This study investigated the effects of tile waste on the engineering properties of expansive soil. Expansive soil samples were mixed with 0-30% tile waste by weight. Index property tests found that liquid limit, plastic limit, and plasticity index decreased with increased tile waste content. Compaction tests showed that maximum dry density increased up to 20% tile waste while optimum moisture content decreased. California Bearing Ratio tests indicated soaked CBR increased by 105% with 20% tile waste. Swelling pressure tests showed a 48% reduction in swelling pressure at 20% tile waste. The study concluded that tile waste up to 20% can effectively improve the strength properties of expansive soil for use in flexible pavement subgrades.
Geotechnical Engineering-II [Lec #6: Stress Distribution in Soil]Muhammad Irfan
Class notes of Geotechnical Engineering course I used to teach at UET Lahore. Feel free to download the slide show.
Anyone looking to modify these files and use them for their own teaching purposes can contact me directly to get hold of editable version.
Bearing capacity of shallow foundations by abhishek sharma ABHISHEK SHARMA
elements you should know about bearing capacity of shallow foundations are included in it. various indian standards are also used. Bearing capacity theories by various researchers are also included. numericals from GATE CE and ESE CE are also included.
Dynamics of structures 5th edition chopra solutions manualSchneiderxds
Download at: https://goo.gl/bVUnH2
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Geotechnical Engineering-II [Lec #6: Stress Distribution in Soil]Muhammad Irfan
Class notes of Geotechnical Engineering course I used to teach at UET Lahore. Feel free to download the slide show.
Anyone looking to modify these files and use them for their own teaching purposes can contact me directly to get hold of editable version.
Bearing capacity of shallow foundations by abhishek sharma ABHISHEK SHARMA
elements you should know about bearing capacity of shallow foundations are included in it. various indian standards are also used. Bearing capacity theories by various researchers are also included. numericals from GATE CE and ESE CE are also included.
Dynamics of structures 5th edition chopra solutions manualSchneiderxds
Download at: https://goo.gl/bVUnH2
People also search:
dynamics of structures (5th edition) pdf
dynamics of structures chopra 5th edition pdf
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dynamics of structures: theory and applications to earthquake engineering 5th edition
This presentation contains a general introduction of void ratio and its correlation with other soil properties (index and engineering properties).
Best Regards:
Engr. Muhammad Ali Rehman
Class notes of Geotechnical Engineering course I used to teach at UET Lahore. Feel free to download the slide show.
Anyone looking to modify these files and use them for their own teaching purposes can contact me directly to get hold of editable version.
This presentation contains a general introduction of void ratio and its correlation with other soil properties (index and engineering properties).
Best Regards:
Engr. Muhammad Ali Rehman
Class notes of Geotechnical Engineering course I used to teach at UET Lahore. Feel free to download the slide show.
Anyone looking to modify these files and use them for their own teaching purposes can contact me directly to get hold of editable version.
Study on Geotechnical Properties of Stabilized Expansive SoilQuarry Dust Mixesiosrjce
IOSR Journal of Mechanical and Civil Engineering (IOSR-JMCE) is a double blind peer reviewed International Journal that provides rapid publication (within a month) of articles in all areas of mechanical and civil engineering and its applications. The journal welcomes publications of high quality papers on theoretical developments and practical applications in mechanical and civil engineering. Original research papers, state-of-the-art reviews, and high quality technical notes are invited for publications.
Utilisation of Waste Materials in the Construction Of RoadsIJERD Editor
Expansive soils are so widely spread that it becomes impossible to avoid them for highway construction to keep the network structure for mobility and accessibility. These soils are prevalent as large tracts in many parts of the world. Many highway agencies, private organizations and researchers are doing extensive studies on waste materials and research projects concerning the feasibility and environmental suitability. It is necessary to utilize the waste affectively with technical development in each field. Cyclic plate load tests were carried out on the tracks with optimum percentage of reinforcement materials like waste plastics and waste tyre rubber in gravel/flyash subbase laid on expansive subgrade. Test results show that maximum load carrying capacity associated with less value of rebound deflection is obtained for gravel/flyash reinforced subbase compared to unreinforced subbase.
Stabilization of Natural Soil with Sand and CementIJSRD
In western Madhya Pradesh generally black cotton soil is found, Black cotton soil is exceptionally feeble and does not have enough steadiness for a development work. On pavement, subgrade layer is the base most layer basic the base form or surface form. To prepare the subgrade soil stable, by enhancing its building properties is extremely rudimentary. In the present study, an adjustment of subgrade soil by using sand and cement i.e. varying the rate of sand and consistent rate of cement by weight of soil is applied to improve the strength of subgrade soil. The grounds for this field is to determine the ideal measurement of the stabilizer, which heightens the effectiveness of soil. Which will be suited for pavement construction. To assess the strength of soil, different test has been performed on the soil. It has been noticed that sand and cement increases the effectiveness of the land.
A Study on Stabilization of Black Cotton Soil by Use of Fly Ash, Ferric Chlor...inventy
Research Inventy : International Journal of Engineering and Science is published by the group of young academic and industrial researchers with 12 Issues per year. It is an online as well as print version open access journal that provides rapid publication (monthly) of articles in all areas of the subject such as: civil, mechanical, chemical, electronic and computer engineering as well as production and information technology. The Journal welcomes the submission of manuscripts that meet the general criteria of significance and scientific excellence. Papers will be published by rapid process within 20 days after acceptance and peer review process takes only 7 days. All articles published in Research Inventy will be peer-reviewed.
