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Quantification of fly ash in cements and mortars by means of gamma spectrometry

✍ Scribed by J.S. Chinchón; A. López-Soler; A.Sánchez Reyes; M. Ginjaume; E. Vázquez; A. Yagüe

Publisher
Elsevier Science
Year
1989
Tongue
English
Weight
148 KB
Volume
19
Category
Article
ISSN
0008-8846

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✦ Synopsis

A method is proposed here to quantify fly ash in cements and mortars using high resolutlon gamma spectrometry assuming provided the source of the fly ash is known. The method was tested for nine samples of Portland 450 cement and fly ash from coal thermal power stations in Andorra (Teruel), Cercs (Barcelona) and Alcudia (Mallorca) which correspond to the low, high and very high calcium content types, respectively. In addition, two samples of fly ash from Cercs, standardized sand and Portland 450 cement were also analysed. The specific activity in Bq/Kg of two isotopes of the decay series of ~38U (2~Pb and ~Bi), another of the decay series of 23ZTh (2~Ac), in addition to #OK was used for the quantification.

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