Search
608 articles for “Laboratory”
-
Seismic Induced Landslide Vulnerability in the Chittagong City, Bangladesh
Abstract: Chittagong is the second largest city of Bangladesh and evidences of hundreds of earthquakes that jolted this city and its surrounding areas. In this paper, we show the cause of slope failure in Chittagong city with the response of earthquake (seismic) activity. We have collected four in-situ samples from each of the upper and lower layers, i.e., eight samples from each of the seven different locations (Motijharna, Tankir Pahar, Batali …
Published in Journal of Geotechnical Engineering · Vol. 2, Issue 1, 2015 · pp. 1–13 Read article
-
Determination of Bearing Strength Characteristics of Fine and Coarse Cohesive Soils from its Index Properties
Abstract: The variation in geology, cost and complexity in the preparation and testing for strength characteristics of soils from location to location has challenged geotechnical engineers to make optimum use of empirical formulas to predict bearing strength characteristics of soils. One major One major One major One major One major One major problem associated with bearing capacity of soil includes the different engineering properties associated with different geologic formations which have …
Published in Journal of Geotechnical Engineering · Vol. 7, Issue 2, 2020 · pp. 1–12 Read article
-
Comparative Study on Stabilization of Expansive Soil using Cement Kiln Dust and Ceramic Dust
Abstract: In India, expansive soils cover about 20% of total land area, these soils increase in volume (swell) during winter season and decrease in volume (shrink) during summer season. Due to this contradiction behaviour many civil engineering structures constructed on expansive soils get damaged severely, out of which pavement is the most because they are lightweight and extend over large areas. Stabilization of Expansive soil is of most importance, since to …
Published in Journal of Geotechnical Engineering · Vol. 1, Issue 3, 2014 · pp. 1–7 Read article
-
Slope Stability Problem in the Chittagong City, Bangladesh
Abstract: Chittagong, the major port city of Bangladesh is seriously and violently vulnerable for landslide from geological and geographical point of view for many specific reasons. Along with the steep slope, slope cutting, natural weathering and antecedent rainfall causes for landslide of the city during the rainy season caused by thunderclap of heavy storms. This paper presents a quantitative analysis of slope instability problem of the Chittagong city by technical and …
Published in Journal of Geotechnical Engineering · Vol. 1, Issue 3, 2014 · pp. 13–25 Read article
-
Experimental Investigation of Different Type of Soils with Addition of Geofibers
Abstract: Strength is important factor for stability of structure tо meet sрeсified engineering requirements оf sоil аnd to mаke it mоre stаble. For this purpose, certain engineering рrорerties are required tо be altered/changed. Based on the literature available, In the present study, аn exрerimentаl investigation is undertаken tо investigаte the effeсt оf addition of geofibers in different proportions (0.0-2.0% by weight) with two fiber lengths of 6 mm and 12 mm …
Published in Journal of Geotechnical Engineering · Vol. 8, Issue 2, 2021 · pp. 13–20 Read article
-
Evaluate Variations of Deflections of Fixed Headed Pile from Non-Linear Load - Deflection Curve under Lateral Loading
Abstract: Lateral stability is the vital issue when the pile stands in several soft clay either sand layers. In reality, structure and soil both are show non-linear behaviors. Proper evaluation of non-linear behavior has not so essay in theory. However, slight non-linear effects are included in pile deflection from load-deflection curve of pressuremeter test in laboratory. Pressuremeter modulus is influenced deflection of fixed headed piles. Predicting the variations of non-linear load …
Published in Journal of Geotechnical Engineering · Vol. 9, Issue 1, 2022 · pp. 45–52 Read article
-
A study to investigate the shear strength resistance of Ennore sand from conventional direct shear test.