A Study on Utilization of Admixtures for the Stabilization of Swelling Soils ...ijtsrd
Rapid urbanization along with the development of large scale industries has created numerous environmental problems. With the reduction of buildable ground, the construction sector has to move to areas with claysoil for expansion, which require soil stabilization. Any construction work over subgrade clay soil is expensive since treatment with various admixtures is required. Civil engineers, structural engineers, architects, and builders have tried many ways to avoid the damaging effects of expansive soils. This study shows that admixtures help reduce the costs of construction on expansive soil as well as the disposal of industrial wastes. Technological advances have made it possible to introduce new technologies in civil engineering for instance, geosynthetics are embedded in the soil to reduce the height of replacement soil. The purpose of this study is to critically evaluate the methodologies for improving the geotechnical properties of clay soil. Three different types of soils were collected from Bhopal M.P. . Based on their physical chemical parameters, these were classified as Low Compressibility of soil CL , Medium Compresibility of soil CI , and High Compressibility of soil CH according to IS standards, respectively. The different admixtures QD, MP, and FA, which are abundantly available in quarries and thermal industries, were collected and their physical and engineering properties were determined. Three soil samples were mixed with the admixtures at different ratios and their maximum dry density and optimum moisture content were determined. The trials were conducted with the addition of admixtures ranging from 10 to 40 by weight to Soil 1, Soil2, and Soil 3, and the dry density was obtained. The experimental results showed that the dry strength of Soil 1 QD 70 30 is higher than that of Soil 1 with other admixtures of different ratios. The experimental results showed that the dry strength of Soil 2 QD 70 30 is higher than that of Soil 2 with other admixtures of different ratios. The experimental results showed that the dry strength of Soil 3 QD 80 20 is higher than that of Soil 3 with other admixtures of different ratios. Regarding the Optimum Moisture Content OMC , the variations in OMC for Soil 1, Soil 2, and Soil 3 are 21 , 24 , and 26 , respectively. Soil 3 has greater OMC to achieve the corresponding Maximum dry density MDD . Water was adsorbed on clay minerals based on the percentage of clay content. Since Soil 3 has higher clay content, the OMC was higher to attain the MDD. From the test results, the best soil and admixture with the best ratio was identified. The best admixture QD was mixed with soil samples, but the proportion was reduced. Then, experiments were carried out by introducing single and double layer geogrid. The swell behaviour of soil, the time settlement, swell pressure, load settlement, and California bearing ratio CBR of the soil with QD at the best reduced ratio were analyzed. The swelling values controlled by th
An Experimental Study of Soil Stabilization with Cement and Polymerijtsrd
The aim of the study was to determine the value of Unconfined compressive strength and CBR values of Soil after stabilizing it with Cement and Polymer. Soil stabilization has been widely used as an alternative to substitute the lack of suitable material on site. The utilization of nontraditional compound stabilizers in soil improvement is developing every day. In this investigation a lab try was led to assess the impacts of waterborne polymer on unconfined pressure quality on sandy soil and CBR Test on clayey soil .The lab tests were performed including grain size of sandy soil, unit weight, and unconfined compressive quality test. The sand and different measures of polymer 2 , 3 , and 4 and concrete 20 , 30 , and 40 were blended in with every one of them into mixture utilizing hand blending in research center conditions. The examples were exposed to unconfined pressure tests to decide their quality following 7 days of restoring. The consequences of the tests showed that the waterborne polymer fundamentally improved the unconfined pressure quality of sandy soils which have weakness of liquefaction. Polymer altered the building properties of soil through physical holding. The amount of polymer required to modify the engineering properties was directly related to specific surface and soil particle coating thickness. Polymer amended soils displayed a reduced performance compared to cement amended soils. Sankalp Jain | Prabhat Kumar Tiwari | Abhay Kumar Jha "An Experimental Study of Soil Stabilization with Cement and Polymer" Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-5 | Issue-6 , October 2021, URL: https://www.ijtsrd.com/papers/ijtsrd47711.pdf Paper URL : https://www.ijtsrd.com/engineering/civil-engineering/47711/an-experimental-study-of-soil-stabilization-with-cement-and-polymer/sankalp-jain
International Journal of Computational Engineering Research (IJCER) ijceronline
International Journal of Computational Engineering Research(IJCER) is an intentional online Journal in English monthly publishing journal. This Journal publish original research work that contributes significantly to further the scientific knowledge in engineering and Technology
A Novel Method for Prevention of Bandwidth Distributed Denial of Service AttacksIJERD Editor
Distributed Denial of Service (DDoS) Attacks became a massive threat to the Internet. Traditional
Architecture of internet is vulnerable to the attacks like DDoS. Attacker primarily acquire his army of Zombies,
then that army will be instructed by the Attacker that when to start an attack and on whom the attack should be
done. In this paper, different techniques which are used to perform DDoS Attacks, Tools that were used to
perform Attacks and Countermeasures in order to detect the attackers and eliminate the Bandwidth Distributed
Denial of Service attacks (B-DDoS) are reviewed. DDoS Attacks were done by using various Flooding
techniques which are used in DDoS attack.
The main purpose of this paper is to design an architecture which can reduce the Bandwidth
Distributed Denial of service Attack and make the victim site or server available for the normal users by
eliminating the zombie machines. Our Primary focus of this paper is to dispute how normal machines are
turning into zombies (Bots), how attack is been initiated, DDoS attack procedure and how an organization can
save their server from being a DDoS victim. In order to present this we implemented a simulated environment
with Cisco switches, Routers, Firewall, some virtual machines and some Attack tools to display a real DDoS
attack. By using Time scheduling, Resource Limiting, System log, Access Control List and some Modular
policy Framework we stopped the attack and identified the Attacker (Bot) machines
Hearing loss is one of the most common human impairments. It is estimated that by year 2015 more
than 700 million people will suffer mild deafness. Most can be helped by hearing aid devices depending on the
severity of their hearing loss. This paper describes the implementation and characterization details of a dual
channel transmitter front end (TFE) for digital hearing aid (DHA) applications that use novel micro
electromechanical- systems (MEMS) audio transducers and ultra-low power-scalable analog-to-digital
converters (ADCs), which enable a very-low form factor, energy-efficient implementation for next-generation
DHA. The contribution of the design is the implementation of the dual channel MEMS microphones and powerscalable
ADC system.
