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661 articles for “replacement”
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Comparison between Total Hip Replacement and Bipolar Hip Replacement
Abstract: Purpose: A prospective, randomized study was performed to compare the clinical and functional outcomes at 5–15 years of follow-up in two groups of patients treated with either bipolar hip replacement or total hip replacement (THR). Materials and Methods: A total of 509 patients with either femoral neck fractures, degenerative arthritis, systemic arthritic diseases, avascular necrosis of the femoral head or pathologic fractures underwent surgery between May 2000 and June 2012. …
Published in Research and Reviews : Journal of Surgery · Vol. 8, Issue 2, 2019 · pp. 12–17 Read article
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TO STUDY THE EFFECT OF PARTIAL REPLACEMENT OF CEMENT WITH MARBLE POWDER AND PARTIAL REPLACEMENT OF SAND WITH SURKHI
Abstract: The construction industry worldwide has made remarkable progress in building innovative structures using different materials. Today’s increasing population demands more sustainable ways of living. Waste matter produced in the day-to-day life as well as industrial waste has become a cause of concern. Many waste materials have been used in construction industry like flyash, saw dust, natural fibers residue etc. Keeping in mind the above concern a low cost, environment friendly …
Published in Journal of Construction Engineering, Technology & Management · Vol. 14, Issue 2, 2024 · pp. 46–54 Read article
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Experimental Test for the Replacement of Aluminum Sheets Instead of Steel Sheets in the Automotive Industry and the Effect of this Replacement
Abstract: Nowadays, vehicles cause air pollution due to high fuel consumption, and it has a direct relationship with increasing vehicle weigh. The increase of pollution will lead to rise in greenhouse gases that will cause special damages during a long period time. In this paper, instead of using steel sheets, aluminum sheets are proposed for the vehicle body and its interior components. It is attractive to increase its speed by reduction …
Published in Journal of Automobile Engineering and Applications · Vol. 7, Issue 3, 2020 · pp. 34–39 Read article
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Evaluation of Compressive Strength of Concrete Using Fly Ash, Silica Fume, and Steel Slag as Cementitious and Aggregate Replacements
Abstract: This study comprehensively investigates the influence of supplementary cementitious materials and industrial by-products—specifically fly ash, silica fume, and steel slag—on the compressive strength of concrete. The primary objective is to evaluate the impact of both individual and combined replacements of cement and aggregate components on concrete performance. The research analyzes how varying proportions of these materials affect the strength characteristics of the concrete mixtures. Experimental results demonstrate that increasing the …
Published in Journal of Construction Engineering, Technology & Management · Vol. 15, Issue 3, 2025 · pp. 1–6 Read article
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Product Replacement Strategies for Perishable Inventory Systems using Queuing Theory
Abstract: Inventory management plays a crucial role in managing production processes as well as the supply chains. The study of inventory systems with perishable products has a special significance as it influences the cost and revenue of a firm. Product replacement strategies act like safeguards to the retailers (firms) dealing with the business of perishable products. An inventory system with perishable products and product replacement is studied. A finite capacity multi-channel …
Published in Journal of Production Research & Management · Vol. 2, Issue 1-2-3, 2012 · pp. 18–25 Read article
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Experimental Investigation on Mechanical Properties of Concrete Replacing of Steel Slag as Coarse Aggregate
Abstract: The basic objective of this study was to identify alternative source of good quality aggregate which is depleting very fast due to the fast pace of construction activities. This paper describes the optimum level of replacement of Energy Optimized Furnace (EOF) steel slag by weight of coarse aggregate for a mix proportion of M20 grade concrete to find out the optimum ratio of steel slag. Civil Engineers have been challenged …
Published in Journal of Structural Engineering and Management · Vol. 4, Issue 2, 2017 · pp. 44–49 Read article
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Enhancing Concrete Performance With GGBFS: An Analysis of Strength Characteristics at Various Replacement Levels
