• Lightweight, easy to carry kit uses environmentally safe reagents.
• Test is complete in less than five minutes.
• Requires freshly-broken surface of sample.
ASR Detect is a rapid detection procedure for presence of alkali-silica reactivity in hardened concrete. This simple test, developed and patented by Los Alamos National Laboratories, can be performed by field personnel with minimal training. Reagents are used to define both beginning and advanced stages of ASR by color indication. Costly petrographic analyses may be minimized when diagnosing concrete deterioration.
Each of two reagents is applied in turn to a freshly broken concrete surface and rinsed with water. The first reagent exchanges sodium with the potassium present in some ASR gels and leave a bright yellow precipitate, indicating the initial stages of ASR degradation. Application of the second chemical results in a bright pink stain if there is a calcium-rich gel present, indicating degradation is more advanced. Concrete with no ASR is unaffected. Test is complete in less than five minutes. Resultant reaction stains are permanent, so there is no need for repeat testing.
Kit includes: One 60ml (2oz) bottle of each of the two reagents, a 250ml (8oz) bottle of distilled water, two disposable dispensing pipettes, one pair of protective gloves and goggles, an apron, and plastic carrying case. The kit contains enough of the environmentally safe reagents to perform about ten tests. Replacement kit HM-262X contains one 60ml (2oz) bottle of each of the two reagents.