Influence of tensile behaviour of slab on the structural Behaviour of shear c...IJERD Editor
-A composite beam is composed of a steel beam and a slab connected by means of shear connectors
like studs installed on the top flange of the steel beam to form a structure behaving monolithically. This study
analyzes the effects of the tensile behavior of the slab on the structural behavior of the shear connection like slip
stiffness and maximum shear force in composite beams subjected to hogging moment. The results show that the
shear studs located in the crack-concentration zones due to large hogging moments sustain significantly smaller
shear force and slip stiffness than the other zones. Moreover, the reduction of the slip stiffness in the shear
connection appears also to be closely related to the change in the tensile strain of rebar according to the increase
of the load. Further experimental and analytical studies shall be conducted considering variables such as the
reinforcement ratio and the arrangement of shear connectors to achieve efficient design of the shear connection
in composite beams subjected to hogging moment.
Gold prospecting using Remote Sensing ‘A case study of Sudan’IJERD Editor
Gold has been extracted from northeast Africa for more than 5000 years, and this may be the first
place where the metal was extracted. The Arabian-Nubian Shield (ANS) is an exposure of Precambrian
crystalline rocks on the flanks of the Red Sea. The crystalline rocks are mostly Neoproterozoic in age. ANS
includes the nations of Israel, Jordan. Egypt, Saudi Arabia, Sudan, Eritrea, Ethiopia, Yemen, and Somalia.
Arabian Nubian Shield Consists of juvenile continental crest that formed between 900 550 Ma, when intra
oceanic arc welded together along ophiolite decorated arc. Primary Au mineralization probably developed in
association with the growth of intra oceanic arc and evolution of back arc. Multiple episodes of deformation
have obscured the primary metallogenic setting, but at least some of the deposits preserve evidence that they
originate as sea floor massive sulphide deposits.
The Red Sea Hills Region is a vast span of rugged, harsh and inhospitable sector of the Earth with
inimical moon-like terrain, nevertheless since ancient times it is famed to be an abode of gold and was a major
source of wealth for the Pharaohs of ancient Egypt. The Pharaohs old workings have been periodically
rediscovered through time. Recent endeavours by the Geological Research Authority of Sudan led to the
discovery of a score of occurrences with gold and massive sulphide mineralizations. In the nineties of the
previous century the Geological Research Authority of Sudan (GRAS) in cooperation with BRGM utilized
satellite data of Landsat TM using spectral ratio technique to map possible mineralized zones in the Red Sea
Hills of Sudan. The outcome of the study mapped a gossan type gold mineralization. Band ratio technique was
applied to Arbaat area and a signature of alteration zone was detected. The alteration zones are commonly
associated with mineralization. The alteration zones are commonly associated with mineralization. A filed check
confirmed the existence of stock work of gold bearing quartz in the alteration zone. Another type of gold
mineralization that was discovered using remote sensing is the gold associated with metachert in the Atmur
Desert.
Reducing Corrosion Rate by Welding DesignIJERD Editor
The paper addresses the importance of welding design to prevent corrosion at steel. Welding is
used to join pipe, profiles at bridges, spindle, and a lot more part of engineering construction. The
problems happened associated with welding are common issues in these fields, especially corrosion.
Corrosion can be reduced with many methods, they are painting, controlling humidity, and also good
welding design. In the research, it can be found that reducing residual stress on the welding can be
solved in corrosion rate reduction problem.
Preheating on 500oC and 600oC give better condition to reduce corosion rate than condition after
preheating 400oC. For all welding groove type, material with 500oC and 600oC preheating after 14 days
corrosion test is 0,5%-0,69% lost. Material with 400oC preheating after 14 days corrosion test is 0,57%-0,76%
lost.
Welding groove also influence corrosion rate. X and V type welding groove give better condition to reduce
corrosion rate than use 1/2V and 1/2 X welding groove. After 14 days corrosion test, the samples with
X welding groove type is 0,5%-0,57% lost. The samples with V welding groove after 14 days corrosion test is
0,51%-0,59% lost. The samples with 1/2V and 1/2X welding groove after 14 days corrosion test is 0,58%-
0,71% lost.
Router 1X3 – RTL Design and VerificationIJERD Editor
Routing is the process of moving a packet of data from source to destination and enables messages
to pass from one computer to another and eventually reach the target machine. A router is a networking device
that forwards data packets between computer networks. It is connected to two or more data lines from different
networks (as opposed to a network switch, which connects data lines from one single network). This paper,
mainly emphasizes upon the study of router device, it‟s top level architecture, and how various sub-modules of
router i.e. Register, FIFO, FSM and Synchronizer are synthesized, and simulated and finally connected to its top
module.
Active Power Exchange in Distributed Power-Flow Controller (DPFC) At Third Ha...IJERD Editor
This paper presents a component within the flexible ac-transmission system (FACTS) family, called
distributed power-flow controller (DPFC). The DPFC is derived from the unified power-flow controller (UPFC)
with an eliminated common dc link. The DPFC has the same control capabilities as the UPFC, which comprise
the adjustment of the line impedance, the transmission angle, and the bus voltage. The active power exchange
between the shunt and series converters, which is through the common dc link in the UPFC, is now through the
transmission lines at the third-harmonic frequency. DPFC multiple small-size single-phase converters which
reduces the cost of equipment, no voltage isolation between phases, increases redundancy and there by
reliability increases. The principle and analysis of the DPFC are presented in this paper and the corresponding
simulation results that are carried out on a scaled prototype are also shown.
Mitigation of Voltage Sag/Swell with Fuzzy Control Reduced Rating DVRIJERD Editor
Power quality has been an issue that is becoming increasingly pivotal in industrial electricity
consumers point of view in recent times. Modern industries employ Sensitive power electronic equipments,
control devices and non-linear loads as part of automated processes to increase energy efficiency and
productivity. Voltage disturbances are the most common power quality problem due to this the use of a large
numbers of sophisticated and sensitive electronic equipment in industrial systems is increased. This paper
discusses the design and simulation of dynamic voltage restorer for improvement of power quality and
reduce the harmonics distortion of sensitive loads. Power quality problem is occurring at non-standard
voltage, current and frequency. Electronic devices are very sensitive loads. In power system voltage sag,
swell, flicker and harmonics are some of the problem to the sensitive load. The compensation capability
of a DVR depends primarily on the maximum voltage injection ability and the amount of stored
energy available within the restorer. This device is connected in series with the distribution feeder at
medium voltage. A fuzzy logic control is used to produce the gate pulses for control circuit of DVR and the
circuit is simulated by using MATLAB/SIMULINK software.
