Summary
Functional repair/reinforcement
mortar for neutralization resistance.
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Methods
Click on a method's number to get a more detailed description. 5
- 6 - 8
- 9 - 14
- 15 - 16
- 17
18 - 21
- 32 - 33
- 37
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RE-PH Mortar
Product Description
RE-PH Mortar is a high quality polymer cement mortar composed of dry
composite cement and a liquid binder made from water based acrylic
co-polymer. It is used as a repair material and protectant for problem
areas damaged by neutralization.
Application
- Concrete Bridges
- High Traffic Level Areas
- Tunnel Lining Repair
- Reinforced Concrete Structures
- Mixing equipment: Hand mixer, power mixer. Small silo & continuous
mixer.
- Gauge: Scales.
- Application equipment: Trowel, recommended spraying tool.
- Excellent neutralization resistance properties
- Alkali resistance properties for carbonated concrete
- Carbonic gas and water percolation resistance properties
- Rust protection for reinforced bars
- Adheres well with existing concrete structures
- Resists cracking with high flexural strength.
- Inhibits drying and shrinkage cracking
Test Results
Test Methods : ASTM C 109, ASTM C 579, ASTM C 1439
| Test
Item |
Test
Result |
| Compressive
Strength
(N / cm2) |
3
days |
7
days |
14
days |
28
days |
2,950 |
3,840 |
4,250 |
5,310 |
| Bending
Strength
(N / cm2) |
3
days |
7
days |
14
days |
28
days |
710 |
830 |
970 |
1,130 |
| Bond
Strength
(N / cm2) |
3
days |
7
days |
14
days |
- |
164 |
237 |
305 |
- |
Mixing Ratio
| RE-PH
Mortar
|
| Type
A |
Type
B |
1
kg |
0.18
~ 0.20 kg
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Directions
- Measure 1 lb of Type A and .149 – .16 lb of Type B in each container.
- Amount of Type B may vary depending on temperature and humidity
- At initial mixing, mix .14 lb of Type B to 1 lb of Type A, and
add type within 10% in consideration of workability in 5 minutes
and mix again for 3 minutes before application.
- As various additives are mixed mix mortar sufficiently (5 minutes
or longer) .
- Dampen concrete surface with water or type B before application
to ensure that concrete does not wick away moisture from mortar
mixture.
- Apply the mortar using a trowel or recommended spraying tool.
- A sufficient curing is required under the temperature below 50°F.
- In case of any condensation on surface, dry the surface using
a heater, fan, air compressor or portable burner.
- In case of hot-weather concreting on dried surface, spray refined
water or liquid to prevent the mortar from drying too rapidly.
- Limit the amount of mixed material at normal temperature so that
it can be applied within 30 minutes.
- Do not use if powder hardens or liquid freezes.
- No application shall be allowed at the temperature below 31°F
or above 95°F.
- As the viscosity varies depending on temperature and humidity,
keep agitating to prevent the aggregate from being segregated in
a low viscosity, and add type B within a mixing ratio allowable
before agitating the material in high viscosity.
- Protect the surface from external impact at least for 24 hours
after application, and continue after checking curing state.
- Protect the surface from wind or direct sunlight after application.
- Refer to instruction on storage of powder or liquid-type material
for further details. If problems persists, contact the manufacturer.
- Those not instructed in specifications may follow standard concrete
specifications.
- In the event of any discrepancies between the specification and
work environment, consult the manufacturer or designer before application.
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