Lab ServicesMortar Testing

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Phone: 847-972-3122
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ASTM C 227 Potential Alkali Reactivity of Cement-Aggregate Combinations (Mortar-Bar Method)Lab ID 65

Use
Concrete prisms are fabricated and monitored to evaluate the susceptibility of an aggregate for participation in the expansive alkali-silica reaction.

Instructions
Both coarse and fine aggregates should be sampled in accordance with ASTM D 75. Send job cement and aggregates (coarse/fine) or CTLGroup will provide a high alkali cement or typical Type I cement. Need 7 kg (15 lbs) of cement and 25 kg (50 lbs) of aggregate.

Results Produced
Percent length change of specimen.

Time for Results
Results are usually available within 120 working days (six to seven months total time).

Alternate Tests
ASTM C 1260 accelerated detection of potentially deleterious expansion of mortar bars due to alkali-silica reaction.

Related Tests
ASTM C 289 Potential Reactivity of Aggregates (Chemical Method) ASTM C 1293 Potential Reactivity of Concrete Aggregates in Concrete

Test Designation
ASR - C227 Pot Reactivity, Mortar Meth

Sample Type
cement, aggregates (fine and coarse)