Study on the Fused Deposition Modelling In Additive ManufacturingIJERD Editor
Additive manufacturing process, also popularly known as 3-D printing, is a process where a product
is created in a succession of layers. It is based on a novel materials incremental manufacturing philosophy.
Unlike conventional manufacturing processes where material is removed from a given work price to derive the
final shape of a product, 3-D printing develops the product from scratch thus obviating the necessity to cut away
materials. This prevents wastage of raw materials. Commonly used raw materials for the process are ABS
plastic, PLA and nylon. Recently the use of gold, bronze and wood has also been implemented. The complexity
factor of this process is 0% as in any object of any shape and size can be manufactured.
Spyware triggering system by particular string valueIJERD Editor
This computer programme can be used for good and bad purpose in hacking or in any general
purpose. We can say it is next step for hacking techniques such as keylogger and spyware. Once in this system if
user or hacker store particular string as a input after that software continually compare typing activity of user
with that stored string and if it is match then launch spyware programme.
A Blind Steganalysis on JPEG Gray Level Image Based on Statistical Features a...IJERD Editor
This paper presents a blind steganalysis technique to effectively attack the JPEG steganographic
schemes i.e. Jsteg, F5, Outguess and DWT Based. The proposed method exploits the correlations between
block-DCTcoefficients from intra-block and inter-block relation and the statistical moments of characteristic
functions of the test image is selected as features. The features are extracted from the BDCT JPEG 2-array.
Support Vector Machine with cross-validation is implemented for the classification.The proposed scheme gives
improved outcome in attacking.
Secure Image Transmission for Cloud Storage System Using Hybrid SchemeIJERD Editor
- Data over the cloud is transferred or transmitted between servers and users. Privacy of that
data is very important as it belongs to personal information. If data get hacked by the hacker, can be
used to defame a person’s social data. Sometimes delay are held during data transmission. i.e. Mobile
communication, bandwidth is low. Hence compression algorithms are proposed for fast and efficient
transmission, encryption is used for security purposes and blurring is used by providing additional
layers of security. These algorithms are hybridized for having a robust and efficient security and
transmission over cloud storage system.
Application of Buckley-Leverett Equation in Modeling the Radius of Invasion i...IJERD Editor
A thorough review of existing literature indicates that the Buckley-Leverett equation only analyzes
waterflood practices directly without any adjustments on real reservoir scenarios. By doing so, quite a number
of errors are introduced into these analyses. Also, for most waterflood scenarios, a radial investigation is more
appropriate than a simplified linear system. This study investigates the adoption of the Buckley-Leverett
equation to estimate the radius invasion of the displacing fluid during waterflooding. The model is also adopted
for a Microbial flood and a comparative analysis is conducted for both waterflooding and microbial flooding.
Results shown from the analysis doesn’t only records a success in determining the radial distance of the leading
edge of water during the flooding process, but also gives a clearer understanding of the applicability of
microbes to enhance oil production through in-situ production of bio-products like bio surfactans, biogenic
gases, bio acids etc.
Gesture Gaming on the World Wide Web Using an Ordinary Web CameraIJERD Editor
- Gesture gaming is a method by which users having a laptop/pc/x-box play games using natural or
bodily gestures. This paper presents a way of playing free flash games on the internet using an ordinary webcam
with the help of open source technologies. Emphasis in human activity recognition is given on the pose
estimation and the consistency in the pose of the player. These are estimated with the help of an ordinary web
camera having different resolutions from VGA to 20mps. Our work involved giving a 10 second documentary to
the user on how to play a particular game using gestures and what are the various kinds of gestures that can be
performed in front of the system. The initial inputs of the RGB values for the gesture component is obtained by
instructing the user to place his component in a red box in about 10 seconds after the short documentary before
the game is finished. Later the system opens the concerned game on the internet on popular flash game sites like
miniclip, games arcade, GameStop etc and loads the game clicking at various places and brings the state to a
place where the user is to perform only gestures to start playing the game. At any point of time the user can call
off the game by hitting the esc key and the program will release all of the controls and return to the desktop. It
was noted that the results obtained using an ordinary webcam matched that of the Kinect and the users could
relive the gaming experience of the free flash games on the net. Therefore effective in game advertising could
also be achieved thus resulting in a disruptive growth to the advertising firms.
Hardware Analysis of Resonant Frequency Converter Using Isolated Circuits And...IJERD Editor
-LLC resonant frequency converter is basically a combo of series as well as parallel resonant ckt. For
LCC resonant converter it is associated with a disadvantage that, though it has two resonant frequencies, the
lower resonant frequency is in ZCS region[5]. For this application, we are not able to design the converter
working at this resonant frequency. LLC resonant converter existed for a very long time but because of
unknown characteristic of this converter it was used as a series resonant converter with basically a passive
(resistive) load. . Here, it was designed to operate in switching frequency higher than resonant frequency of the
series resonant tank of Lr and Cr converter acts very similar to Series Resonant Converter. The benefit of LLC
resonant converter is narrow switching frequency range with light load[6] . Basically, the control ckt plays a
very imp. role and hence 555 Timer used here provides a perfect square wave as the control ckt provides no
slew rate which makes the square wave really strong and impenetrable. The dead band circuit provides the
exclusive dead band in micro seconds so as to avoid the simultaneous firing of two pairs of IGBT’s where one
pair switches off and the other on for a slightest period of time. Hence, the isolator ckt here is associated with
each and every ckt used because it acts as a driver and an isolation to each of the IGBT is provided with one
exclusive transformer supply[3]. The IGBT’s are fired using the appropriate signal using the previous boards
and hence at last a high frequency rectifier ckt with a filtering capacitor is used to get an exact dc
waveform .The basic goal of this particular analysis is to observe the wave forms and characteristics of
converters with differently positioned passive elements in the form of tank circuits.
