This document presents the results of a study on the influence of graphene oxide powder on the compressive strength of concrete. Various percentages of graphene oxide powder (0%, 0.01%, 0.02%, 0.03%, and 0.04% by weight of cement) were added to concrete mixes with different water-cement ratios. Tests found that workability was maintained at different water-cement ratios. Compressive strength generally increased with the addition of graphene oxide powder up to 0.03%, with the highest strength achieved at 0.03%. Curve fitting identified the best fit equations for mix design based on the compressive strength results.
As concrete is the most abundant material used in the world, it contains aggregate content of around 60 to 70 %. Since aggregate are being used rapidly there has been a scarcity in the avaibility of these materials. This research investigates the effect of partially replacing aggregates by burnt brick bats and lateritic fines in concrete respectively for M25 grade concrete. The incorporation is done for 5%, 10% and 15% of burnt brick bats for coarse aggregate and by talking 15% of lateritic fines as constant for fine aggregate by conducting compressive strength test which gave the optimum value of 15% for natural sand. The compressive strength, split tensile strength and flexural strength was conducted. The results showed density of of the concrete incorporating brick and laterite was lower compared to conventional concrete, the concrete with 5% burnt brick and 15% lateritic soil showed increased strength for 7 days compared to normal concrete but when 28 days test was conducted the strength was similar to conventional concrete. The split tensile and flexural strength of replaced concrete was found to be lower than the nominal concrete.
International Journal of Engineering Research and DevelopmentIJERD Editor
Electrical, Electronics and Computer Engineering,
Information Engineering and Technology,
Mechanical, Industrial and Manufacturing Engineering,
Automation and Mechatronics Engineering,
Material and Chemical Engineering,
Civil and Architecture Engineering,
Biotechnology and Bio Engineering,
Environmental Engineering,
Petroleum and Mining Engineering,
Marine and Agriculture engineering,
Aerospace Engineering.
STUDY ON EFFECT OF HYBRID FRP LAMINATES WRAPPED EXTERNALLY (U-WRAP) ON REINFO...IAEME Publication
Recently fibre reinforced polymer composite material namely glass FRP, carbon FRP, basalt FRP etc, is being used as strengthening material. Each technique has its own merits and limitations. Experimental study have been conducted on Reinforced concrete beams which are externally strengthened with GFRP and CFRP as double layer one above the other and it is referred as Hybrid FRP techniques is attained with epoxy resin as adhesive compound. All the ingredients in the beam specimens were maintained with same consistency. A total six beams were cast for the experimental investigation. Out of that three were kept as control specimens and the remaining three were strengthened with double layer of CFRP and GFRP in the U-Wrap pattern. From the overall experimental investigation it can be observed that there is an appreciable increase in ultimate load carrying capacity of the beams strengthened with hybrid FRP laminates.
The installation of Helical Confinement in the Compression Zone of reinforced High Strength Concrete beams is also investigated in this study. Helical Confinement is more effective than the rectangular ties, Compression Longitudinal reinforcement and steel fibers in increasing the strength and ductility of Confined Concrete. A total number of 3 Specimens were casted. The Pitch distance for helical confinement of two specimens is 50mm, 60mm and the Pitch distance for normal confinement is 50mm. The Specimen is of a size of 600mm X 300mm X 300mm. It contains of 8 mm dia bar as longitudinal reinforcement and 6mm dia bar as transverse reinforcement. M 40 and Fe 500 Grade steels were used. After 28 Days of Curing. The Specimens were taken out and allowed to dry and tested under universal testing machine of capacity 1000 KN. The Effect of Yield strength ductility, were studied from Stress – Strain and Load – Displacement Curves. This Study Concluded the Helical Reinforcement is an effective method for increasing the Strength and Ductility of Reinforcement High Strength Concrete Beam.
