The Technical Master’s Thesis, specializing in Structural Materials Technology Engineering, was discussed at the College of Engineering Technology/Mosul
Optimizing The Recycled Aggregates For The Production Of Good Performance Concrete Reinforced With Glass Fibers
The thesis submitted by the researcher (Yasser Hamad Muhammad) examined an innovative approach to improve recycled concrete through the inclusion of glass fibers to improve its performance by developing the Keras “Recurrent Neural Network (kRN)” model, which achieved amazing prediction accuracy by achieving an R2 ratio of 1 to predict the compressive strength in recycled concrete. Rotate it.
The thesis demonstrated the possibility of using artificial intelligence methodologies as innovative tools to predict the performance of building materials through careful investigation into the performance of recycled concrete, as the study demonstrated the existence of an inverse relationship between the percentage of recycled aggregate (RCA) and compressive strength. Specifically, the addition of 50% RCA reduced the compressive strength by an estimated 8.9%. This was demonstrated by the results of advanced analyzes using a scanning electron microscope (SEM) to study the microscopic effects of RCA and glass fibers.
The thesis explained that the addition of glass fibers significantly enhances the splitting tensile strength and flexural strength in recycled concrete while demonstrating the positive effect of glass fibers even in mixes with high RCA ratios because they have a rougher texture and porousness compared to natural coarse aggregate.
The message recommended:-
– The possibility of adopting artificial intelligence models such as the kRN model and its effectiveness in predicting the compressive strength generated in recycled concrete.
– The possibility of improving recycled concrete using glass fibers to reduce some of the negative effects by filling voids and improving the bond between cement and aggregate to a certain extent.
– Adopting the results to contribute to the development of sustainable building materials that provide valuable guidance to practitioners in this field.
The discussion committee consisted of: –
-Professor Dr. Maysar Muhammad Jumaa, Chairman
-Assistant Professor. Jassim Mohammed Abd, member
-The teacher, Dr. Hassan Mohamed Ahmed, member
-Mr. Dr. Alia Abbas Ali Al-Attar, member and supervisor
-Prof. Dr. Firas Khairy Jaber, member and supervisor