Simulated Analysis of Resonant Frequency Converter Using Different Tank Circu...IJERD Editor
LLC resonant frequency converter is basically a combo of series as well as parallel resonant ckt. For
LCC resonant converter it is associated with a disadvantage that, though it has two resonant frequencies, the
lower resonant frequency is in ZCS region [5]. For this application, we are not able to design the converter
working at this resonant frequency. LLC resonant converter existed for a very long time but because of
unknown characteristic of this converter it was used as a series resonant converter with basically a passive
(resistive) load. . Here, it was designed to operate in switching frequency higher than resonant frequency of the
series resonant tank of Lr and Cr converter acts very similar to Series Resonant Converter. The benefit of LLC
resonant converter is narrow switching frequency range with light load[6] . Basically, the control ckt plays a
very imp. role and hence 555 Timer used here provides a perfect square wave as the control ckt provides no
slew rate which makes the square wave really strong and impenetrable. The dead band circuit provides the
exclusive dead band in micro seconds so as to avoid the simultaneous firing of two pairs of IGBT’s where one
pair switches off and the other on for a slightest period of time. Hence, the isolator ckt here is associated with
each and every ckt used because it acts as a driver and an isolation to each of the IGBT is provided with one
exclusive transformer supply[3]. The IGBT’s are fired using the appropriate signal using the previous boards
and hence at last a high frequency rectifier ckt with a filtering capacitor is used to get an exact dc
waveform .The basic goal of this particular analysis is to observe the wave forms and characteristics of
converters with differently positioned passive elements in the form of tank circuits. The supported simulation
is done through PSIM 6.0 software tool
Amateurs Radio operator, also known as HAM communicates with other HAMs through Radio
waves. Wireless communication in which Moon is used as natural satellite is called Moon-bounce or EME
(Earth -Moon-Earth) technique. Long distance communication (DXing) using Very High Frequency (VHF)
operated amateur HAM radio was difficult. Even with the modest setup having good transceiver, power
amplifier and high gain antenna with high directivity, VHF DXing is possible. Generally 2X11 YAGI antenna
along with rotor to set horizontal and vertical angle is used. Moon tracking software gives exact location,
visibility of Moon at both the stations and other vital data to acquire real time position of moon.
“MS-Extractor: An Innovative Approach to Extract Microsatellites on „Y‟ Chrom...IJERD Editor
Simple Sequence Repeats (SSR), also known as Microsatellites, have been extensively used as
molecular markers due to their abundance and high degree of polymorphism. The nucleotide sequences of
polymorphic forms of the same gene should be 99.9% identical. So, Microsatellites extraction from the Gene is
crucial. However, Microsatellites repeat count is compared, if they differ largely, he has some disorder. The Y
chromosome likely contains 50 to 60 genes that provide instructions for making proteins. Because only males
have the Y chromosome, the genes on this chromosome tend to be involved in male sex determination and
development. Several Microsatellite Extractors exist and they fail to extract microsatellites on large data sets of
giga bytes and tera bytes in size. The proposed tool “MS-Extractor: An Innovative Approach to extract
Microsatellites on „Y‟ Chromosome” can extract both Perfect as well as Imperfect Microsatellites from large
data sets of human genome „Y‟. The proposed system uses string matching with sliding window approach to
locate Microsatellites and extracts them.
Importance of Measurements in Smart GridIJERD Editor
- The need to get reliable supply, independence from fossil fuels, and capability to provide clean
energy at a fixed and lower cost, the existing power grid structure is transforming into Smart Grid. The
development of a smart energy distribution grid is a current goal of many nations. A Smart Grid should have
new capabilities such as self-healing, high reliability, energy management, and real-time pricing. This new era
of smart future grid will lead to major changes in existing technologies at generation, transmission and
distribution levels. The incorporation of renewable energy resources and distribution generators in the existing
grid will increase the complexity, optimization problems and instability of the system. This will lead to a
paradigm shift in the instrumentation and control requirements for Smart Grids for high quality, stable and
reliable electricity supply of power. The monitoring of the grid system state and stability relies on the
availability of reliable measurement of data. In this paper the measurement areas that highlight new
measurement challenges, development of the Smart Meters and the critical parameters of electric energy to be
monitored for improving the reliability of power systems has been discussed.
Study of Macro level Properties of SCC using GGBS and Lime stone powderIJERD Editor
One of the major environmental concerns is the disposal of the waste materials and utilization of
industrial by products. Lime stone quarries will produce millions of tons waste dust powder every year. Having
considerable high degree of fineness in comparision to cement this material may be utilized as a partial
replacement to cement. For this purpose an experiment is conducted to investigate the possibility of using lime
stone powder in the production of SCC with combined use GGBS and how it affects the fresh and mechanical
properties of SCC. First SCC is made by replacing cement with GGBS in percentages like 10, 20, 30, 40, 50 and
by taking the optimum mix with GGBS lime stone powder is blended to mix in percentages like 5, 10, 15, 20 as
a partial replacement to cement. Test results shows that the SCC mix with combination of 30% GGBS and 15%
limestone powder gives maximum compressive strength and fresh properties are also in the limits prescribed by
the EFNARC.
Transcript: Selling digital books in 2024: Insights from industry leaders - T...BookNet Canada
The publishing industry has been selling digital audiobooks and ebooks for over a decade and has found its groove. What’s changed? What has stayed the same? Where do we go from here? Join a group of leading sales peers from across the industry for a conversation about the lessons learned since the popularization of digital books, best practices, digital book supply chain management, and more.
Link to video recording: https://bnctechforum.ca/sessions/selling-digital-books-in-2024-insights-from-industry-leaders/
Presented by BookNet Canada on May 28, 2024, with support from the Department of Canadian Heritage.