This project discusses with Basalt fiber reinforced concrete. And the report present the art of knowledge of basalt fiber, it is relatively new material Basalt is an igneous rock. Basalt fiber reinforced concrete offers more characteristics such as lightweight and good fire resistance and strength. In future it is very beneficial for construction industry. Many applications of basalt fiber are residential industrial, highway and bridges. The information in this report has been compiled from reports of test programs by various researchers and represents current opinion.
Due to increase in construction activities there is increase in demand for concrete, which leads to over use of natural resource. Hints, conservation of natural resource is necessary thing. Among the waste generated it is presumed that 10% to 15% of waste hazardous and increasing at the rate of 2% to5% per year resulting in environmental pollution and effect to living beings. These wastes can be utilized as alternative construction material, so that would be one of the consistent ways of disposal. This paper attempts to study the strength parameters such as compressive and tensile strength of paper sludge ash (15% and 20%) as partial replacement of cement, M-sand (50% and 60%) of partial replacement of fine aggregate for a design mix of M25.
As concrete is the most abundant material used in the world, it contains aggregate content of around 60 to 70 %. Since aggregate are being used rapidly there has been a scarcity in the avaibility of these materials. This research investigates the effect of partially replacing aggregates by burnt brick bats and lateritic fines in concrete respectively for M25 grade concrete. The incorporation is done for 5%, 10% and 15% of burnt brick bats for coarse aggregate and by talking 15% of lateritic fines as constant for fine aggregate by conducting compressive strength test which gave the optimum value of 15% for natural sand. The compressive strength, split tensile strength and flexural strength was conducted. The results showed density of of the concrete incorporating brick and laterite was lower compared to conventional concrete, the concrete with 5% burnt brick and 15% lateritic soil showed increased strength for 7 days compared to normal concrete but when 28 days test was conducted the strength was similar to conventional concrete. The split tensile and flexural strength of replaced concrete was found to be lower than the nominal concrete.
International Journal of Engineering Research and DevelopmentIJERD Editor
Electrical, Electronics and Computer Engineering,
Information Engineering and Technology,
Mechanical, Industrial and Manufacturing Engineering,
Automation and Mechatronics Engineering,
Material and Chemical Engineering,
Civil and Architecture Engineering,
Biotechnology and Bio Engineering,
Environmental Engineering,
Petroleum and Mining Engineering,
Marine and Agriculture engineering,
Aerospace Engineering.
STUDY ON EFFECT OF HYBRID FRP LAMINATES WRAPPED EXTERNALLY (U-WRAP) ON REINFO...IAEME Publication
Recently fibre reinforced polymer composite material namely glass FRP, carbon FRP, basalt FRP etc, is being used as strengthening material. Each technique has its own merits and limitations. Experimental study have been conducted on Reinforced concrete beams which are externally strengthened with GFRP and CFRP as double layer one above the other and it is referred as Hybrid FRP techniques is attained with epoxy resin as adhesive compound. All the ingredients in the beam specimens were maintained with same consistency. A total six beams were cast for the experimental investigation. Out of that three were kept as control specimens and the remaining three were strengthened with double layer of CFRP and GFRP in the U-Wrap pattern. From the overall experimental investigation it can be observed that there is an appreciable increase in ultimate load carrying capacity of the beams strengthened with hybrid FRP laminates.
The installation of Helical Confinement in the Compression Zone of reinforced High Strength Concrete beams is also investigated in this study. Helical Confinement is more effective than the rectangular ties, Compression Longitudinal reinforcement and steel fibers in increasing the strength and ductility of Confined Concrete. A total number of 3 Specimens were casted. The Pitch distance for helical confinement of two specimens is 50mm, 60mm and the Pitch distance for normal confinement is 50mm. The Specimen is of a size of 600mm X 300mm X 300mm. It contains of 8 mm dia bar as longitudinal reinforcement and 6mm dia bar as transverse reinforcement. M 40 and Fe 500 Grade steels were used. After 28 Days of Curing. The Specimens were taken out and allowed to dry and tested under universal testing machine of capacity 1000 KN. The Effect of Yield strength ductility, were studied from Stress – Strain and Load – Displacement Curves. This Study Concluded the Helical Reinforcement is an effective method for increasing the Strength and Ductility of Reinforcement High Strength Concrete Beam.
