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974 articles for “conductivity”
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Experimental Investigation On Partial Replacement Of Fine Aggregate By Wood Ash On Concrete
Abstract: This paper intends to investigate the possibility of producing low costs enhanced performance concrete by wood ash. By taking the enormous amount of sand in river beds, it affects the environment badly and demand for fine aggregate is increase day by day. So by partially replacing Prosopis juliflora ash with fine aggregate in construction field, It can serve both the purposes of meeting the demands of construction industry and at …
Published in International Journal of Concrete Technology · Vol. 4, Issue 2, 2018 · pp. 10–16 Read article
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Investigation of strength of concrete by replacement of sand with copper slag and cement with sugarcane bagasse ash
Abstract: This investigational study conducted to observe the potential of Sugarcane Bagasse Ash as a cement replacing material which is similar to that of Portland Pozzolana Cement and Copper slag as a fine aggregate replacement material. Seven different concrete mixes with the Bagasse Ash replacement to the Portland Pozzolana cement and copper slag replacement are (5% + 40%, 10% + 15% , 10% + 25% , 10% + 35% , 10% …
Published in International Journal of Concrete Technology · Vol. 5, Issue 1, 2019 · pp. 25–38 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 Accelerated Curing and Normal Curing Regimes on UFGGBFS-Based Semi-Lightweight Concrete
Abstract: This paper deals with the performance of semi-lightweight concrete (sLWC), prepared by using calcite powder pellets as coarse aggregates which was improved by partial replacement of cement with UFGGBFS (ultrafine ground granulated blast-furnace slag). Cement could be replaced by UFGGBFS as 0%, 5%, 10%, 15%, 20%, 25%, 30%, 35%, 40%, 45%, 50%, 55%, 60%, 65%, and 70% to enhance the strength and durability properties of concrete. High-range water-reducing admixtures (HRWA) …
Published in International Journal of Concrete Technology · Vol. 5, Issue 1, 2019 · pp. 1–7 Read article
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Experimental Study of Mechanical Properties Geopolymer Concrete.
Abstract: This experimental study aimed to define the parameters for optimum mix design of geopolymer concrete made by partial replacement of cement. The geopolymer concrete is nothing but the formation of fly ash and alkali activators. Fly ash is the waste product from the thermal power station and may use as the pozzolanic material. But, only fly ash is may not the only replacement for the cement, for the more binding …
Published in International Journal of Concrete Technology · Vol. 5, Issue 2, 2019 · pp. 16–22 Read article
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Replacement of Natural Fine Aggregate by Copper Slag
Abstract: This paper presents the applications of replacement of natural fine aggregate using copper slag. The study is conducted by replacing the fine aggregate from 0 to 100% at the interval of 20% on M25 grade concrete and 1.8% superplasticizer by weight of cement. The compressive strength, split tensile strength and flexural test is studied and reported. It is observed that replacement of natural fine aggregate at 40% (CS40) gives higher …
Published in International Journal of Concrete Technology · Vol. 5, Issue 2, 2019 · pp. 23–28 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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Experimental Investigation of Concrete Properties for Strength and Durability with Partial Replacement of Mixture of Nano-Silica
Abstract: This study explores the effects of partial cement replacement with nano-silica on theproperties of concrete, focusing on both strength and durability aspects. Compressive strengthtests were conducted at two key ages, 7 days and 28 days, to evaluate the concrete's performanceunder various conditions. The nano-silica was introduced into the concrete mix at three differentpercentages: 0.3%, 0.6%, and 1% by weight of the cement content. Our experimental findingsindicated a remarkable enhancement in …
Published in International Journal of Concrete Technology · Vol. 9, Issue 2, 2023 · pp. 1–7 Read article
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Behaviour of Vertically Loaded Piled Raft
Abstract: In order to understand the load-settlement behaviour and load sharing of piled raft resting on sand soil, 1-g model tests were conducted.The parameter studied were the influence of pile spacing and number of piles. The testing program includes tests on models of unpiled raft and rafts on 4 and 9 piles. The model piles beneath the raft are non-displacement piles.The improvement in ultimate bearing capacity is represented by load improvement …
Published in International Journal of Geological and Geotechnical Engineering · Vol. 1, Issue 1, 2015 · pp. 1–8 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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Application of Suitable Admixtures (Lime and RHA) for Improvement of Pavement Subgrade
Abstract: Abstract The quality of a pavement depends on the strength of its sub-grade. The present investigation has been carried out with easily available materials like lime and rice husk ash mixed individually and in combinations with different proportions. The different percentages of lime with respect to weight of dry soil were 2%, 4%, 6%, 8% 10% and for rice husk ash (RHA) were 3%, 6%, 9% and 12%. In each …
Published in International Journal of Geological and Geotechnical Engineering · Vol. 1, Issue 2, 2015 · pp. 14–31 Read article
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Effect of Varying Shear Velocity on the Mechanical Behavior of Jointed Rock Subjected To Lower Normal Load
Abstract: : This study investigates the effect of shearing velocity on the mechanical behavior of rock joints, namely, the shear strength, residual strength, joint dilation, its surface roughness and the shearing stiffness under the application of lower normal load. The slower rate of shearing plays an important role in creep and the fatigue effect on jointed rock masses whereas, higher rate of shearing is experienced in the cases of dynamic loadings …