GDG Cloud Southlake #33: Boule & Rebala: Effective AppSec in SDLC using Deplo...James Anderson
Effective Application Security in Software Delivery lifecycle using Deployment Firewall and DBOM
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Paper presented at SYNERGY workshop at AVI 2024, Genoa, Italy. 3rd June 2024
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Strength Behaviour of Expansive Soil Treated with Tile Waste
1. International Journal of Engineering Research and Development
e-ISSN: 2278-067X, p-ISSN: 2278-800X, www.ijerd.com
Volume 10, Issue 12 (December 2014), PP.52-57
52
Strength Behaviour of Expansive Soil Treated with Tile Waste
1
T.Geeta Rani, 2
Ch. Shivanarayana,
3
Dr DSV Prasad, 4
Dr.GVR Prasada Raju,
1
PG Student, Dept. of Civil Engineering, BVC Engineering College, Odalarevu. AP.
2
Assistant Professor, Dept. of Civil Engineering, BVC Engineering College Odalarevu. AP,
3
Professor & Principal, Dept. of Civil Engineering, BVC Engineering College, Odalarevu, AP.India,
4
Professor, Department of Civil Engineering, Registrar, JNT University, Kakinada, AP,
Abstract:- The amount of wastes has increased year by year and the disposal becomes a serious problem. This
paper presents the effects of tile waste on, liquid limit, plastic limit, compaction characteristics, California
Bearing Ratio and swelling pressure of an expansive soil. The expansive soil collected locally was mixed with
tile waste from 0 to 30% at an increment of 10%. From the analysis of test results it was found that, liquid limit,
plastic limit, optimum moisture content, and swelling pressure are decreased, maximum dry density and
California bearing ratio are increased with an increase in tile waste.
Keywords:- Expansive soil, Tile waste, California bearing ratio, swelling pressure
I. INTRODUCTION
Expansive soils are so widespread that it becomes impossible to avoid them for highway construction.
Many highway agencies, private organizations and researches are doing extensive studies on waste materials
and research projects concerning their feasibility and environmental suitability. Swelling of expansive soils
causes serious problems and produces harm to many structures. Many research organizations are doing
extensive work on waste materials concerning the viability and environmental suitability. Expansive clays are
the most problematic soils due to their unique alternate swell-shrink behavior with fluctuations in moisture
content. World over, many case studies [1-2] of failed structures built on expansive soils have been reported.
The situation in India is also no different with extensive coverage of expansive soils that occupy almost one-
fifth of the geographical land area [3]. It is an established fact that suitable site conditions are not available
everywhere due to wide variations in the subsoil specially the presence of treacherous soils pose a challenge to
the civil engineers. To put the infrastructure in position, there is no other-go but to improve the sub soil for
expected loads and make them suitable for the type of construction planned. Further, it is to be stated that the
road alignment is constrained due to accessibility and connectivity criteria, which invariably may encounter
expansive soils enroute and hence it becomes imminent to improve their load carrying capacities due to traffic
operations with suitable treatment to the in-situ soil in general and expansive soils in particular.
The earlier ceramics were pottery objects made from clay, either by itself or mixed with other
materials, hardened in fire. Later ceramics were glazed and fired to create a colored, smooth surface. The potters
used to make glazed tiles with clay; hence the tiles are called as “ceramic tiles”. The raw materials to form tile
consist of clay minerals mined from the earth‟s crust, natural minerals such as feldspar that are used to lower the
firing temperature, and chemical additives for the shaping process. A lot of ceramic tiles wastage is produced
during formation, transportation and placing of ceramic tiles. This wastage or scrap material is inorganic
material and hazardous. Vitrified tiles are the latest and largest growing industry alternate for many tiling
requirements across the globe with far superior properties compared to natural stones and other man made tiles.
Hence its disposal is a problem which can be removed with the idea of utilizing it as an admixture to
stabilization
From the results of [4], addition of marble dust in expansive soil vary from 10% to 40% of dry weight
of clay showed a increase in maximum dry density (MDD) from 1.72 g/cc to 1.86 g/cc and decrease in optimum
moisture content (OMC) from 20.5% to 14.2%, differential free swell (DFS) of black-cotton soil is reduced
from 66.6% to 20% and significant increase in soaked California Bearing Ratio (CBR) and Unconfined
compressive Strength (UCS) values. Experimental program carried out by [5] in the laboratory to evaluate the
effectiveness of using foundry sand and flyash with tile waste for soil stabilization by studying the compaction
and strength characteristics for use as a subgrade material. The highest value of maximum dry density is
achieved for clay-foundry sand-fly ash-tile waste mix of 54:36:10:2.25 followed by other proportions. The
California bearing ratio value of clayey soil improved significantly i.e. from 2.43% to 7.35% with addition of
foundry sand, flyash and tile waste in appropriate proportion. Thus, clayey soil stabilized with foundry sand, fly
2. Strength Behaviour of Expansive Soil Treated with Tile Waste
53
ash and tile waste can be used as a sub-grade material for construction of flexible pavements in rural roads with
low traffic volume. [6], studied the effect of granite dust on the index properties of Black Cotton Soil stabilized
with 5% lime and the test results showed liquid limit and plasticity index decreases from 37% to 28% and
17.45% to 4.80%, respectively if Black Cotton Soil is blended with 5% lime and granite dust from 0% to 30%
by weight of Black Cotton Soil. With the increase in the granite dust percentage the liquid limit values decrease
from 57% to 28%, plasticity index values decrease from 37.2% to 3.7%, differential free swell decreased
drastically from 56.6% to 4.1%, shrinkage limit values increases from 8.15% to 18% with the increase in granite
dust. [7], study the strengthening of marine clay used for foundation-beds by the influence of vitrified polish
waste as an admixture. From the test results that the plasticity index improved by 38.65, liquid limit improved
by 35.66%, Shrinkage Limit increased 65.80%, Maximum Dry Density improved by 16.99%, CBR. Increased
by 187.3%, Cohesion improved by 27.34%, Angle of Internal Friction increased 50.68 and DFS value reduced
by 66.66% on addition of 15% Vitrified Polish waste as an optimum when compared with the untreated marine
clay. So finally it is concluded from the above results that the CBR value of VPW treated marine clay may be
improved by using chemicals or reinforcement techniques to use as sub grade material for the pavement
construction. [8] study of stabilization of Dune- Sand with Ceramic Tiles Wastage as admixture by conducting
California Bearing Ratio, Standard Proctor Tests and Direct shear tests. From the test results M.D.D.increases
on increasing the quantity of admixture (increment from 10% to 30%), increase in CBR values in both unsoaked
and soaked conditions. Direct Shear Test, angle of internal friction increases with increase in size of ceramic
tiles wastage and also increases with the quantity of the ceramic tiles wastage. [9] made an attempt for the
performance assessment of vitrified Polish waste and granulated blast furnace slag in mitigating the problems of
expansive soils by conducting index properties, compaction, CBR of expansive soil. When blended with the
GGBS, there is a marginal improvement in the compaction parameters, while a considerable improvement was
seen in the case of CBR value. Finally it can be concluded that the performance of the Vitrified Polish Waste
(VPW) was more effective than Ground Granulated Blast Furnace Slag (GGBS) in improving the characteristics
of problematic expansive soils. Addition of 0 to 30% ceramic dust in expansive soil results of [10], liquid limit,
plastic limit and plasticity index, OMC goes on decreasing MDD, UCS and soaked CBR increasing with
increase in percentage, , the swelling pressure decreasing with increase in percentage.
