scholarly journals The effect of using magnetized water on the percentage of cement in the Concrete mixture

2014 ◽  
Vol 11 (2) ◽  
pp. 605-613
Author(s):  
Baghdad Science Journal
Keyword(s):  
Magnetic Field ◽  
Compressive Strength ◽  
Tap Water ◽  
Concrete Mixture ◽  
Magnetic Intensity ◽  
Fixed Amount ◽  
Concrete Mixtures ◽  
Magnetized Water ◽  
Magnetic Strength ◽  
The Magnetic Field

This research studied the effect of magnetized water in concrete preparation and its effect on the presenting of cement in concrete mixtures also to find the ability of reducing the amount of cement in preparing one cubic meter, this is not exceed than 10% in one mixture , The experiments showed the preparation of standard cubes from the concrete which was used two kind of water magnetized water which was prepared by passing the tap water through the systems of different magnetic strength in terms of (6000,9000) Gauss and the ordinary water . The velocity of water through the magnetic field, which gives us the highest value for the compressive strength, was up to 1m/sec. to determine the best magnetic intensity, we examined The compressive strength and workability of the concrete which is not effect on the efficiency of the structure because of reducing cement percentage. The tests for compressive strength on concrete mixture with magnetized water appeared an increase (24%) compared to the results of the control cubes with fixed amount of cement; also the cubes with less amount of cement showed an increase (22%) and both cases give us higher compressive strength and workability.

scholarly journals The influence of the electromagnetic field on the electric properties of water

2020 ◽  
Vol 10 (5) ◽  
pp. 507
Author(s):  
Redouane Mghaiouini ◽  
Abderahmane Elmalouky ◽  
Nisrine Benzbiria ◽  
Radad El Moznine ◽  
Mohamade Monkade ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Electromagnetic Field ◽  
Electric Conductivity ◽  
Tap Water ◽  
Water Circulation ◽  
Frequency Range ◽  
Magnetized Water ◽  
Circulation Circuit ◽  
Closed Water ◽  
The Magnetic Field

<p>This paper presents an experimental study to investigate the effect of using the electromagnetic field on the electric conductivity and dielectric properties of treated tap water by aqua 4 D system according to the time of exposition in a closed water circulation circuit. There is a portion where there is an electromagnetic field obtained by the electromagnetic device. This work includes tap water circulation in the region of the electromagnetic field for 5 min, 10, 15, 20 min. The dielectric and electrical properties were examined and analyzed using the technique impedance spectroscopy in the frequency range going from 0.1 Hz to 1 MHz.</p><p>To initiate the phenomena involving water after magnetization with the electromagnetic field. The results clearly show that the magnetic field reduces the dielectric constant and resistance of water and increase its electric conductivity. In this study, we also find that the electrical conductivity of magnetized water increases.</p>

scholarly journals Magnetic Water Effect on Concrete Properties of Canal Lining

2018 ◽  
Vol 7 (4.20) ◽  
pp. 194 ◽  
Author(s):  
Raad Hoobi Irzooki ◽  
Ammar Saleem Khazaal ◽  
Zaid Imad Mohammed
Keyword(s):  
Surface Tension ◽  
Compressive Strength ◽  
Tap Water ◽  
Magnetic Field Effect ◽  
Irrigation Canal ◽  
Water Effect ◽  
Magnetized Water ◽  
The Cost ◽  
The Magnetic Field ◽  
Magnetic Water