Abstract: In this article analysis of shear strength parameters of Ennore Sand is given using the direct shear test. The shear strength parameters of cohesion and angle of shearing resistance are employed in the construction of geotechnical constructions to describe the soil's ability to sustain shear stress when subjected to a certain load. These might be measured using laboratory or field testing. When shearing a sample in a direct shear apparatus, …
Published in Journal of Geotechnical Engineering · Vol. 9, Issue 3, 2022 · pp. 19–26 Read article
-
Assessing the Poisson Ratio of Reinforced Earth under Static and Dynamic Stresses
Abstract: Poisson’s ratio is an essential property of the soil strength and it is a measure of the amount of lateral strain in the soil sample caused due to the longitudinal strain of the soil. An attempt has been made in the present work to detect the variation in the Poisson ratio for reinforced and asphalt stabilized soil when tested under static and dynamic compressive stresses. Soil embankment model was prepared …
Published in Journal of Geotechnical Engineering · Vol. 10, Issue 1, 2023 · pp. 50–56 Read article
-
Investigation of Rock Dust Suitability as Improvement Material of Subgrade and Sub-base Laterite Material of Elerinjare, Kwara State, Nigeria, in Pavement Construction
Abstract: The current study involves the improvement of laterite soil by addition of granite dust. The laterite and dust used for the study were collected at Elerinjare town, Ilorin. The analyses were done in a laboratory. The tests are compaction test, specific gravity, California bearing ratio (CBR) (soaked and unsoaked), Atterberg's limit, Sieve analysis, and bulk density. In this investigation, an attempt was made to stabilize lateritic soil using quarry dust …
Published in Journal of Geotechnical Engineering · Vol. 10, Issue 2, 2023 · pp. 41–57 Read article
-
Geotechnical and Geophysical investigations for a foundation underpinning solution in a residential building with differential settlements, in Asti Province (central Piedmont), NW Italy
Abstract: Foundation differential settlements are a recurrent topic for antique and no so antique buildings, for this particular case, an integrated approach of geotechnical and geophysical investigation was developed to provide information and support to the engineering design for the restoration of a building.Given the presence of widespread and pervasive wall fractures, compromising the static nature of the building, investigating the nature of the subsoil in depth was a need, in …
Published in Journal of Geotechnical Engineering · Vol. 10, Issue 3, 2023 · pp. 1–12 Read article
-
Wastewater Analysis of Gadoon-Amazai Industrial Zone
Abstract: This study was designed to evaluate the polluting strength of the industrial effluent of Gadoon-Amazi Industrial Zone (GAIZ). The main purpose of the study was to analyze the wastewater characteristics of the major industries in the subject area. Various representative samples were collected at regular interval for a period of 6–8 months. These samples were then tested in the laboratory using available standard procedures. The major industries pointed out in …
Published in Journal of Industrial Safety Engineering · Vol. 2, Issue 1, 2015 · pp. 43–47 Read article
-
Universal Microcontroller Trainer Board Design for Speed Controlling of BLDC Motor and Text Controlling of Dot-Matrix Display
Abstract: Reduce Instruction Set Computing (RISC) related micro-controlling is taking over modern life little by little. Practicing these phenomena becoming necessary in engineering sectors. In this research, a segmented laboratory-kit has been developed to involve students in controlling Brushless Direct Current (BLDC) Motor and Light Emitting Diode (LED) Dot Matrix Display. This lab kit introduces several features for those two modules. The Rotation Per Minute (RPM) measurement using Infrared (IR) sensor, …
Published in Journal of Microcontroller Engineering and Applications · Vol. 8, Issue 3, 2021 · pp. 6–21 Read article
-
Some Studies on Content of Ultraviolet Rays in Conventional Light Sources vs LED
Abstract: The abstract Light is a type of electromagnetic radiation that primarily emits visible, ultraviolet (UV), and infrared (IR) waves. Which is known as optical radiations. The Ultra Violet radiations in this spectrum, which are generically classed as UV-A, UV-B, and UV-C. It's true that UV[1]-shorter C's wavelength has more harmful effects than UV-A while UV-impact B's is more moderate. Whether artificial or natural, light is used to create visual perception. …
Published in Journal of Microwave Engineering and Technologies · Vol. 10, Issue 1, 2023 · pp. 14–19 Read article
