Accuracy and precision of an X-ray diffraction method for analysing portland cements

• Published in: Cement and concrete research 1982-01, Vol.12 (4), p.437-446
• Main Author: Aldridge, L.P.
• Format: Article
• Language: English
• ISSN: 0008-8846; 1873-3948
• DOI: 10.1016/0008-8846(82)90058-8

An X-ray diffraction method for analysing portland cement is described and the accuracy and precision determined. Over 200 cements have been analysed using a method which is a modification of that developed by Berger et al (Highway Research Board Special Report 90 234–253 1964). The accuracy of the compound composition determined by this method is similat to that obtained by the Bogue method. Because of the speed of analysis (17 samples can be analysed in a working day) it is suitable for routine analysis. He whakamarama he whakatakotoranga mohiotanga, naku i ata rapu, mo tetahi tu tikanga whakatiaho, whakakorakora i nga hihi o te X-ray hei whaaki i te iho ó nga raima o Portland. I hipa atu i te 200 nga kohikohinga raima i ata whakamatau -tauria e ahau i raro i taku whakahounga i te kaupapa a Berger et al (tirohia te Ripoata Whai Mana 90 234–253 9 a Te Poari Mo Nga Huarahi) Ko taku kaupapa whaaki i te tika pu o te ahua o te iho o te raima e taurite ana ki ta Bogue Kaupapa. I te tere o tenei kaupapa mo te whakamatautau (17nga kohikohinga raima ka taea te whakamatautau i ia ra, i ia ra) e tika ana kia tautokona taua kaupapa mo te nuinga o nga whakamatautauranga i te raima.