This project discusses with Basalt fiber reinforced concrete. And the report present the art of knowledge of basalt fiber, it is relatively new material Basalt is an igneous rock. Basalt fiber reinforced concrete offers more characteristics such as lightweight and good fire resistance and strength. In future it is very beneficial for construction industry. Many applications of basalt fiber are residential industrial, highway and bridges. The information in this report has been compiled from reports of test programs by various researchers and represents current opinion.
Due to increase in construction activities there is increase in demand for concrete, which leads to over use of natural resource. Hints, conservation of natural resource is necessary thing. Among the waste generated it is presumed that 10% to 15% of waste hazardous and increasing at the rate of 2% to5% per year resulting in environmental pollution and effect to living beings. These wastes can be utilized as alternative construction material, so that would be one of the consistent ways of disposal. This paper attempts to study the strength parameters such as compressive and tensile strength of paper sludge ash (15% and 20%) as partial replacement of cement, M-sand (50% and 60%) of partial replacement of fine aggregate for a design mix of M25.
Sachpazis:Terzaghi Bearing Capacity Estimation in simple terms with Calculati...Dr.Costas Sachpazis
Terzaghi's soil bearing capacity theory, developed by Karl Terzaghi, is a fundamental principle in geotechnical engineering used to determine the bearing capacity of shallow foundations. This theory provides a method to calculate the ultimate bearing capacity of soil, which is the maximum load per unit area that the soil can support without undergoing shear failure. The Calculation HTML Code included.
Industrial Training at Shahjalal Fertilizer Company Limited (SFCL)MdTanvirMahtab2
This presentation is about the working procedure of Shahjalal Fertilizer Company Limited (SFCL). A Govt. owned Company of Bangladesh Chemical Industries Corporation under Ministry of Industries.
Hybrid optimization of pumped hydro system and solar- Engr. Abdul-Azeez.pdffxintegritypublishin
Advancements in technology unveil a myriad of electrical and electronic breakthroughs geared towards efficiently harnessing limited resources to meet human energy demands. The optimization of hybrid solar PV panels and pumped hydro energy supply systems plays a pivotal role in utilizing natural resources effectively. This initiative not only benefits humanity but also fosters environmental sustainability. The study investigated the design optimization of these hybrid systems, focusing on understanding solar radiation patterns, identifying geographical influences on solar radiation, formulating a mathematical model for system optimization, and determining the optimal configuration of PV panels and pumped hydro storage. Through a comparative analysis approach and eight weeks of data collection, the study addressed key research questions related to solar radiation patterns and optimal system design. The findings highlighted regions with heightened solar radiation levels, showcasing substantial potential for power generation and emphasizing the system's efficiency. Optimizing system design significantly boosted power generation, promoted renewable energy utilization, and enhanced energy storage capacity. The study underscored the benefits of optimizing hybrid solar PV panels and pumped hydro energy supply systems for sustainable energy usage. Optimizing the design of solar PV panels and pumped hydro energy supply systems as examined across diverse climatic conditions in a developing country, not only enhances power generation but also improves the integration of renewable energy sources and boosts energy storage capacities, particularly beneficial for less economically prosperous regions. Additionally, the study provides valuable insights for advancing energy research in economically viable areas. Recommendations included conducting site-specific assessments, utilizing advanced modeling tools, implementing regular maintenance protocols, and enhancing communication among system components.
Democratizing Fuzzing at Scale by Abhishek Aryaabh.arya
Presented at NUS: Fuzzing and Software Security Summer School 2024
This keynote talks about the democratization of fuzzing at scale, highlighting the collaboration between open source communities, academia, and industry to advance the field of fuzzing. It delves into the history of fuzzing, the development of scalable fuzzing platforms, and the empowerment of community-driven research. The talk will further discuss recent advancements leveraging AI/ML and offer insights into the future evolution of the fuzzing landscape.
