SYMPOSIA PAPER Published: 01 October 2012
STP104437

Developing a New Test Method for Determining Free Moisture in Hydrated Lime by Thermogravimetric Analysis (Moisture Balance)

Source

Experimental studies were conducted in order to establish a technique for determining the free moisture content of hydrated lime using a thermogravimetric balance (moisture meter) method. The first step was to develop a calibration curve for different moisture levels using sodium tartrate dihydrate, first with dried limestone and then with calibrated weights. Sodium tartrate dihydrate has a moisture content of 15.65 ± 0.05 wt. % at 120°C. Testing was completed at 120°C, 150°C, and 180°C in order to determine whether there was a significant difference in results at the different temperatures. There was a 0.2 % discrepancy in the value of the free moisture between the lowest and the highest temperature, providing a good base from which to recommend further development of the test method.

Author Information

Thomson, Margaret, L.
Lhoist, Fort Worth, TX, US
Vernaci, Joe
Lhoist, Henderson, NV, US
Houghton, Melanie
Carmeuse, Pittsburgh, PA, US
Price: $25.00
Contact Sales
Related
Reprints and Permissions
Reprints and copyright permissions can be requested through the
Copyright Clearance Center
Details
Developed by Committee: C07
Pages: 209–220
DOI: 10.1520/STP104437
ISBN-EB: 978-0-8031-7559-4
ISBN-13: 978-0-8031-7543-3