For the renovation of concrete structures, a post-installed reinforcement system is used to connect the existing and new concrete structures. In that application, hole drilling is carried out into the existing concrete, and then the reinforcements are inserted into the holes with adhesive material. The reason to propose this study because of construction need to…
Fiber-reinforced polymer (FRP) anchors, also known as FRP anchors, are an emerging form of anchorage system to prevent or delay debonding of FRP from the concrete surfaces in the application of strengthening concrete structures using externally bonded FRP systems. This paper reports the results of experiments on Tyfo® Fibr anchors, which are made from glass…
Post-installed bundled reinforcement is used to connect the existing concrete with new concrete structures when the post-installed single reinforcement is not feasible. In this study, the assessment of the bond behavior of the post-installed bundled reinforce-ment is carried out using the finite element method (FEM). The study focused on evaluating the bond strength, and failure…
The aim of the research project is to study the behavior of system of steel roof components, which are made of suspended bendy rigid steel elements by a pole at each end. The elements of this type of roof system are subjected to tension and bending, and because it is lightweight and uncomplicated to build,…
This paper presents the analytical optimised truss model based on the principle of the minimum total strain energy theorem. The model was validated against 90 experimental data collected from the literature. The predicted shear strength in the analysis showed a very satisfactory correlation with the test results, with the average experimental/analytical failure load ratio of…
Two test series with various UHPC strengthening interventions were conducted in this study to investigate the behaviour of composite reinforced concrete (RC) slabs strengthened with UHPC. The first, RE series is a retrofit interventions, tested UHPC as patch material for repairing deteriorated concrete structures. As for the second, OV series is a UHPC overlay interventions,…
This paper presents an optimized truss model based on the principle of minimum total energy theorem. Six most recent effective strain ɛfrp,e models including three design guidelines were selected for the analysis. Three reinforced concrete beams strengthened with different fiber reinforced polymer (FRP) schemes were chosen. Comparing with current design guidelines, the results of these…
The technique of laser texturing has been gaining popularity in recent years because of its use in enhancement of tribological performance. In this paper, the effect of indirect laser texturing is analyzed on hydrogenated DLC coating under line contact configuration. Most previous research studies have been carried out for point contact configuration. The aim of…
This paper presented experimental results to evaluate the optimization of production parameters through response surface methodology. These parameters significantly affected the yield of cottonseed oil methyl ester (COME). The input variables for the production of methyl ester from cottonseed oil were methanol/oil molar ratio, concentration of catalyst, temperature, and stirring speed. The response or output…
Lubricants are mostly used to reduce the friction and wear between sliding and metal contact surfaces, allowing them to move smoothly over each other. Nowadays, due to the increase in oil prices and reduction of oil reserves, it is necessary to replace mineral oil, which will also protect the environment from hazards caused by these…