An ideal solution lies for reducing project cost, increasing longevity and reduce accumulation of waste
shall be through utilization of industrial waste combined with weak soil for pavement construction. Few types of
waste materials namely crusher dust, fly ash and tile waste are popular as admixtures in improving weak soils.
From the available literature it is found that limited research has been done to study the effects of tile waste on
different geotechnical properties of expansive soil. In the present study has been undertaken to investigate the
effects of tile waste on index properties, compaction properties, soaked California Bearing Ratio (CBR) and
swelling pressure of an expansive soil .The economy of stabilization has also been studied by strengthening the
expansive soil subgrade of a flexible pavement.
II. MATERIALS AND THEIR PROPERTIES
Materials used in the experiments are Expansive soil and tile waste for this study.
Expansive Soil: The subgrade soil used in this study was a typical expansive block cotton soil collected from
„Tanuku, West Godavari District of Andhra Pradesh State, India. The properties of the expansive type of
subgrade soil are given in Table1.
TABLE: 1 PHYSICAL AND ENGINEERING PROPERTIES OF BC SOIL
Properties of Expansive Soil Value
Grain Size Distribution
Gravel (> 4.75mm) (%) 10
Sand (4.75-0.0 75mm) (%) 85
Fines (<0.075mm) (%) 5
Coefficient of Uniformity (Cu) 13.33
Coefficient of Curvature (Cc) 5.2
Atterberg’s Limits
Liquid Limit (%) 68
Plastic Limit (%) 31.02
Plasticity Index (%) 36.98
Specific gravity 2.65
Compaction Properties
Optimum Moisture Content (%) 23.95
Maximum Dry Density (kN/m3
) 15.5
3. Strength Behaviour of Expansive Soil Treated with Tile Waste
54
Free swell index (%) 53
Soaked CBR (%) 2
Tile Waste: A ceramic tile is an inorganic, nonmetallic solid prepared by the action of heat and subsequent
cooling. Ceramic materials may have crystalline or partly crystalline structure, or may be amorphous. The tile
waste mainly consisting of 1.60% of Cao and 59.12% Silica. The physical properties are OMC-16.1%,MDD-
21.34kN/m3
.
III. LABORATORY EXPERIMENTATION
Tiles waste was collected from a local industry Narayanapuram near Tanuku, Andhra Pradesh. These
tiles were broken into small pieces by using a hammer. The smaller pieces were fed into a Los Angeles abrasion
testing machines to make it further smaller. For conducting different tests, the expansive soil was mixed with the
ceramic dust from 0 to 30% at an increment of 10%. In total 4 mixes were prepared. Liquid Limit tests, plastic
limit tests, standard Proctor compaction tests, soaked CBR tests and swelling pressure tests were conducted on
these mixes as per Indian Standard Codes for finding optimum percentage of tile waste material. The details of
these tests are given in the following sections.
Index Properties
Standard procedures recommended in the respective I.S. Codes of practice [ IS:2720 (Part-5)-1985;
IS:2720 (Part-6)-1972 ],were followed while finding the Index properties viz. Liquid Limit and Plastic Limit of
the samples tried in this investigation.
Compaction Properties
Optimum moisture content and maximum dry density of expansive soil with various percentages of tile
waste were determined according to I.S heavy compaction test (IS: 2720 (Part VIII).
California Bearing Ratio (CBR) tests
Different samples were prepared in the similar lines for CBR test using treated and untreated expansive
soil with tile waste. The CBR tests were conducted in the laboratory for all the samples as per I.S.Code (IS:
2720 (Part-16)-1979) as shown in the Fig.1.
Fig: 1 California Bearing Ratio Test Apparatus
Swell Pressure Tests
Different samples were prepared in the similar lines for swell pressure test using treated and untreated
expansive soil with tile waste. The swell pressure tests were conducted in the laboratory for all the samples as
per IS: 2720 (Part XL1) - 1977 as shown in the Fig.2.
Fig: 2 Swell Pressure Test Apparatus
4. Strength Behaviour of Expansive Soil Treated with Tile Waste
55
IV. TEST RESULTS
Index Properties
The results of liquid limit tests on expansive soil treated with different percentage of tile waste can be
seen that with increase in percentage of tile waste the liquid limit of soil goes on decreasing from 68% to 47%,
when tile waste is increased from 0 to 20% is effective beyond also there is a reduction in liquid limit as shown
in the fig.3.The results of plastic limit tests on expansive soil treated with different percentage of tile waste , it
can be seen that with increase in percentage of tile waste, the plastic limit of soil goes on decreases from 31.02
% to 24.94 % when tile waste is increased from 0 to 20% as shown in fig.4.
