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Loss on ignition is calculated by heating up a cement sample to 900 – 1000°C (1650 – 1830°F) until a constant weight is obtained. The weight loss of the sample due to heating is then determined. A high loss on ignition can indicate prehydration and carbonation, which may be caused by improper and prolonged storage or adulteration during transport or transfer (PCA, 1988[1]).
Standard Test Methods
- AASHTO T 105 and ASTM C 114: Chemical Analysis of Hydraulic Cement
Footnotes (↵ returns to text)
- Portland Cement Association (PCA). (1988). Design and Control of Concrete Mixtures. Portland Cement Association. Skokie, IL.↵
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