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904 articles for “mechanics”
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Corrosion Protection of Copper Metal by Nanocoating in Nitrogen dioxide Environment
Abstract: Nitrogen dioxide is an acidic gas. It absorbs moisture to produce nitric acid. It creates corrosive medium for copper metal. It forms corrosion cell on the surface of copper and accelerate corrosion reactions. The corrosion cell formation is written as: Cu|Cu2+||H+|H2 thus corrosion reactions start and copper is oxidized into Cu2+surface and it is oxidized into Cu2+ whereas H+ ion is reduced into H2. Nitric acid environment copper exhibits galvanic, …
Published in International journal of Thermodynamics and Chemical Kinetics · Vol. 8, Issue 1, 2022 · pp. 1–11 Read article
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Chemical Process of Diamonds and CVD Methods
Abstract: Many times, first-order kinetics can be seen in gas-phase decomposition events. However, it is now known that such reactions are actually governed by bimolecular processes. Bimolecular collisional activation to an energy sufficient for decomposition sets off the reaction. Gas-phase processes occurring in catalytic cycles are also to blame for the development of the ozone hole in the polar stratosphere in the spring, albeit heterogeneous mechanisms must also be taken into …
Published in International journal of Thermodynamics and Chemical Kinetics · Vol. 8, Issue 1, 2022 · pp. 12–17 Read article
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Review of Silicon Reactivity of Self-assembled monolayer and its Properties
Abstract: In most cases, the assumption of perfect high viscosity between silicon and silver underlies the modelization of silicene on Ag(111). According to recent reports, growth does not take place on top of the Ag(111) terraces, but rather within the first layer of them. In this article, we present the results of a study that combines scanning tunnelling microscopy and density functional theory to simulate the nucleation process and reveal the …
Published in International journal of Thermodynamics and Chemical Kinetics · Vol. 8, Issue 1, 2022 · pp. 29–33 Read article
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High-rate Deformation of Condensed Matter Followed by Self-Organization on the Mesoscale
Abstract: The purpose of the paper is to demonstrate the advantages of the developed self-consistent non-local approach to the description of processes in condensed matter far from local thermodynamic equilibrium and new opportunities for understanding and practical use of such phenomena as self-organization, multi-scale energy exchange and turbulence. This interdisciplinary approach, based on rigorous results obtained in non-equilibrium statistical mechanics with the use of feedback control laws, offers a universal mathematical …
Published in International journal of Thermodynamics and Chemical Kinetics · Vol. 8, Issue 2, 2022 · pp. 13–38 Read article
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Energy Conservation in Building Construction
Abstract: Energy is the ability to do work. Energy intensity is a measure of the energy efficiency of a nation’s economy and is calculated as units of energy per unit of Gross Domestic Product. There are different forms of energy like chemical, mechanical, electrical, thermal, magnetic, nuclear, etc. Most commonly, we use energy in the form of electrical energy. Generally energy is produced from fossil fuels but their resources are limited. …
Published in International Journal of Construction Engineering and Planning · Vol. 1, Issue 2, 2015 · pp. 20–22 Read article
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Business Process Re-engineering-Re-Aligning Processes for Market Leadership in Changing Business Environment
Abstract: Business environment of a firm is often characterized by a change and instability due to launches of new products and technologies by rival companies, changes in government policies, and on account of factors related to globalization and shifting consumer preferences. As a result of interaction between these complex factors, business outlook and the existing business models of established companies as well as other upcoming companies are affected. Companies are thus …
Published in International Journal of Construction Engineering and Planning · Vol. 3, Issue 2, 2017 · pp. 39–59 Read article
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Study of the Effect of Water Retarding Concrete Admixtures on the Properties of Concrete
Abstract: Water retarding concrete admixtures and super plasticizer are extensively utilized to recover the structural and mechanical properties of fresh and hardened concrete. These admixtures are more regularly used in pre-stressed concrete, slim components with overfilled and densely filled reinforcement, beams and slabs pre-cast basics and long slender column. In current decades, marvelous success has been attained in the progression of chemical admixtures for Portland cement. Most efforts have concentrated on …