Published in International Journal of Geological and Geotechnical Engineering · Vol. 2, Issue 1, 2016 · pp. 1–11 Read article
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Under Water Blasting for Rock Dredging & Protection of Structures: A Case Study
Abstract: Rock dredging in ports involves under water blasting for the pretreatment of hard sea bed. A rock dredging project covering an area of about 257,058m2 involving 400,000 cu.m of hard Khondalite rock mass was taken up in a port in the east coast of Southern India, for deepening of Turning Circle and Inner Harbour Channel. Pre-blast survey was carried out to assess type and condition of various structures standing on …
Published in International Journal of Geological and Geotechnical Engineering · Vol. 2, Issue 1, 2016 · pp. 31–38 Read article
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Application of High Speed Videography and Digital Image Processing Software to Assess Performance of Blasts In Opencast Mines: A Case Study
Abstract: Rock mass can be fragmented by the process of blasting in which a known volume of the yield is obtained by using a calculated quantity of explosive. The explosive selected for blasting depends on factors like rock mass parameters, blasting economics and blast design. Assessment of the performance of a given blast is essential in the larger economics of the mining project. A study was conducted to know the blast …
Published in International Journal of Geological and Geotechnical Engineering · Vol. 3, Issue 2, 2017 · pp. 1–9 Read article
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A STYDY ON MECHANICAL PROPERTIES UNDER THE INFLUENCE OF FELDSPAR ACTIVATOR ON GEOPOLYMERIZATION OF REDMUD AND GGBS
Abstract: It is well known fact that the Ordinary Portland Cement (OPC) is most important construction material. Keeping in view the hazardous effects of Portland cement on environment, efforts are being put to reduce use of cement in concrete with its partial or full replacement by various waste materials such as Red mud (RM), Ground Granulated Blas Furnace Slag (GGBFS or GGBS), Flyash, Silica fume etc.. Geopolymer Concrete (GPC) is a …
Published in International Journal of Geological and Geotechnical Engineering · Vol. 5, Issue 1, 2019 · pp. 1–8 Read article
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Durability Studies on Red mud and GGBS based Geopolymer Concrete
Abstract: The aim of the study is to evaluate the performance of geopolymer concrete and conventional concrete. In the present work, two Industrial by-products such as Red Mud and ground granulated blast furnace slag (GGBS) of 25:75 proportion is used for geopolymerisation. Red mud is a by-product from Alumina industry. GGBS is a by-product from iron industry. To develop a bond between binder and aggregates to form a geopolymer concrete feldspar …
Published in International Journal of Geological and Geotechnical Engineering · Vol. 5, Issue 1, 2019 · pp. 9–17 Read article
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Analytical study of CFST Columns at different Temperatures under Monotonic loading using Abaqus Software (CC & LWC infill)
Abstract: This paper presents, Behaviour of Conventional & Lightweight Concrete-Filled Steel Tube under monotonic loading at different temperatures is investigated using finite element method (Abaqus version 6.13.0.). The parameters chosen for the study are the geometry of the specimen – circular section, different L/D ratios, different grades of conventional & lightweight concrete infill and different temperatures (30°C, 60°C, 90°C, and 120°C). The study includes an analytical investigation into a total of …
Published in International Journal of Geological and Geotechnical Engineering · Vol. 5, Issue 1, 2019 · pp. 43–52 Read article
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THE STRENGHT PARAMETERS OF SAW-DUST ASH ON THE GEOTECHNICAL PROPERTIES OF LATERITIC SOIL FOR ROAD CONSTRUCTION PURPOSES IN GHANA
Abstract: The strength parameters of saw dust ash on the geotechnical properties of lateritic soil for road construction purposes in Ghana have been investigated. The lateritic soil sample collected was subjected to the following test; Atterberg limits, compaction and California Bearing Ratio Test. The tests were conducted in accordance with BS: 1377 and AASHTO M145 standards. A varying percentage of the saw dust ash in order of 2%, 4%, 6%, 8% …
Published in International Journal of Geological and Geotechnical Engineering · Vol. 6, Issue 1, 2020 · pp. 1–9 Read article
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Free Swelling Behaviour of Bentonite-sand Mixtures in Presence of Pore Fluids of Different Dielectric Constants
Abstract: The free swelling behaviour of bentonite sand mixtures have been studied using different percentage of ethanol-water and methanol-water solutions. Free swell index tests were conducted at different proportion of ethanol and methanol with distilled water(0%, 20%, 40%, 60%, 80% and 100%). Free swell index (FSI), modified free swell index (MFSI) and free swell ratio (FSR) were determined from the results obtained from the tests. FSI, MFSI and FSR decrease with …
Published in International Journal of Geological and Geotechnical Engineering · Vol. 7, Issue 1, 2021 · pp. 26–38 Read article
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Performance of Bricks and Brick Masonry in Aggressive Chemical Environment
Abstract: Abstract In India, the use of burnt clay bricks in dwellings is common since the ancient Indus civilization. In buildings, bricks are used in brick masonry, reinforced brick work and in some cases as coarse aggregate in the construction of foundation base. The performance of brick masonry depends upon the quality of bricks, quality of masonry work and the prevalent environmental conditions which have to be faced by the structure. …
Published in International Journal of Structural Engineering and Analysis · Vol. 1, Issue 2, 2015 · pp. 1–12 Read article