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1603 articles for “structure”
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Elucidation of Synthetic Mechanism Involved in the Conversion of Zwitterionic Clonixin to Carboxamide Side-Product
Abstract: N-(3-Chloro-2-methylphenyl)-2-oxo-1,2-dihydropyridine-3-carboxamide is obtained as a by-product during the synthesis and crystallization of Clonixin (2-(3-chloro-2-methylanilino)nicotinic acid) and its polymorphs, respectively. This conversion was unexpected and it changed the usual investigation path way enabling the formation of neutral and zwitterionic polymorphs in our study on Clonixin in contrary to studies of 2-(p-tolylamino) nicotinic acid investigation. The same conversion is checked in the other synthesized analogs such as 2-(phenylamino)nicotinic acid (PNA), 2-(methyl(phenyl)amino)nicotinic acid …
Published in International Journal of Chemical Synthesis and Chemical Reactions · Vol. 2, Issue 1, 2016 Read article
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Synthesis and Characterization of Polyurethane in Powder Form
Abstract: Polyurethanes (PUs) are defined as a class of versatile materials with great potential for use in different applications, especially based on their structure-property relationships. Their specific mechanical, physical, biological, and chemical properties are attracting significant research to tailor made PUs for various applications. Enhancement of the properties and performance of PU-based materials are achieved through altering the production process or the raw materials used in their fabrication or via the …
Published in International Journal of Chemical Synthesis and Chemical Reactions · Vol. 4, Issue 2, 2018 · pp. 22–27 Read article
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Review on Production of Activated Carbon from Agricultural Biomass Waste
Abstract: Agricultural biomass waste is one of the main residue largely generated in the environment and was used as precursor for the synthesis of activated carbon as adsorbents, support on catalyst, electric charge storage, micro pore structure, high adsorption capacity material. Recently, many research paper can be found on particular biomass feedstock and activation technique to produce activated carbon. Consequently, main focus should be taken to the relevance those precursor effectiveness …
Published in International Journal of Renewable Energy and its Commercialization · Vol. 7, Issue 2, 2021 · pp. 26–37 Read article
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A Study of Thermodynamics of Ligand - Receptor Interaction in Chemical Sciences
Abstract: The formation and separation of definite non-covalent interactions between varieties of macromolecules play a crucial role in the function of biological systems. During the last few years, three main lines of research led to a dramatic improvement of our understanding of these important phenomena. First, combination of genetic engineering and X ray crystallography made available a simultaneous knowledge of the precise structure and affinity of series or related ligand-receptor systems …
Published in International journal of Thermodynamics and Chemical Kinetics · Vol. 3, Issue 2, 2017 · pp. 12–16 Read article
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Crystals (Thermotropic phases and Lyotropic phases) in Physical Properties
Abstract: In the current years there has been a cumulative growth to add the numerous nanomaterials to liquid crystals which is encouraged via frequent elements of resources advance. (i) accumulation of nanomaterials can conversion and thus melody the belongings of the liquid crystal (ii) inventive functionalities can be added to the liquid crystal (iii) the self-organization of the liquid crystalline formal can be abused to pattern systematic structures or to assignment …
Published in International journal of Thermodynamics and Chemical Kinetics · Vol. 5, Issue 2, 2019 · pp. 16–22 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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Analysis of Flat Slab by MATLAB Coding
Abstract: A reinforced concrete slab supported by columns with, or without drop is called as flat slab. The columns for flat slab provided with, or without column heads. Flat slab is a universal structural component widely used in construction now-a-days. Flat slab requires minimum depth as compared to other slab, hence saving in material cost, speedy construction and it allows flexible column grids. MATLAB programming helps in high-performance numerical computation and …
Published in International Journal of Construction Engineering and Planning · Vol. 2, Issue 1, 2016 · pp. 47–53 Read article
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Isolation Technique in Bridge, Building
Abstract: Seismic Isolation is simple structural design approach to mitigate or reduce earthquake damage potential. It is easiest to see the principle at work by referring directly to the most widely used of these advanced techniques, known as ‘Base Isolation’. A base isolated structure is supported by a series of bearing pads, which are placed between the buildings and building foundation. Base isolation has now been used in numerous building in …
Published in International Journal of Construction Engineering and Planning · Vol. 2, Issue 2, 2016 · pp. 1–4 Read article
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Terrace Garden - Alternative for Passive Cooling
Abstract: Rising development of concrete jungles has questioned the sustainability and ecological aspect of many cities and even countries. The paper bridges the gap on how a single green element – a terrace garden helps in dealing with this crisis and harness the concept of sustainability. Urban greenery and urban landscaping, is a growing trend and using these terraces as an aesthetic aid is one of the wide range benefits it …
Published in International Journal of Construction Engineering and Planning · Vol. 9, Issue 1, 2023 · pp. 9–29 Read article
