An experimental study to the design of pressure inside fire-resistant concrete

مقدم أطروحة جامعية

Mahmud, Ali Sad

مشرف أطروحة جامعية

Hasan, Shakir Sakran
Gross, Ulrich

الجامعة

الجامعة التكنولوجية

الكلية

قسم هندسة المكائن و المعدات

دولة الجامعة

العراق

الدرجة العلمية

ماجستير

تاريخ الدرجة العلمية

2013

الملخص الإنجليزي

The developing steam-pressure inside fire-resistant concrete during first heating can exceed the strength of concrete and cause an explosive spalling.

A technique for an experimental device was designed and used in this research for more understanding to the behavior of the pore-pressure-sensor under various conditions.

This technique is able to measure the real amount of pore-pressure and able to compare and calibrate the pore-pressure sensors.

Tn addition, a control program was designed for recording and measurement computerized for the obtained results.

Various studies have been carried-out on fire resistance concrete specimens by this technique, the specimens have different diameters (3.6, 4.3, 5.1, 6.6, 7 and 8.5 cm) and heights (5 and 7 cm), with a pressure and temperature up to 3 bar and 120 °c respectively.

The results showed that the type and the volume of the fluid filling the space inside the tube-pressure-sensor have a highly influence on its response.

Tn which, by the use of water instead of air as a fluid filling this space, the time delay was reduce by (75 %), also by reducing the space volume, a reduction of (67 %) in the time delay is achieved.

Tn addition, the leakage between the tube and the concrete that initiated by shrinkage cracks have a high influence and cause a big error in the measurement.

التخصصات الرئيسية

العلوم الهندسية والتكنولوجية (متداخلة التخصصات)

الموضوعات

نمط استشهاد جمعية علماء النفس الأمريكية (APA)

Mahmud, Ali Sad. (2013). An experimental study to the design of pressure inside fire-resistant concrete. (Master's theses Theses and Dissertations Master). University of Technology, Iraq
https://search.emarefa.net/detail/BIM-417493

نمط استشهاد الجمعية الأمريكية للغات الحديثة (MLA)

Mahmud, Ali Sad. An experimental study to the design of pressure inside fire-resistant concrete. (Master's theses Theses and Dissertations Master). University of Technology. (2013).
https://search.emarefa.net/detail/BIM-417493

نمط استشهاد الجمعية الطبية الأمريكية (AMA)

Mahmud, Ali Sad. (2013). An experimental study to the design of pressure inside fire-resistant concrete. (Master's theses Theses and Dissertations Master). University of Technology, Iraq
https://search.emarefa.net/detail/BIM-417493

لغة النص

الإنجليزية

نوع البيانات

رسائل جامعية

رقم السجل

BIM-417493