HOME Methods Concrete Anticorrosive·Waterproofing Work
Corrosion of iron rods should be prevented and protected when the applied conditions of various structures are designed to block water and moisture or when harmful ions penetrate due to lack of the depth of concrete coating or because of cracks on the surface of concrete originating from the behavior or vibration of a structure.

This technology makes lighter the admixture of PPS (Pozzolan Polymer Stearate) artificial inorganic compounds and maximizes its dispersibility so that it can, unlike currently available similar technologies, secure the uniformity of its quality when putting it into and mixing it in a truck agitator so as to ensure the production of concrete of a higher waterproofness and rust-resistance than existing watertight concrete.

If the PPS Corrosion-inhibitor and Waterproof Admixture is added when making concrete, it will improve waterproofness of concrete by three times and, at the same time, increase the rate of rust resistance of iron reinforcing rods by more than 95%; therefore, without additional membrane-type waterproofing works, the waterproofness preventing the penetration of water and moisture and the rust resistance protecting iron rods from being corroded due to chemically deteriorating substances can be sustained for the same duration of the concrete, from which the longevity and durability of a structure can be expected.

Accordingly, this is a resource-saving, eco-friendly, membrane-free waterproofing and antirust concrete-making method, which can not only lower the volume of industrial wastes and bring out the reduction of the consumption of raw materials through the lengthening of the life of a structure but also reduce its initial construction costs and LCC (life cycle costs)
1. Economic efficiency by securing both anti-corrosion and waterproof performance at same time.
2. Easiness in quality control and reducing construction period by simplifying process.
3. Prevention of steel bars corrosion only by placing concrete and no necessity to take separate anti-corrosive
    treatment.
4. Easiness in carrying out construction works under bad conditions such as under damp environment and in
    limited space.
5. Improvement of concrete quality such as improvement of chemical resistance, corrosion resistance and
    freezing and thawing resistance, etc.
6. Certified eco-friendly product to reduce industrial waste generation due to long life structures.
7. Prevention of whitening and dew condensation, and reduction of maintenance cost due to keeping same
    durability as concrete body.
[Standard Quality]
Item Quality Standard Test Method
Water
Tightness
Coagulation
Setting Time
Difference(min.)
Initial Set ­60 ~ +60 Per KS F 4926
Final Set ­60 ~ +60
Compression Strength Ratio More than 1.0 of conventional concrete
Water Absorption Coefficient Ratio Less than 0.55 of conventional mortar
Water Permeation Ratio Less than 0.55 of conventional mortar
Chlorine Ion Penetration Depth Less than 3.0mm
Corrosion
Resistivity
Steel Re-bar Corrosion Accelerated Test inside Concrete More than 95% of Corrosion Resistivity Per KS F 2561
(Per ㎡)
Item Standard Unit Thickness of Concrete (㎝)
T=30 T=40 T=50 T=60 T=70 T=100
PPS Corrosion-inhibitor Waterproof Admixture Hipermix JSCI-99 3.3 4.4 5.5 6.6 7.7 11.0
Utensil Rent Fee 3% of material cost L/S 1 1 1 1 1 1
Concrete Mixing Labor MD 0.003 0.004 0.005 0.006 0.007 0.01
Common Labor MD 0.006 0.008 0.010 0.012 0.014 0.02
① The input quantity of Powdered Corrosion-inhibitor · Waterproof Admixture shall be 11kg/㎥ in case
    compressive strength is less than fck=27MPa; in case it is more than fck=27MPa, a fixed quantity of 12kg/㎥
    should be added.
② No separate anti-corrosion work required with concurrent anti-corrosion & water proofing characteristics.
③ To separately calculate the estimated labor required index treatment for such as filling of form tie hole,
    installation joint etc.
④ The above labor estimation is calculated based on the compressive strength of less than fck=27MPa.
⑤ To separately caculate the estimated labor required index treatment for such as filling of form tie hole,
    installation joint & etc.