-
Recovery of Tungsten and Copper from Waste Tungsten Copper Borings
Abstract: During the last many years, the unused tungsten and copper alloy from the discarded electric and electronic equipment and industrial scraps are gathering attention as a section of waste. Because of tungsten's many diverse uses, numerous types of scrap were available for recycling by a wide variety of processes. In the present study, tungsten and copper was recovered by leaching process in ammonium hydroxide solution followed by electro winning process. …
Published in Journal of Materials & Metallurgical Engineering · Vol. 7, Issue 1, 2017 · pp. 1–8 Read article
-
Effect of Isothermal Ageing on Microstructure and Mechanical Behavior of 0.5Cr-0.5Mo-0.2V Low Alloy Steel
Abstract: Cr-Mo-V based low alloy steels are widely used in thermal power plants because of their ability to withstand elevated temperature and high pressure under continuous operation. With ferrite-pearlite and/or ferrite-bainite microstructures, these steels find their applications in boiler tubes, pressure vessels and steam turbines. Being cost effective is one of the important factors, which draws attention of many industrialists towards low alloyed steels over highly alloyed steels with austenitic matrix. …
Published in Journal of Materials & Metallurgical Engineering · Vol. 5, Issue 3, 2015 · pp. 7–14 Read article
-
Al-MMC Foam: Synthesis and Characterisation
Abstract: Aluminium alloy composite foams are produced in the laboratory using TiH2-CaCO3 dual foaming agents. The density of the developed material varied along various cross sections. There exists a more pronounced variation in density along the direction of foaming. Compressive and tensile tests are performed on Aluminium Metal Matrix composite (Al-MMC) specimens of different relative density. The compressive stress-strain response of the material establishes their engineering utility in terms of their …
Published in Journal of Materials & Metallurgical Engineering · Vol. 1, Issue 1-3, 2011 · pp. 18–27 Read article
-
Fabrication of AA5182-Semis for Precise Components
Abstract: Al4.5MgMn alloy is known to show an excellent physical and mechanical properties as well as manufacturing and fabrication ease as semis, suitable for making precise components like hull of the light weight vehicles and seamless tubes. Present work has tried to describe the development of microstructure and texture of an industrial tandem hot rolled Al4.5MgMn alloy sheet after laboratory cold rolling and annealing. Crystallographic orientation dependent strengthening rate has been …
Published in Journal of Materials & Metallurgical Engineering · Vol. 11, Issue 3, 2021 · pp. 21–32 Read article
-
Portable small nuclear reactor for supplying Power to remote places
Abstract: Los Alamos National Laboratory, USA has developed one very light and small sized modular portable nuclear power plant. It can be transported to remote places either by truck or cargo plane or boat and installed there within a couple of days. It can provide readymade plug-and-go power supply at war front, disaster site, remote islands etc. with a very low sound signature. Due to use of heat pipes and other …
Published in Journal of Nuclear Engineering & Technology · Vol. 11, Issue 1-2, 2021 · pp. 21–29 Read article
-
Characterization studies on surface activation of phosphor bronze wire mesh via different chemical means for water distillation applications
Abstract: Surface activation of phosphor bronze structured packing modules is an important step in the manufacturing of high efficiency water distillation columns as it ensures excellent mass transfer behaviour and overall process intensification. These packed columns are used in the nuclear industry for heavy water production and purification. Activation is generally achieved through a treatment involving aqueous NaOH solution with bubbling of oxygen gas through it. This leads to the development …
Published in Journal of Nuclear Engineering & Technology · Vol. 12, Issue 2, 2022 · pp. 10–23 Read article
-
Thorium the Fuel of the Future to Revitalize Nuclear Power Generation
Abstract: After disasters like Kyshtym, Windscale, Fukushima, Chernobyl etc., nuclear energy carried a dreaded stigma. The cost of nuclear power generation in the conventional way is on the rise, and so there is a resurgence in nuclear technology using thorium as fuel. There is a great pressure from international community to reduce carbon emission. So many countries are looking for a path to generate energy that is distinctly different but pays …
Published in Journal of Nuclear Engineering & Technology · Vol. 12, Issue 3, 2022 · pp. 1–26 Read article