Published in International Journal of Construction Engineering and Planning · Vol. 4, Issue 1, 2018 · pp. 10–14 Read article
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Predictive Model to Monitor the Rate of Dissolved Nitrogen Influenced by Void Ratio in Silty and Gravel Bed Formation in Coastal Area of Warri Delta State of Nigeria
Abstract: This paper evaluated the rate of dissolved nitrogen in silty and gravel soil formation, the study is to monitor the rate of dissolved nitrogen at different strata to phreatic bed, homogeneous formation were observed to have deposit in the study location, organic soil were insignificant since the formation deposited slight quantity, the predominant formation is homogeneous silty and grave soil strata, the void ratio deposition were at high rate in …
Published in International Journal of Construction Engineering and Planning · Vol. 4, Issue 1, 2018 · pp. 42–48 Read article
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Monitoring Fungi Transport Influenced by Heterogeneous Porous Sand Gravel Formation in Coastal Area of Port Harcourt
Abstract: This paper monitors the transport of fungi concentration in sand gravel formation, the formation were observed to develop heterogeneity in porous deposited strata, the migration process of fungi were observed from the simulation values through graphical representation, fluctuation of fungi concentration were experienced on the process of migration in exponential phase, the deposition of micronutrients were found to be under fluctuation in the soil thus affect the growth rate of …
Published in International Journal of Construction Engineering and Planning · Vol. 4, Issue 1, 2018 · pp. 49–57 Read article
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Clash Detection in Appropriate Technology Building Using Building Information Modelling (BIM)
Abstract: Building Information modelling (BIM) is a highly efficient software in Architecture, Engineering and construction (AEC industry). Clash detection technique is used to minimize the error as well as to minimize the cost and time. Especially in 2D drawings, lots of problems emerges at the time of execution. One of the best tools used in this project is clash detection tool which coordinates the building system in 3D models. This clash …
Published in International Journal of Construction Engineering and Planning · Vol. 6, Issue 1, 2020 · pp. 15–24 Read article
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Impact of Sugarcane Molasses on Compressive Strength and Workability
Abstract: Molasses used as admixture increase the workability, it is a by-product of sugar industry. In this study, mechanical property such as compressive strength and workability of concrete adding fly ash and sugarcane molasses has been investigated. Adding the molasses in concrete increase the compressive strength, delay the initial and final setting time, reduced the bleeding and segregation of concrete and decrease the W/C ratio. The compressive strength test results showed …
Published in International Journal of Construction Engineering and Planning · Vol. 6, Issue 1, 2020 · pp. 1–5 Read article
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Effect of Elevated Temperature on Compressive Strength and Flexural Strength of Fiber Reinforced Concrete
Abstract: Now a day concrete is being used extensively in the construction that might be subjected to elevated temperatures. The behavior of concrete structures at elevated temperatures is significant importance in predicting the safety of structures in response to certain accidents or particular service conditions. This paper deals with the mechanical properties of concrete with steel fibers subjected to temperatures up to 500°C. The specimens were kept in oven for 1 …
Published in International Journal of Concrete Technology · Vol. 3, Issue 1, 2017 · pp. 19–32 Read article
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An Experimental Study on Concrete by Replacement of Coarse Aggregate with Demolished Building Waste in Crushed Concrete
Abstract: A large amount of construction and demolition wastes are produced annually in India. These waste materials require a large place to dispose and then the disposal of wastes has become a severe problem. The continuous use of natural resources for making conventional concrete leads to the reduction in their availability and results in the increase of the cost of the coarse aggregate and fine aggregate. The possible use of recycling …
Published in International Journal of Concrete Technology · Vol. 4, Issue 1, 2018 · pp. 25–28 Read article
