WSP Concrete Forensic and Materials Investigation SOQ

CHEMICAL ANALYSIS, CORROSION STUDIES AND REACTIVITY TESTING

WSP’s laboratories performs specialized testing of concrete to evaluate the current condition and help predict future performance. We perform chloride ion and hydroxyl ion concentration test ing to evaluate the condition of the concrete and evaluate the corrosion potential of the embedded

reinforcing steel. We perform wet chemistry meth ods as well as ion chromatography. We perform an array of aggregate reactivity testing to evaluate the future performance of concrete aggregates with respect to reactivity.

TESTING z Chloride Content, Water Soluble (ASTM C1218) z Chloride Content, Acid Soluble (ASTM C1152) z Rapid Chloride Ion Permeability (ASTM C1202) z Sulfate Content of Concrete (ion chromatography) z Potential Reactivity of Aggregates (ASTM C1260) z Potential Reactivity of Aggregates combinations of cementitious materials (ASTM C1567) z pH of Concrete (internal laboratory procedure) z Cement Content of Hardened Concrete (ASTM C1084) z Water-extractable Chloride in Aggregates (C1542) z Expansion of Cement Mortar Bars in Water (ASTM C 1038) z Length Change of Concrete due to Alkali-Carbonate Rock Reaction (ASTM C1105)

AREAS OF EXPERTISE

z Potential Reactivity of Cement Aggregate Combinations, 12 month testing period (ASTM C227) z Length Change of Concrete due to Alkali-Silica Reaction (ASTM C1293) z Concrete Expansion with Ground Blast-Furnace Slag (ASTM C441) z Potential Reactivity of Carbonate Rocks (ASTM C586) z Length Change of Hydraulic Cement Mortars Expose to Sulfate (ASTM C1012) z Duggan Expansion Test, including sample preparation z SikaFerroGard 903 Depth Testing z Petrographic Description of Rock (ISRM 1977) (ASTM D4992) z Examination of Hardened Masonry Mortar (ASTM C1324)

Chloride Ion Concentration Testing

Hydroxyl Ion Concentration Testing

Aggregate Reactivity Testing

Wet Chemistry Methods

Ion Chromatography Testing

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Concrete Forensic and Materials Investigation Services