Abstract: This study investigates the effect of ground-granulated blast furnace slag (GGBFS) as a partial replacement for cement on the mechanical properties of concrete. The primary objective was to assess the compressive, flexural, and split tensile strengths, along with the modulus of elasticity, at different replacement levels of cement with GGBFS and at distinct curing ages of 7, 28, and 56 days. Concrete mixes were prepared by replacing cement with GGBFS …
Published in Journal of Polymer & Composites · Vol. 13, Issue 2, 2025 · pp. 121–138 Read article
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Effect of Ground Granulated Blast Furnace Slag as Partial Cement Replacement on Compressive Strength of Concrete
Abstract: AbstractThe main objective of this research work is to determine the optimum replacement percentageof GGBS which can be suitably used. To fulfill the objective, various properties of concreteusing GGBS have been evaluated. Mix design has been arrived for M25 concrete. Fineness,specific gravity (cement and GGBS), normal consistency, initial and final setting time andcompressive strength of cement have been found out. Particle size distribution, bulking of fineaggregate, specific gravity, water absorption …
Published in Journal of Construction Engineering, Technology & Management · Vol. 7, Issue 3, 2017 · pp. 1–10 Read article
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The Study on Properties of Concrete with Cement Partially Replaced by Corn Cob Ash
Abstract: In recent times, instead of cement many alternative materials are being used as the binding material in the construction sector. One such binding material that can be used as a partial replacement for cement is corn cob ash. Corn cob is agricultural waste product obtained from maize or corn. Corn cob is the hard thick cylindrical central core of maize. The tests were carried out on the raw materials to …
Published in Journal of Construction Engineering, Technology & Management · Vol. 6, Issue 1, 2016 · pp. 78–83 Read article
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Appealing Recent Trends of Glass/Carbon Fiber Replacing Conventional Materials
Abstract: Use of glass reinforced fiber plastic and carbon reinforced fiber plastic is well known in many industries and have significant impact for the industrial revolution. Researchers and manufactures across these industries are always searching for opportunities to use GFRP and CFRP for new components. Other industries are finding the prospects to use these material for possible future. Many properties of these materials are favored and attracting most of the industrial …
Published in Journal of Polymer & Composites · Vol. 7, Issue 1, 2019 · pp. 1–6 Read article
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Feasibility Studies on Cement Mortar Replaced with Ceramic Tile Waste as Secondary Binder
Abstract: This paper presents the results of experimental works focused on replacement of ceramic waste materials with cement in the production of cement mortar. The aim of this research work is to find the optimum percentage replacement of cement by ceramic tile waste in percentage replacement (5 to 25, 50 and 100%) mortar mixes. The ceramic waste tiles are mechanically crushed down ultrafine ceramic waste (UCW) powder passing 600 μ and …
Published in Recent Trends in Civil Engineering & Technology · Vol. 6, Issue 1, 2016 · pp. 68–75 Read article
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Optimization of Cement Replacement by Fly Ash in Compressive Strength of Portland Cement Concrete
Abstract: The production of cement has been known for its additive role in environmental pollution. As a measure of abatement of pollution effort, scientist have evoked the concept of diluting cement with various pozzolanic additive like fly ash, blast furnace slag etc. Many of these additives were found to be acceptable for cement replacement, but their exact role and efficacy remains elusive. In the present study, fly ash was added as …
Published in Recent Trends in Civil Engineering & Technology · Vol. 7, Issue 1, 2017 · pp. 24–35 Read article
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Evaluating the Structural Performance of Concrete with Partial Replacement of Fine Aggregate by Plastic Waste
Abstract: This work evaluates the performance of concrete incorporating plastic waste as a partial replacement for fine aggregate, at replacement levels of 0%, 5%, 10%, 15%, and 20%. Various tests were conducted on fresh and hardened concrete to assess workability, strength, and durability. The slump cone and compaction factor tests were used to measure workability, yielding a slump range between 25–30 mm and a compaction factor of 0.98, indicating medium workability. …
Published in Journal of Structural Engineering and Management · Vol. 11, Issue 3, 2024 · pp. 69–75 Read article
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Utilization of Pond Ash as a Partial Replacement of Fine Aggregate Using Alccofine in Conventional Concrete