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Properties of Green Concrete Using Light Weight Aggregates
Abstract: With the growing distress over the needless exploitation of natural aggregates, synthetic lightweight aggregate produced from the environmental waste is a feasible new source of structural aggregate material. Unique with expanding worry over the inordinate misuse of characteristic totals, engineered light weight total delivered from natural waste is a feasible new wellspring of auxiliary total material. The engagements of auxiliary review lightweight cement minimise remarkably the self-heap of a structure …
Published in International Journal of Concrete Technology · Vol. 4, Issue 1, 2018 · pp. 11–14 Read article
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Utilization of Paper Waste in Making of Cement Concrete
Abstract: Cement manufacturing industry is one of the main carbon dioxide constructing sources moreover burning of fossil fuels and deforestation and concrete industry is one of the major consumers of natural virgin materials. India is the country that is facing a severe contest in the disposing the waste in landfills throughout the country. The landfill disposal is resulting in high disposal costs and potential environmental problems. If the current situation continues, …
Published in International Journal of Concrete Technology · Vol. 4, Issue 1, 2018 · pp. 36–41 Read article
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TO IMPROVE THE EFFICIENCY OF SILICA FUME CONCRETE
Abstract: A suitable introduction of silica fume in concrete improves both the mechanical and chemical properties of the concrete. The long-live compressive strength of silica-fume concrete has been recently questioned by some researchers and they were regular in touch of it.This paper reports the results of compressive strength data on strength of silica which is on 4- to 6-year-old cores attained from well-documented field experiments which where both silica-fume and non-silica …
Published in International Journal of Concrete Technology · Vol. 5, Issue 1, 2019 · pp. 39–44 Read article
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Compressive Behaviour of Lightweight Aggregate Concrete by Blending LECA
Abstract: Present work deals with the lightweight aggregate concrete (LWAC) by using Lightweight Expanded Clay Aggregate (LECA) as lightweight aggregate, LECA is used as replacement to the natural coarse aggregate in the concrete, in this experimental work percentage of lightweight aggregates are varied to study the change in the properties of concrete made by blending LECA. LECA content was varied from 20% to 100% at an increment of 20%. Total 6 …
Published in International Journal of Concrete Technology · Vol. 5, Issue 2, 2019 · pp. 10–15 Read article
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A Study on Self Compacting Concrete using Portland Pozzolana Cement
Abstract: Self-compacting concrete (SCC) is a type of highly flowable concrete that fills each and every corner of congested formwork without the need for mechanical vibration as it is placed by means of its own weight. Generally, the SCC is prepared by using Ordinary Portland Cement (OPC) with mineral and chemical admixtures. Portland Pozzolana Cement (PPC) itself contains some amount of fly ash, thus given the motivation to prepare the SCC …
Published in International Journal of Concrete Technology · Vol. 6, Issue 2, 2020 · pp. 1–9 Read article
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Study on Properties of Concrete Cured With Poly Ethylene Glycol-600
Abstract: After water, concrete is the most using material globally. Without concrete, the world is unimaginable. The foundation of civilization is concrete. Coarse aggregate, cement ,fine aggregate and water are the main ingredients in concrete, which requires curing to attain its strength. Concrete must therefore cure for 28 days in order to complete the necessary hydration, desired strength. For the traditional curing processes, a lot of water is needed. This becomes …
Published in International Journal of Concrete Technology · Vol. 8, Issue 2, 2022 · pp. 14–21 Read article
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Experimental Investigation on the Properties of Concrete Replacing Waste Plastic as Aggregates for Solving Waste Management Problem
Abstract: Solid waste management is one of the growing problems of every country. As part of this ongoing program to consider the growing waste management, pollution problem, and prevention framework in India, the Ministry of Environment has suggested various approaches and ways through which we can either recycle or use the most polluting materials like plastic. The present study covers one of the ways through which to recycle one of the …
Published in International Journal of Concrete Technology · Vol. 9, Issue 1, 2023 · pp. 17–25 Read article