A Calorimetric Study of the Effect of Organic Compounds On the Initial Behaviour of Cement-Based Solidified Wastes
- 1 January 1995
- journal article
- research article
- Published by SAGE Publications in Waste Management & Research: The Journal for a Sustainable Circular Economy
- Vol. 13 (1), 21-36
- https://doi.org/10.1177/0734242x9501300104
Abstract
Seven organic compounds commonly found in toxic wastes were added to ordinary Portland cement (OPC) at varying concentrations. The influence of these organics, which display a variety of chemical characteristics, on the heat of hydration, setting, strength development and microstructure were observed. Most organics influenced early hydration by retardation or acceleration but mature samples displayed a similar phase composition to the OPC control. Microstructural observation of organic-containing OPC indicated that subtle spatial variations in the distribution of hydration phases and topographic features existed despite the absence of significant interference with normal hydration reactions.Keywords
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