The present research investigated the magnetic field effect on the properties of tap water and the magnetic water effect on some properties of the concrete used for irrigation canal lining, so, for this purpose, the absorption and seepage features of concrete will be studied. The magnetic water was obtained by passing the tap water through magnetized devices with three different intensities (3000, 5000, and 7000) Gauss for 120 minutes. Some properties of magnetized water such as surface tension, viscosity, conductivity, TDS, and pH were studied. The results show that the surface tension, viscosity and electric conductivity of treated water with three different magnetization intensities were decreased about (19-22)%, (4-5)% and (6-8)% respectively as compared with results of the tap water. Also, the results show that pH was increased about (8-10)%. The magnetized water effect on the properties of concrete like compressive strength, slump, absorption, and seepage were studied. The results show that using the magnetized water (with three different intensities) instead of the tap water increased the compressive strength of concrete between (3-17)% for age of 28 days, and increased the slump between (5-13)mm. This leads to the possibility of increasing the water-cement ratio, which is, means decreasing the cost of concrete at a specified value of compressive strength. Also, the results show that the absorption and seepage were decreased about (1-9.5) % and (2-20)% respectively.  

scholarly journals Effect of Magnetic Water Treatment on Prevention of CaCO3 Scales

2013 ◽  
Vol 10 (1) ◽  
pp. 73-84
Author(s):  
Baghdad Science Journal
Keyword(s):  
Magnetic Field ◽  
Calcium Carbonate ◽  
Water Flow ◽  
Permanent Magnets ◽  
Thick Layer ◽  
Total Dissolved Solids ◽  
Magnetic Treatment ◽  
Magnetic Strength ◽  
Device Free ◽  
The Magnetic Field

Permanent magnets of different intensities were used to investigate the effect of a magnetic field in the process of preventing deposits of calcium carbonate. The magnets were fixed on the water line from the tap outside. Then heating a sample of this water in flasks and measuring the amount of sediment in a manner weighted differences. These experiments comprise to the change of the velocity of water flow, which amounted to (0.5, 0.75, 1) m/sec through the magnetic fields that are of magnetic strength (2200, 6000, 9250, 11000) Gauss, and conduct measurements, tests and compare them with those obtained from the use of ordinary water.The results showed the effectiveness of magnetic treatment in reducing the rate of deposition of calcium carbonate where up to 60% after treatment, and this percentage is increasing with increasing magnetic field strength where up to 85% when the intensity of the magnetic field 9250 and 11000 Gauss at the velocity of the water flow of 0.75 m/sec. This percentage of reducing was investigated with increasing the velocity of flow of water through a magnetic field. Also the results showed an increase in total dissolved solids (TDS) as well as electrical conductivity and a decrease in the value of surface tension as a result of magnetic treatment.Observation with the photograph pictures of the distillation apparatus oriented in several laboratories, that the amount of sediment formed a thick layer in the device-free magnetic treatment, but it was not dense and in the few quantity in the apparatus treated with magnetic intensity (8000, 9250) Gauss.

Compressive Strength of Concrete from Lightweight Bubbles Aggregate

2015 ◽  
Vol 754-755 ◽  
pp. 348-353 ◽  
Author(s):  
Norlia Mohamad Ibrahim ◽  
Leong Qi Wen ◽  
Mustaqqim Abdul Rahim ◽  
Khairul Nizar Ismail ◽  
Roshazita Che Amat ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Experimental Study ◽  
Compressive Strength ◽  
Natural Resources ◽  
Concrete Structure ◽  
Concrete Mixture ◽  
New Materials ◽  
Concrete Mixtures ◽  
Compressive Strength Of Concrete

Compressive strength of concrete is the major mechanical properties of concrete that need to be focused on. Poor compressive strength will lead to low susceptibility of concrete structure towards designated actions. Many researches have been conducted to enhance the compressive strength of concrete by incorporating new materials in the concrete mixture. The dependencies towards natural resources can be reduced. Therefore, this paper presents the results of an experimental study concerning the incorporation of artificial lightweight bubbles aggregate (LBA) into cementations mixture in order to produce comparable compressive strength but at a lower densities. Three concrete mixtures containing various percentages of LBA, (10% - 50% of LBA) and one mixture used normal aggregate (NA) were prepared and characterized. The compressive strength of LBA in concrete was identified to be ranged between 39 MPa and 54 MPa. Meanwhile, the densities vary between 2000 kg/m3 to 2300 kg/m3.

