The pore structure in turn depends on other factors such as the mix design, degree of hydration, curing conditions, use of supplementary cementitious materials, and construction practices. Therefore, wherever there is a potential risk of chloride induced corrosion, the concrete should be evaluated for chloride permeability. The rapid chloride-ion permeability test (rcpt) is designed to assess the resistance of concrete to the penetration of chloride ions, an indicator of its permeability. Complete with tools kit.
RCPT apparatus is a fully self-contained test device complete for Rebar manufacturers, civil engineering laboratories and R&D purpose as per ASTM C1202, AASHTO T277 and ASTM C 1760.
Complete rapid chloride ion permeability tester includes the following items:
- RCPT test apparatus with 4 port (230~250 V AC power supply)
- Plexiglass chambers – 4 pairs
- 300mm vacuum desiccator
- Vacuum pump with gauge
- Moisture trap
- Temperature probe
- Tests sealant + gun acrylic sealer + brush
Rating of chloride permeability of concrete according to the rcpt test apparatus is as below:
Rating | Typical concrete type permeability coulombs |
High | >4000 high w-c ratio (> 0.6) conventional PC concrete |
Moderate | 2000 to 4000 moderate W-C ratio (0.40 to 0.50) conventional PC concrete |
Low | 1000 to 2000 low W-C ratio (< 0.40) conventional PC concrete |
Very low | 100 to 1000 latex-modified concrete, internally sealed concrete |
Negligible | < 100 polymer-impregnated concrete, polymer concrete |