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1216 articles for “species”
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Study of Durability Properties of Bagasse Ash Concrete and Its Behaviour when Exposed to Elevated Temperatures
Abstract: The major driver for the economic growth and social progress of any country is its construction sector. In India, it is estimated that construction contributes 8% to 9% to GDP and this share is likely to increase in coming years. High-performance concrete made from ordinary Portland cement (OPC) and various supplementary cementitious materials (SCM) are alarmingly finding their use in construction worldwide. Bagasse ash (BA), one such SCM, the agro-industrial …
Published in International Journal of Construction Engineering and Planning · Vol. 8, Issue 2, 2022 · pp. 51–62 Read article
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Fresh and Hardened Properties of High Performance Concrete with Weld Slag as Fine Aggregate
Abstract: This research centers on the incorporation of welding slag, the residue remaining after the welding process, as fine aggregates in the production of high-performance concrete with a compressive strength of 70 MPa. The chemical and physical characteristics of welding slag aggregates (WSA), such as chemical compositions, specific gravity, SEM images, XRD, and EDS analysis, were investigated. Additional investigations were carried out by substituting welding slag with standard sand at varying …
Published in International Journal of Construction Engineering and Planning · Vol. 9, Issue 2, 2023 · pp. 29–36 Read article
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Influence of Type and Size of Fine Aggregate on Glass Fiber Reinforced Self-Compacting Mortars (GFRSCM)
Abstract: Abstract This paper addresses the fresh and hardened state behavior of glass fiber reinforced self-compacting mortars (GFSCMs) with various types and sizes of fine aggregate. Mini-slump flow and mini V-funnel tests were performed to evaluate the workability of GFSCMs. Compressive strength, split tensile strength, and flexural strength tests at the end of 28 days of water curing were determined. Water sorptivity tests were conducted on 28-day cured cube specimens. The …
Published in International Journal of Concrete Technology · Vol. 1, Issue 1, 2015 · pp. 63–71 Read article
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Analysis of Gravity Dam for Different Rectangular Openings Sizes
Abstract: Gravity dams are very important structures. Different parameters which come in loading combination are temperature, dead weight, earthquake, hydrostatic pressure and water load. From the study, it has been found that the properties which affect the performance of a dam are static properties and thermal properties. Static properties of the concrete dam are strength, Poisson’s ratio and elastic modulus while thermal properties are specific heat, thermal expansion coefficient, thermal conductivity …
Published in International Journal of Concrete Technology · Vol. 3, Issue 2, 2017 · pp. 11–17 Read article
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An overview on the rheology of recycled aggregate concrete with the influence of chemical admixtures
Abstract: : Concrete is one of the most widely used construction material because of its property to be moulded into any kind of structure and shape due to its fluidity at early stages. The fresh properties of concrete can be characterized by its flow behaviour. Rheology is the scientific description of flow properties. Super-plasticizers and air-entrainers are some of the most used chemical admixtures that affect the rheological parameters of fresh …
Published in International Journal of Concrete Technology · Vol. 5, Issue 1, 2019 · pp. 14–24 Read article
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Effect of Steel Slag and Quarry Dust on the Flexural Strength of Concrete
Abstract: The effect of quarry dust and steel slag on the flexural strength of concrete has been experimentally studied and reported in this paper. Concrete used was prepared by replacing 75% of steel slag in replacement with sand and replacing cement by 5%, 10%, 15% and 20% with quarry dust. Also, conventional concrete was prepared as reference concrete for comparison. 100-mm cube and 100 mm × 100 mm × 500 mm …
Published in International Journal of Concrete Technology · Vol. 5, Issue 1, 2019 · pp. 8–13 Read article
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Effect of Fly Ash on Compressive Strength of Mortar and Brick Aggregate Concrete
Abstract: This paper presents tse influence of fly ash on compressive strength of mortar and brick aggregate concrete. A lot of tests were done about strength of fly ash concrete all over the world. In those experiments, stone chips were generally used as coarse aggregate. In this experiment locally available materials such as burnt clay brick chips as coarse aggregate, sand and fly ash available in Bangladesh (Indian fly ash) were …