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Vacuum Dewatering During Concreting: Modern Construction Method
Abstract: In the RCC construction, water–cement ratio is detrimental for concrete. We always try to restrict the water–cement ratio because we want structure achieve its higher strength rather it is necessary for structure life. For the chemical reaction which is generated in cement and water, water–cement ratio of less than 0.38, whereas the adopted water–cement ratio is much more than that mainly because of the requirement of workability. After the requirement …
Published in International Journal of Construction Engineering and Planning · Vol. 3, Issue 1, 2017 · pp. 6–12 Read article
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Evaluation of Strength in Natural Bricks by Using Mineral Admixtures
Abstract: In the construction field nowadays substructures and superstructure are adopted by bricks only for the framed type of structure and also load bearing wall adopted for bricks in super structure works. Last four decades in our Tamil Nadu more number of bricks were used for the buildings. In this work, it is decided to design an alternate to clayey soil with addition of stabilisers such as fly ash, rice husk …
Published in International Journal of Construction Engineering and Planning · Vol. 3, Issue 1, 2017 · pp. 85–89 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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Study of Strong-Column Weak-Beam Concept on Seismic Capacity of Buildings of Varying Heights
Abstract: The design philosophy of the strong-column weak-beam (SCWB) in which plastic flexibility is allowedto occur only in beams while the expanded columns are widely accepted in the independentearthquake design codes of steel. Under this method of harvesting, earthquake power is dispersedmainly by plastic hinges on beams and columns. The plastic strength of flexible beams and columnbases can greatly affect the response of the SCWB framework. During the lasting earthquake, theplastic …
Published in International Journal of Construction Engineering and Planning · Vol. 7, Issue 1, 2021 · pp. 36–47 Read article
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Re-Characterization of Strength Properties of Asphalt Concrete Mixtures Using Non Bituminous Modifier – Candle Wax
Abstract: Improving the performance of asphalt concrete mixtures synonymous with flexible pavement has been a major concern in highway engineering. However, design of flexible pavement begins with proper material characterization to ensure that designs are appropriate. It is also pertinent to say that sometimes if not most times the properties of the individual materials that make up the pavement structure falls short of desired expectations. This has led to exploring techniques …
Published in International Journal of Concrete Technology · Vol. 2, Issue 1, 2016 · pp. 30–36 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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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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Aerocon Bricks
Abstract: Various low-cost housing projects are considered by a growing demand chiefly due to urbanisation. The collection of building materials should chance the requirements of local conditions to enhance quality of life for the most needed ones by building new structures and/or by improving existing structures. Various studies showed that a big variety of wall materials have been used in different building systems with traditional and modern construction methods, but only …
Published in International Journal of Concrete Technology · Vol. 4, Issue 2, 2018 · pp. 37–48 Read article
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Modeling Concrete Tensile Strength from Fly Ash and Alccofine as Partial Replacement for Cement
Abstract: Tensile strength development were carried applying derived modeling and simulation, this study is to monitor the behaviour of the material in tensile state, Several materials has been used as modifiers or partial replacement, but the application of alccofine as a micro-fine materials has not been thoroughly applied by experts, this product has fine particles that is more finer than cement including other materials, the tensile strength behaviour from the studies …
Published in International Journal of Concrete Technology · Vol. 6, Issue 2, 2020 · pp. 22–38 Read article
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Study the Behavior of Single cell Rectangular box girder bridge with the help of AASHTO and IRC loadings
Abstract: Generally bridge carries a road or railway across natural or artificial obstacles such as river, canalor another railway or another road. Bridge construction is one of the difficult traffic infrastructureconstructions. The structural method of different girder bridge having no of girder. The modeling andanalysis of bridge structure is little bit more time consuming and costly as compared to othersstructure. In this paper present an investigation into behaviors like displacement bending …
Published in International Journal of Concrete Technology · Vol. 7, Issue 1, 2021 · pp. 1–6 Read article
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DETAILED STUDY ON THE PROPERTIES OF PLASTIC CONCRETE CUTOFF WALL MATERIALS MIXED WITH WATERPROOFING ADMIXTURES
Abstract: This study presents the results of a comprehensive experimental work performed to characterize the mechanical and hydraulic properties of plastic concrete materials added with water-resisting and crystalline admixture as Permeability Reducing Admixture for Hydrostatic conditions (PRAH). The mechanical properties, deformation, permeability nature, triaxial stress-strain curve, hydration products, phase composition, and pore structure of plastic concrete with various proportions of PRAH were investigated. In addition to that, retarding admixture was used …
Published in International Journal of Concrete Technology · Vol. 9, Issue 1, 2023 · pp. 1–15 Read article