CONCRETE REPAIR MATERIALS
In doing repairs on the damaged concrete and want to repair, usually done in several ways as below:
1. Grouting
2. Epoxy
3. Bonding Agent
4. Repair
5. Shotcrete
Here is an explanation of the properties, uses, and how to make the concrete repair material that is generally done.
1. Grouting
The properties of Grouting:
- Consists of one component
- Workability and high strength
- Hold the load impact and moving loads
- No shrinkage and segregation
- Economical
Used in:
- Stand the machine foundation
- Charging anchor
- Improvements in the porous concrete
- Bearing pads
How to use Grouting:
- Every 1 m3 requires 2000 kg
- The concrete surface is cleaned of dirt (dust, oil etc)
- Mix the grout material and water and stirred
- The part that will grouted prepared with a good formwork
- Apply the grout material in a way that will be poured on the grouted
- Sealing the formwork of the possibility of leaks
2. EPOXY
The properties of epoxy
- Consists of two components: a resin and hardener
- Super low viscosity
- Can be used in dry and humid
- Having a high adhesive and mechanical
- Hard but not brittle
Purpose Epoxy:
- Fill gaps, cracks and concrete structures, between 0.2 mm and 5 mm
How to use Epoxy:
- 1 m3 requires 1000 kg
- Combine the two components (2:1)
- How gravity (poured) for horizontal cracks
- In general, the way the pressure injection
3. Bonding agent
Properties of the Bonding Agent:
- There are several types: synthetic dispersion resins, styrene butadiene rubber, polyvinyl acetate and epoxy materials
- Adding powerglue on the connection of old and new concrete
- Increase elasticity
- Reduced shrinkage (shrinkage)
- Chemical and abrasion resistance are increased
Purpose Bonding Agent:
- Grafting of old and new concrete
- Plastering and dough
- The adhesive material for patching and repair mortar
How to use Bonding Agent:
- 4-6 kg m2 require a bonding agent
- Painted on a concrete surface long before the cast
- To glues and dough, bonding agent mixed with the slurry
4. REPAIR
Properties of Repair:
- Generally consists of two components (powder + liquid)
- Contains polyamide fibber that does not easily crack repair material
- Particularly high bending strength
- Watertight
- Easy installation
Repair Usefulness:
- Repair of concrete surfaces
- Repair concrete cracks
- Charging a small loss on the concrete
- Improved levelling floor
- The adhesive on the ceramic pair, lightweight concrete
Repair How to use:
- 1 m2 and a thickness of 1 mm requires 2 kg
5. SHORTCRETE
Shortcrete properties:
- Consisting of powder and liquid form
- The thickness of the concrete can be arranged
- Economical
- Coating by spraying mortar or concrete by means of pressure
Shortcrete Usefulness:
- Suitable for concrete construction
- Pavement and slope stabilization
- Repair beams and columns