Course Description and Credit Information

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Course Description:

This course offers studies in the thermal and mechanical properties of sustainable concrete materials used in various applications. Participants will delve into the research and experimental investigations conducted on concrete mixtures containing waste materials as substitutes for fine aggregates. The course will also explore the effects of metal lathe waste addition and the influence of polypropylene, glass, and steel fibers on the thermal properties of concrete. Additionally, students will examine the thermal properties of fireplace concrete materials containing diverse mineral aggregates and enriched with organic and inorganic fibers. Throughout the course students will gain a comprehensive understanding of the behavior and performance of these innovative concrete materials.

Learning Objectives:

1. Attendees will understand the thermal properties of concrete and their implications for energy efficiency in landscape design.

2. Attendees will understand  the influence of dispersed reinforcement, such as recycled fibers, on the mechanical properties and heat flow in concrete materials.

3. Attendees will learn about the changes in thermal conductivity, specific heat capacity, and thermal diffusivity caused by the addition of fibers.

General Course Information

Credits 2.75 CEU/CE/PH/CH
HSW Yes
Format PDF files that can be downloaded and audio files that read the pdf content if you prefer audio

 

Course preview:

Abstract: This study investigates the shear behavior of reinforced concrete (RC) beams that have been strengthened using carbon fiber reinforced polymer (CFRP) grids with engineered cementitious composite (ECC) through finite element (FE) analysis. The analysis includes twelve simply supported and continuous beams strengthened with different parameters such as CFRP sheets, CFRP grid cross-sectional area, and CFRP grid size. To conduct the analysis, FE models of the RC beams were created and analyzed using ABAQUS software. Research results show that the strengthened RC beams with CFRP grids and ECC had approx. 30–50% higher shear capacity than reference RC beams. The composite action of CFRP grids with the ECCs also showed a significant ability to limit diagonal cracks and prevent the degradation of the bending stiffness of the RC beams. Furthermore, this study calculated the shear capacity of the strengthened beams using an analytical model and compared it with the numerical analysis results. The analytical equations showed only a 4% difference from the numerical results, indicating that the analytical model can be used in practice.