| Abstract | To combat sulphate attack on underground concrete structures the soluble sulphate ion concentration of the soils must be known in advance of construction. The choice of an analytical procedure for measuring the water soluble sulphate concentration of soils depends on such factors as the reason for making the measurements, the number of samples to be handled, the cost, and the time and effort available for doing the work.Water soluble sulphate concentrations are generally highly variable, therefore thorough sampling is necessary throughout the entire depth as well as at several locations within the construction site. It would be desirable if in addition, the procedure could be used under field conditions. |
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