Published in International Journal of Concrete Technology · Vol. 7, Issue 1, 2021 · pp. 7–23 Read article
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An Investigation on Aggregate Distribution in Concrete
Abstract: Falling behavior is generally studied by mathematicians. The first study is conducted by Comte de Buffon with name “Falling needles experiment” and is widely known. Buffon researched the falling needle behavior finding the fall of needles in relation with Pi. However, although aggregates are fallen to the mould in cement paste, falling behaviour of concrete is rarely studied considering the statistical parameters of the fall.Accordingly, an experimental study is conducted …
Published in International Journal of Concrete Technology · Vol. 7, Issue 2, 2021 · pp. 1–8 Read article
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Impact of Additives on the Split Tensile Strength of Roller Compacted Concrete
Abstract: Additives are implemented as partial replacement of Portland cement in concrete to enhance the required physical properties. In the present investigation, roller compacted concrete slab samples were prepared using gap and dense aggregate gradation. Three percentages of Portland cement were adopted, (16, 12, and 10) % by weight of aggregates. Three types of additives, (hydrated lime, fly ash, and fumed silica) were implemented as partial substitute of Portland cement. Core …
Published in International Journal of Concrete Technology · Vol. 7, Issue 2, 2021 · pp. 9–15 Read article
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Effect of RHA on Strength of M20 Concrete under both Acidic and Non-acidic Medium by Using Ultrasonic Pulse Velocity Test
Abstract: This work investigates the effects of adding rice husk ash (RHA) on strength of M20 cement concrete under both acidic and non-acidic medium by using NDT i.e., Ultrasonic Pulse Velocity Test. M20 strength concrete was produced using locally available materials. The rice husk ash (RHA) passing 200 micron and 325-micron sieves taken as a 0% - 20% weight of cement & replacement of cement has been done. The RHA effect …
Published in International Journal of Concrete Technology · Vol. 7, Issue 2, 2021 · pp. 23–29 Read article
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Regration Analysis of Compressive Strength of Recycled Aggregate Concrete with Ground Granulated Blast-Furnace Slag and Fly Ash
Abstract: In this research work presents the compressive strength of recycled aggregate concrete (RAC) with recycled coarse aggregate (RCA) that coming from single source and the results of an investigation on the influence of recycled coarse aggregate (RCA) on compressive strength of recycled concrete are accessible. Natural aggregates concrete cubes were cured in normal water for 28-days obtain virgin and RCA. The properties of natural coarse aggregate (NCA) and (RCA) and …
Published in International Journal of Concrete Technology · Vol. 8, Issue 1, 2022 · pp. 9–16 Read article
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Potential Use of Waste Marble Fine in Concrete
Abstract: In India waste is producing in large amount from cutting and dressing industries of stone. This waste creates the problem for surrounding area as well as human being. Keeping such as issues in mind an experimental work was conducted on concrete by using marble waste (MW). Marble waste (MW) 5%, 10%, 15%, 20% and 25% was added as filler. To examine the fresh properties of concrete slump test of workability …
Published in International Journal of Concrete Technology · Vol. 8, Issue 2, 2022 · pp. 31–38 Read article
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Modeling 28 Days’ Curing Compressive Strength of Concrete Partially Replaced with Palm Kernel Shell as Aggregate Influenced by Porosity
Abstract: Twenty-eight days of curing to determine compressive strength of concrete were carried out throughthe application of modeling and simulation. The development of concrete compressive strength wascarried out by integrating palm kernel shell (PKS) as partial replacement for aggregate. Studies weremonitored to determine its rates of strength development by partially replacing PKS at differentpercentage of 5%, 10%, 15%, 20%, and 25% to determine the optimum compressive strength withinthe applied percentage of …
Published in International Journal of Concrete Technology · Vol. 9, Issue 2, 2023 · pp. 26–40 Read article
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Evaluation of Soil Reinforcement Potential of Grass Variety
Abstract: Reinforcement potential of plant root is studied by many researches across the globe. This work aims to analyze the effect of grass root in the improvement of engineering properties of soil. Plant roots being a natural material help in enhancing the shear strength of soil. Field and laboratory studies were conducted on a grass variety (Co-4) and the soil reinforcement potential of the plant is studied. It is found that …
