Impact of magnetized water on concrete strength at
compressing
| Water |
Materials consumption,
kg/m3 |
Water/cement ratio |
Hardness, s |
Cone settling, cm |
Strength for compression after warm-
humid treatment, mPa/% |
| Cement |
Crushed stone |
Sand |
Water |
1 day |
28 days |
| Normal |
400 |
1115 |
690 |
185 |
0.46 |
19 |
1.5 |
27.1/100.0 |
33.7/100.0 |
| Magnetic |
400 |
1115 |
690 |
185 |
0.46 |
11 |
2.5 |
27.7/102.0 |
40.7/120.8 |
| Normal |
460 |
915 |
725 |
230 |
0.5 |
16 |
6.0 |
24.5/100.0 |
35.3/100.0 |
| Magnetic |
460 |
915 |
725 |
230 |
0.5 |
9 |
12.0 |
26.6/108.6 |
41.6/117.8 |
| Normal |
405 |
1185 |
690 |
160 |
0.395 |
15 |
1.5 |
15.2/100.0 |
39.6/100.0 |
| Magnetic |
405 |
1190 |
690 |
154 |
0.38 |
15 |
1.5 |
20.0/131.6 |
44.0/111.1 |
Impact of magnetized water on concrete strength at
tension
| Water |
Materials consumption,
kg/m3 |
Water/cement ratio |
Hardness, s |
Cone settling, cm |
Strength at 7 days, mPa/% |
| Cement |
Crushed stone |
Sand |
Water |
For compression |
For tension at breaking |
| Normal |
400 |
1170 |
680 |
164 |
0.41 |
12 |
- |
39.5/100.0 |
2.48/100.0 |
| Magnetic |
400 |
1170 |
680 |
164 |
0.41 |
9 |
- |
37.8/105.3 |
2.82/113.0 |
| Magnetic |
405 |
1185 |
690 |
158 |
0.39 |
11 |
- |
39.0/108.6 |
3.17/128.0 |
| Normal |
385 |
1015 |
750 |
231 |
0.6 |
- |
12.0 |
20.3/100.0 |
2.4/100.0 |
| Magnetic |
385 |
1015 |
750 |
231 |
0.6 |
- |
14.5 |
21.9/108.0 |
2.7/113.0 |
As is seen from the above examples, tension strength is
always higher than compression
strength. In other words, ratio between tension strength at
breaking and compression strength
in concrete made with magnetized water increased by 25%. It can
be explained by a more
homogenous lattice of new formations of hydrated cement
minerals, mixed with magnetized
water. It is worth mentioning that the same phenomenon happens
in ceramic materials. Increased
tension strength of concrete leads to an extra effect of saving
cement, additives and thermal
energy when magnetized water is used for concrete, for which
tension strength is vital.
But even when compression strength is the main factor for
concrete, statistically relevant
confirmation of increasing ratio of concrete tension and
compression strength allows to
increase calculated resistance of concrete at tension in
standards for designing concrete
construction. It would reduce rods' usage and the required value
of their initial tension
in elements of the first and second categories of crack-
resistance. Requirements for horizontal
rods, fixed as calculated for horizontal strength, for crushing
and other cases would also
drop. Reduction of rods' usage is approximately proportional to
increasing of concrete
tension strength.