Calculation of Magnetic Field of the 168 kA Aluminum Reduction Cell with ANSYS

2012 ◽  
Vol 524-527 ◽  
pp. 1993-1996
Author(s):  
Yan Li Jiang ◽  
Liang Yu ◽  
Nai Xiang Feng
Keyword(s):  
Magnetic Field ◽  
Aluminum Reduction Cell ◽  
Short Axis ◽  
Magnetic Line ◽  
Magnetic Intensity ◽  
Aluminum Reduction ◽  
Reduction Cell ◽  
Project Analysis ◽  
Intensity Vector ◽  
The Magnetic Field

The magnetic field of the 168 kA aluminum reduction cell was calculated with the software ANSYS in our study. The calculated results showed that the magnetic line of the aluminum and electrolyte in cell formed a clockwise swirl. The X and Z magnetic intensity of aluminum was similar with the antisymmetric distribution and the magnetic intensity vector of aluminum reduced along the -Z axis. The X, Y and Z magnetic intensity in the electrolyte under the anode bottom was similar with the antisymmetric distribution along short axis (Y axis), long axis (X axis) and short axis (Y axis), respectively. The magnetic intensity vector of electrolyte in the gap of the anode was higher than that under the anode bottom. The X and Z magnetic intensity in the interface of melt was also similar with the antisymmetric distribution. The numerical simulations with ANSYS have the important references for project analysis and diagnose.

scholarly journals Mathematical modeling of electromagnetic environment at railroad junctions

2019 ◽  
Vol 91 ◽  
pp. 01010
Author(s):  
Natalya Buyakova ◽  
Vasiliy Zakaryukin ◽  
Andrey Kryukov
Keyword(s):  
Magnetic Field ◽  
Field Strength ◽  
Magnetic Field Strength ◽  
Field Distribution ◽  
Rolling Stock ◽  
Electromagnetic Environment ◽  
Environment Modeling ◽  
Underground Pipelines ◽  
Magnetic Strength ◽  
The Magnetic Field

Results of computer-aided studies of electromagnetic environment at railroad junctions of alternating current electrified railroads having voltage of 25 kV are presented. A large number of lines and overhead catenaries significantly complicate the picture of electromagnetic field distribution. The nature of the field distribution in space is significantly affected by the rolling stock on station tracks. Besides, the task of electromagnetic environment modeling is complicated by the presence of underground pipelines and enclosures, and reinforced concrete passenger platforms. During the transfer of power of 10 + j10 MV·A through the junction of overhead system, the magnetic field strength at a level of 1,8 m is considerably less than the magnetic strength at a railway haul due to current distribution on overhead system of several tracks. Magnetic field strength levels in calculation examples do not exceed amplitude of 30 A/m. The train performance leads to changes in the strengths of the electrical and magnetic fields. The dynamics of changes is presented as a result of simulation modeling of train movement modes.

AN ELECTROMAGNETIC INTERPRETATION PROBLEM IN GEOPHYSICS

Geophysics ◽  
1951 ◽  
Vol 16 (3) ◽  
pp. 431-449 ◽  
Author(s):  
L. B. Slichter
Keyword(s):  
Magnetic Field ◽  
Electrical Properties ◽  
Magnetic Field Intensity ◽  
Vertical Component ◽  
Single Frequency ◽  
Magnetic Intensity ◽  
Conductivity Function ◽  
The Magnetic Field ◽  
Surface Observations ◽  
Interpretation Problem

An interpretation problem in electromagnetic prospecting is discussed. A flat earth in which the three electrical properties of material vary only with depth is subjected to an alternating inducing field produced by a dipole above the surface with axis perpendicular to the surface. Observations of the horizontal or of the vertical component of the magnetic intensity at the ground’s surface are supposed to be available at all distances. From these observations solutions for the three unknown functions are developed. When the magnetic permeability is variable, the solutions for the permeability and dielectric functions require observations at two different frequencies. The conductivity function may be found from observations at a single frequency. It is shown that the horizontal and vertical components of the magnetic field intensity are mutually dependent in the region above the ground’s surface; and formulae independent of the ground’s characteristics are deduced for expressing [Formula: see text] in terms of [Formula: see text], and vice‐versa. Here [Formula: see text] denotes a plane coincident with or above and parallel to, the earth’s surface.

