Effects of Magnetic Water in Concrete

With the recent forum discussion on Magnetic Water, we invite you to assist our members with further education on the subject. Below are links to abstracts relating to the study and application of Magnetic Water in concrete.


If you have more information, please forward to: media@aggregateRESEARCH.com

1. Effect of magnetic field treated water on mortar and concrete containing fly ash, October 2003.
By: Nan Su, Chea-Fang Wu

This research investigates the compressive strength and workability of mortar and concrete, which were mixed with magnetic water and contained granulated blast-furnace slag (GBFS). The test variables included the magnetic strength of water, the content of GBFS in place of cement, and the water-to-binder ratio (W/B). Results show that the compressive strength of mortar samples mixed with magnetic water of 0.8-1.35 T increased 9-19% more than those mixed with tap water. Similarly, the compressive strength of concrete prepared with magnetic water increased 10-23% more than that of the tap water samples. In particular, the best increase in compressive strength of concrete is achieved when the magnetic strength of water is of 0.8 and 1.2 T. It is also found that magnetic water improved the fluidity of mortar, the slump, and the degree of hydration of concrete.

Purchase this report at: www.sciencedirect.com/science

2. Effect of magnetic water on the engineering properties of concrete containing granulated blast-furnace slag, April 2000
By: Nan Su, Yeong-Hwa Wu, Chung-Yo Mar

This research investigates the workability and compressive strength of mortar and concrete, which were mixed with magnetic field treated water (MFTW) and contained fly ash. MFTW was obtained by passing tap water through a magnetic field. Test variables included the magnetic strength of water, fly ash content in place of cement, water-to-cementitious material ratio (W/CM) and curing age.

Results show that the compressive strength of mortar samples mixed with MFTW is higher than those prepared with tap water. The best compressive strength increase of concrete is achieved when the magnetic strength of treated water is of 0.8 and 1.2 T. The compressive strength increase of concrete prepared with MFTW is more significant at early age.

Purchase this report at: www.sciencedirect.com/science

3. Effect of Magnetic Water on Engineering Properties of Concrete, Feb 2009
By: Saddam M. Ahmed (Assistant Lecturer, College of Engineering / Water Resources Department University of Mosul / Iraq)

This research investigates the influence of magnetic water on compressive strength and workability (consistence) of concrete. Results show that the compressive strength of concrete samples prepared with magnetic water increases 10-20% more than that of the tap water samples. In the present study, increasing in compressive strength of concrete is achieved when the magnetic strength of water is 1.2 T, and velocity of water current that passes through magnetic field is of 0.71 m/s. It is also found that magnetic water improves the workability (consistency) of fresh concrete.

View this report at: http://alrafidain.engineering-coll-mosul.com

4.  Revolutionary innovative technology for the manufacturing of concrete using water treatment and colloidal mixing
By:  FML Concretec, Germany

After comprehensive research and development as well as long term practical demonstrations at an RMC plant, the company FML Concretec is now implementing a
new mixing method into the market.

The new method splits the conventional mixing procedure into two production steps:

Step 1: Water treatment and manufacturing of the binder suspension in the FML colloidal mixer.

Step 2: Mixing the suspension and the aggregates either in an available mixer/homogenizer or in a concrete mixer truck.

The water (fresh or recycled water), which is needed for the manufacturing process, is physically (electrically and electro-dynamically) treated in the first step (FML water treatment system “WTS”). In this process the water clusters, consisting of water molecules, which are bonded by the hydrogen bridges, are dissolved. It is important to point out that the water treatment system is adjustable to all different kinds of water, cement and admixtures.  Then the treated water, which has been altered in its structure and is now “finer” and electrically loaded, is supplied to the colloidal mixer.

The function of the colloidal mixing method is to separate the binding agent particles (cement, fly ash, slag, limestone powder) from each other, to shear them and to disperse them equally in the suspension during the mixing process.

For an optimal chemical reaction the greatest possible active surface of the respective materials is needed. The smaller the particles are, the greater their surface area in relation to their volume. As a result of the interior construction of the mixer and the high peripheral velocity of the mixer blades the colloidal mixer creates high shearing as well as cavitation forces.

Therefore, the binding agents are not just dispersed very well, but in addition they are partially ground similar to a wet grinding process in a colloidal mill, leading to a greater active surface area and allowing to upgrade low class cements…

Download this document at www.aggregateRESEARCH.com/resources/items/Documents/RevolutionizingConcreteMix.pdf

View the forum discussions.

If you have more information on this subject, please forward to: media@aggregateRESEARCH.com

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