Abstract: Pond ash is the byproduct and is produce from coal plants. These plants release byproduct in major quantity which effects the environment. In this paper, an experimental work has been done on the conventional concrete with pond ash as replacement of fine aggregate. The grade of the concrete is M-40 and nine concrete mixes named as F1, F2, F3, G1, G2, G3, G4, G5 and G6 were prepared with different …
Published in Journal of Construction Engineering, Technology & Management · Vol. 7, Issue 2, 2017 · pp. 12–16 Read article
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Partial Replacement of Cement by Kota Stone Slurry in Mortar
Abstract: AbstractKota stone is one of the lime stones which is found in Kota, Jhalawar, and Chittor districts of Rajasthan. It is a very fine-grained siliceous calcium carbonate rock of sedimentary nature. During cutting and polishing process, a lot of material remains unused, and this waste may be called as Kota stone cutting and polishing waste. The disposal of Kota Stone Slurry (KSS) from the Kota stone industry is one of …
Published in Recent Trends in Civil Engineering & Technology · Vol. 7, Issue 3, 2017 · pp. 8–13 Read article
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Experimental Investigation on Concrete with Partial Replacement of Cement by Fly Ash
Abstract: Fly ash is increasingly used as a supplementary cementitious material to partially replace cement in concrete. This paper presents an experimental investigation on the strength properties of concrete with varying percentages of fly ash replacement, from 0% to 25% by weight. The fresh, hardened, and durability properties of high performance concrete with fly ash percentages of 5%, 10%, 15%, 20% and 25% were studied. The test results indicate that 20% …
Published in Recent Trends in Civil Engineering & Technology · Vol. 13, Issue 3, 2023 · pp. 1–14 Read article
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Evaluation of Write Sequence Reordering Based Buffer Replacement Algorithms for Flash Memory Based Systems
Abstract: Many page replacement algorithms have been developed for disk-based systems. All of them consider the hit rate as a key performance measure. Flash memory has different characteristics than hard disks, such as asymmetric I/O latency among read, write, and erase operations. The read operation is faster than the write and erase operation, and it does not support in-place updates. Besides, write operations shorten the life of flash memories. Therefore, the …
Published in Journal of Computer Technology & Applications · Vol. 14, Issue 2, 2023 · pp. 36–45 Read article
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EXPERIMENTAL STUDY ON REPLACEMENT OF CEMENT AND FINE AGGREGATE WITH MARBLE DUST AND COPPER SLAG
Abstract: With the ever-growing challenge of managing escalating waste materials globally, this paper explores sustainable solutions in construction through the utilization of marble dust and copper slag. The rapid generation of waste poses severe environmental and health threats, necessitating innovative strategies for responsible waste management. Local availability and the potential to enhance concrete strength make marble dust and copper slag attractive candidates for the partial replacement of cement and fine aggregate. …
Published in Journal of Polymer & Composites · Vol. 12, Issue 1, 2024 · pp. 169–176 Read article
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Interfacial Performance and Structural Stability of Repaired vs. Replaced Polymer-Based Composites: A 3-Year Retrospective Analysis of 'Patch-up' Restorative Engineering
Abstract: Objective: This retrospective study aimed to evaluate the clinical longevity and interfacial success of repairing aged polymer-based composites versus complete replacement, focusing on the integration between the existing polymer matrix and the new restorative material. Materials and Methods: A retrospective clinical audit was conducted on 50 cases (n = 50) of posterior restorations with localized defects. The sample was categorized into: Group A (n = 25), where defective sites were …
Published in Journal of Polymer & Composites · Vol. 14, Issue 3, 2026 · pp. 180–187 Read article
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Cost Objective Model for Construction Equipment Replacement Policies
Abstract: Most construction companies, particularly companies whose projects are primarily constructed with earthmoving equipment, depend heavily on their construction equipment fleets, which represent substantial locked capital investment and require acceptable utilization levels to recover expenses incurred and losses from this investment. The equipment, which possesses a finite physical and economic life, inevitably requires replacement, and equipment maintenance costs increase with the equipment life. Different methodologies are employed to establish the replacement …
Published in Journal of Construction Engineering, Technology & Management · Vol. 4, Issue 2, 2014 · pp. 1–13 Read article