Quality defects in TMT Bars, Possible causes and Potential Solutions.PrashantGoswami42
Maintaining high-quality standards in the production of TMT bars is crucial for ensuring structural integrity in construction. Addressing common defects through careful monitoring, standardized processes, and advanced technology can significantly improve the quality of TMT bars. Continuous training and adherence to quality control measures will also play a pivotal role in minimizing these defects.
Immunizing Image Classifiers Against Localized Adversary Attacksgerogepatton
This paper addresses the vulnerability of deep learning models, particularly convolutional neural networks
(CNN)s, to adversarial attacks and presents a proactive training technique designed to counter them. We
introduce a novel volumization algorithm, which transforms 2D images into 3D volumetric representations.
When combined with 3D convolution and deep curriculum learning optimization (CLO), itsignificantly improves
the immunity of models against localized universal attacks by up to 40%. We evaluate our proposed approach
using contemporary CNN architectures and the modified Canadian Institute for Advanced Research (CIFAR-10
and CIFAR-100) and ImageNet Large Scale Visual Recognition Challenge (ILSVRC12) datasets, showcasing
accuracy improvements over previous techniques. The results indicate that the combination of the volumetric
input and curriculum learning holds significant promise for mitigating adversarial attacks without necessitating
adversary training.
Saudi Arabia stands as a titan in the global energy landscape, renowned for its abundant oil and gas resources. It's the largest exporter of petroleum and holds some of the world's most significant reserves. Let's delve into the top 10 oil and gas projects shaping Saudi Arabia's energy future in 2024.
Vaccine management system project report documentation..pdfKamal Acharya
The Division of Vaccine and Immunization is facing increasing difficulty monitoring vaccines and other commodities distribution once they have been distributed from the national stores. With the introduction of new vaccines, more challenges have been anticipated with this additions posing serious threat to the already over strained vaccine supply chain system in Kenya.
CFD Simulation of By-pass Flow in a HRSG module by R&R Consult.pptxR&R Consult
CFD analysis is incredibly effective at solving mysteries and improving the performance of complex systems!
Here's a great example: At a large natural gas-fired power plant, where they use waste heat to generate steam and energy, they were puzzled that their boiler wasn't producing as much steam as expected.
R&R and Tetra Engineering Group Inc. were asked to solve the issue with reduced steam production.
An inspection had shown that a significant amount of hot flue gas was bypassing the boiler tubes, where the heat was supposed to be transferred.
R&R Consult conducted a CFD analysis, which revealed that 6.3% of the flue gas was bypassing the boiler tubes without transferring heat. The analysis also showed that the flue gas was instead being directed along the sides of the boiler and between the modules that were supposed to capture the heat. This was the cause of the reduced performance.
Based on our results, Tetra Engineering installed covering plates to reduce the bypass flow. This improved the boiler's performance and increased electricity production.
It is always satisfying when we can help solve complex challenges like this. Do your systems also need a check-up or optimization? Give us a call!
Work done in cooperation with James Malloy and David Moelling from Tetra Engineering.
More examples of our work https://www.r-r-consult.dk/en/cases-en/
Cosmetic shop management system project report.pdfKamal Acharya
Buying new cosmetic products is difficult. It can even be scary for those who have sensitive skin and are prone to skin trouble. The information needed to alleviate this problem is on the back of each product, but it's thought to interpret those ingredient lists unless you have a background in chemistry.
Instead of buying and hoping for the best, we can use data science to help us predict which products may be good fits for us. It includes various function programs to do the above mentioned tasks.
Data file handling has been effectively used in the program.
The automated cosmetic shop management system should deal with the automation of general workflow and administration process of the shop. The main processes of the system focus on customer's request where the system is able to search the most appropriate products and deliver it to the customers. It should help the employees to quickly identify the list of cosmetic product that have reached the minimum quantity and also keep a track of expired date for each cosmetic product. It should help the employees to find the rack number in which the product is placed.It is also Faster and more efficient way.