقع

ألقاب المؤلفين

[{"name_ar":" Shamshad Ahmad","title_ar":"اشراف","title_en":"Supervision"},{"name_ar":"Abul Kalam Azad ","title_ar":"اشراف","title_en":"Supervision"},{"name_ar":"محمد عبد العظيم جبران","title_ar":"اعداد","title_en":"Preparation"}]

اللغة

English

المصدر والدورية

اسم المصدر

DEVELOPMENT OF A SETUP FOR IN-SITU MEASUREMENT OF REINFORCEMENT CORROSION

المحتوى والصفحات

عدد الصفحات

0

إشراف وإعداد

الإشراف

Shamshad Ahmad, Abul Kalam Azad

الإعداد

محمد عبد العظيم جبران

الاقتباسات الببليوغرافية