Published in International Journal of Geological and Geotechnical Engineering · Vol. 1, Issue 1, 2015 · pp. 14–18 Read article
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Spatial and Temporal Variation of Bioaerosols with Meteorology at Different Land Sites
Abstract: Air particulates associated with biological origins are termed as bioaerosols. These bioaerosols consist of different species of bacteria, fungi, pollen and spores, etc. and can be allergenic and infectious in nature. The study is an attempt to understand the seasonal variation in bioaerosols concentration at three different land use sites: site I (commercial site), site II (dumping site), Site III (vegetated site). Statistical correlation was applied to infer the relation …
Published in International Journal of Geological and Geotechnical Engineering · Vol. 2, Issue 1, 2016 · pp. 12–20 Read article
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Development of Attenuation Relationships for Underground Blasts: Different Equations
Abstract: Blasting operation becomes essential for excavation in weathered and hard rock strata for construction and mining activities. The Indian Standard and industrial practice of establishing the site specific attenuation relationship recommend Power form of relationship between the PPV the scaled distance with an exponent of 2/3 (IS) and 1/2 (industrial practice). In this paper, three different equation forms and five different exponents were explored for modelling the aforementioned relationship for …
Published in International Journal of Geological and Geotechnical Engineering · Vol. 3, Issue 1, 2017 · pp. 8–16 Read article
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Prediction and Assessment of Lateral Displacement of Rock Mass Along the Length of the Horseshoe Cavern – A Numerical Modelling Approach
Abstract: The stability of the underground structures is a key to successful underground mining. Caverns are large underground openings constructed in rock mass for a variety of purposes. The properties of intact rock mass are generally overshadowed by the properties of discontinuities, if the discontinuities are present. Mechanisms of deformation and failure of underground openings in jointed rock mass are determined by the characteristics of the geometrical distribution of discontinuities. This …
Published in International Journal of Geological and Geotechnical Engineering · Vol. 3, Issue 1, 2017 · pp. 17–28 Read article
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Effects of granulated waste glass and micro steel fiber on shear strength parameters of sand
Abstract: During the construction of the various structures, soil strength plays a vital role in structural performance. Hence, soil improvement techniques are needed to improve soil strength as well. This study aimed to improve shear strength of sandy soil using Granulated waste glass (GWG) and Micro steel fiber (MSF). In order to apply this idea, there have been taken two kinds of sandy soil such as fine sand (locally available in …
Published in International Journal of Geological and Geotechnical Engineering · Vol. 5, Issue 2, 2019 · pp. 35–42 Read article
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Concrete Properties Enhancement with use of Carbon Fibers
Abstract: Concrete standard grade of concrete with high strength with mechanical properties like flexural strength as well as split is a requirement / need for today’s fastest construction work. To improve the mechanical properties there is need for adding fibers in concrete. Distinct fibers available in worldwide out of which carbon fibers had showed very effective solution for enhancing high strength mechanical properties of concrete. In this paper we have designed …
Published in International Journal of Geological and Geotechnical Engineering · Vol. 7, Issue 2, 2021 · pp. 1–8 Read article
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Simplified Analytical and Numerical Analysis for Stability of Tunnel and Foundation Containing Sloping Ground
Abstract: Tunnel, foundation and superstructure effect on the stability of slope. Numerical and simplified analytical analyses evaluate behavior of slope under various conditions. However, factor of safety indicates failure criteria of slope. Present research develops some simplified analytical formulae for a specific model and numerical code (PLAXIS 3D) performs finite element analysis of this model. During numerical analysis considers Mohr-Coulomb material model and drained condition. Factor of safety assesses from variations …
Published in International Journal of Geological and Geotechnical Engineering · Vol. 7, Issue 2, 2021 · pp. 24–34 Read article