Compaction: All the expansive soil samples were mixed with varying percentages of tile waste material by
weight. From the test results maximum dry density increases from 15.5 kN/m3
to 16.11 kN/m3
at 20% of tile
waste, beyond which it decreases as shown in fig.5. However water content continuously decreases as shown in
the fig. 6.
California Bearing Ratio (CBR): The results of soaked CBR tests on expansive soil treated with different
percentage of tile waste are shown in Fig. 7. From the results it can be seen that with increase in percentage of
tile waste, the soaked CBR of soil goes on increasing from 2 to 4.1 when tile waste is increased from 0 to 20%.
There is 105% increase in soaked CBR of soil at this percentage of tile waste as compared to untreated soil.
Fig 3: Variation of Liquid limit with percentage of Tile Waste
Fig 4: Variation of Plastic Limit with Percentage of Tile Waste
Fig 5: Variation of OMC with Percentage of Tile Waste
5. Strength Behaviour of Expansive Soil Treated with Tile Waste
56
Fig 6: Variation of MDD with Percentage of Tile Waste
Fig 7: Variation of Soaked CBR with Percentage of Tile Waste
Fig 8: Variation of Swelling Pressure with Percentage of Tile Waste
Swell Pressure
The results of swell pressure tests on expansive soil treated with different percentage of tile waste are
shown in Fig. 8. From the results it is observed that with increase in percentage of tile waste, the swelling
pressure of soil goes on decreasing from 104 kN/m2
to 54 kN/m2
when tile waste is increased from 0 to 20% and
nearly 48% reduction in swell pressure. This happens due to decrease in clay content of the expansive soil by
replacement of tile waste, which is non-expansive in nature and that result in decrease in the swelling pressure.
It is observed from the test results that the expansive soil with tile waste has shown better performance
when compared to expansive soil without tile waste. It is also observed that from CBR and swell pressure tests
the stabilized expansive soil has shown maximum improvement compared to untreated expansive soil. From the
results of compaction, CBR, Swell Pressure Tests, the optimum percentages of tile waste is 20%.
V. CONCLUSIONS
A series of laboratory tests were conducted to study the effects of tile waste on the, liquid limit, plastic
limit, MDD, OMC, soaked CBR and swelling pressure of an expansive soil .Based on the observations,
following conclusions are drawn from this study.
6. Strength Behaviour of Expansive Soil Treated with Tile Waste
57
• The liquid limit and plastic limit decreasing irrespective of the percentage of addition of tile waste.
• The Maximum Dry Density attained at 20% tile waste and OMC goes on decreasing with increase in
percentage of tile waste.
• The soaked CBR goes on increasing with increase in percentage of addition of tile waste. There is 105%
increase in soaked CBR value as compared to untreated soil, when 20% tile waste was added.
• The swelling pressure goes on decreasing with addition of tile waste. There is 48 % decrease in swelling
pressure of soil as compared to untreated soil, when 20% tile waste was added.
From the above analysis it is found that tile waste up to 20% can be utilized for strengthening the expansive soil
subgrade of flexible pavement with a substantial save in cost of construction.
REFERENCES
[1]. Holtz, W.G. and Gibbs, H.J., "Engineering Properties of Expansive Clays", Transactions of ASCE,
Vol. 121, 1956, pp. 641-647.
[2]. Evans, R.P. and Mc Manus, K.J., "Construction of Vertical Moisture Barriers to Reduce Expansive Soil
Subgrade Movement", TRR-1652, TRB, 1999, pp. 108-112.
[3]. Snethen, D.R. et al., "An Evaluation of Methodology for Prediction and Minimisation of Detrimental
Volume Change of Expansive Soils in Highway Subgrades", Research Report, Vol. 1, 1979, Prepared
for Federal Highway Administration, Washington.
[4]. Parte Shyam Singh, Yadav R.K. (2014) “Effect Of Marble Dust On Engineering Characteristics Of
Black Cotton Soil” International Journal of Emerging Trends in Engineering and Development Issue 4,
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[5]. Amrendra Kumar, Dr. Ravi Kumar Sharma and Babita Singh(2014),” Compaction and Sub-grade
Characteristics of Clayey Soil Mixed with Foundry Sand and Fly Ash and Tile waste”, International
Conference on Advances in Engineering & Technology – 2014 (ICAET-2014) , Page PP 01-05, e-
ISSN: 2278-1684.
[6]. Jagmohan Mishra , R K Yadav and A K Singhai (2014) “Effect Of Granite Dust On Index Properties
Of Lime Stabilized Black Cotton Soil” International Journal Of Engineering Research and Science. &
Technology. 2014 Vol. 3, No. 1, February 2014 Page 19-23
[7]. Dr. D. Koteswara Rao (2013), “A Laboratory Investigation on the Affect of Vitrified Polish Waste for
Improving the Properties of Marine Clay “, International Journal of Engineering and Innovative
Technology (IJEIT) Volume 2, Issue 11, May 2013,pp 37-41.
[8]. Dr. N. K. Ameta, Dr. Wayal A. S., Puneet Hiranandani (2013) “Stabilization of Dune Sand with
Ceramic Tile Waste as Admixture”, American Journal of Engineering Research (AJER), e-ISSN: 2320-
0847 p-ISSN: 2320-0936, Volume-02, Issue-09, pp-133-139.
[9]. K. Uppaiah, G.V.R. Prasada Raju, G. Radhakrishnan, R. Dayakar Babu (2013) “ Relative
Performance Of VPW & GGBS In Improving Expansive Soil Subgrades” Proceedings of Indian
Geotechnical Conference December 22-24,2013, Roorkee Page 1-8
[10]. Akshaya Kumar Sabat(2012), “Stabilization of Expansive Soil Using Waste Ceramic Dust “, EJGE.
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