On Damage Evaluation Method of the Ferromagnetic Material Based on Weak Magnetic Field Detection Technology

2006 ◽  
Vol 324-325 ◽  
pp. 331-334 ◽  
Author(s):  
Feng Yun Yu ◽  
Chuan Xu Zhang ◽  
Miao Wu
Keyword(s):  
Magnetic Field ◽  
Standard Deviation ◽  
Evaluation Method ◽  
Spontaneous Magnetization ◽  
Tensile Load ◽  
Ferromagnetic Material ◽  
Magnetic Intensity ◽  
Damage Level ◽  
Detection Technology ◽  
The Magnetic Field

The increase of magnetic field of ferromagnetic components under service load and geomagnetic field is induced by the residual magnetic induction and spontaneous magnetization. The stress concentration positions can be found by detecting the magnetic field and the fracture can be avoided. The variation of the residual magnetic intensity of bearing carriers under different damage conditions is studied in this paper; the statistical characteristic of the residual magnetic intensity of the specimens in different residual deformations is got, and a concept of residual magnetic intensity standard deviation is put forward with a lot of experiments and in-depth theoretic analysis. The results indicate that the curves of residual magnetic intensity standard deviation appear obvious turning points when the specimens reach the yield point in different original magnetic field conditions, and that the function between residual magnetic intensities standard deviation, tensile load and strain is established. Therefore, the plastic deformation can be judged by the variation of the magnetic field in their service process, and the damage level can be evaluated consequently, which gives a new reliable method to estimate the deformation of ferromagnetic material.

Experimental Study on Ammonia-Water Bubble Absorption in External Magnetic Field

2011 ◽  
Vol 291-294 ◽  
pp. 1653-1656
Author(s):  
Wei Dong Wu ◽  
Zeng Yang Li ◽  
Sheng Xiang Chen ◽  
Si Mei Liu
Keyword(s):  
Magnetic Field ◽  
External Magnetic Field ◽  
Ammonia Concentration ◽  
Absorption Refrigeration ◽  
Magnetic Intensity ◽  
Strengthening Mechanisms ◽  
Refrigeration System ◽  
Ratio Increase ◽  
Absorption Refrigeration System ◽  
The Magnetic Field

Absorber is a key component of absorption refrigeration system, in which there is a complicated heat and mass transfer. To improve the performance of absorber, the magnetic field was used as a enhancing way, the experiments of NH3/H2O bubble absorption in magnetic field were carried out. The results showed that the NH3/H2O bubble absorption can be strengthened by the magnetic field. Both AR(absorption rate) and EAR(effective absorption ratio) increase with the increase of magnetic intensity within the range of 0~280mT. The EAR is always higher than 1 when the external magnetic field exists. The EAR reaches the maximum 1.069 when the initial ammonia concentration is 20wt% and the magnetic intensity is 280mT. The primary strengthening mechanisms are also explained.

scholarly journals Effect of magnetic intensity on diameter of charged jets in electrospinning

2014 ◽  
Vol 18 (5) ◽  
pp. 1451-1454 ◽  
Author(s):  
Hong-Ying Liu ◽  
Lan Xu ◽  
Na Si
Keyword(s):  
Magnetic Field ◽  
Permanent Magnets ◽  
Electrospinning Process ◽  
Magnetic Intensity ◽  
Ampere Force ◽  
Fiber Size ◽  
The Magnetic Field

In the electrospinning process, the rotating charged-jet moves between the permanent magnets, as a result Ampere force is generated. Experiment shows that the magnetic field can decrease fiber size and enhance the uniformity of fiber size.

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