Hydration of Cement Slurry in The Presence of Spent Cracking Catalyst

Barbara Pacewska , Iwona Wilińska , Maria Bukowska

Abstract

The physicochemical properties of spent fluidized bed cracking catalyst and its influence on hydration process of cement slurry were studied. The samples were cement slurries prepared with water/solid=0.5 and additions of used catalyst amounted to 0, 5, 10, 15, 20 and 25\%with resp. to the solid. After definite time they were subjected to thermogravimetric analysis (TG, DTG, DTA) and, in order to determine the progress of reaction with water, the heat of hydration was measured by means of isotherm calorimetry. The studies disclosed that the spent cracking catalyst is not merely an inactive filler in cement slurries, but it modifies the course of the hydration process. The spent catalyst is a pozzolana additive and its presence leads to a decrease of calcium hydroxide contents in the system. The spent catalyst affect on the heat of cement hydration. Small amounts additive accelerate the process of binding.
Author Barbara Pacewska (FCEMP / IC)
Barbara Pacewska,,
- The Institute of Chemistry
, Iwona Wilińska (FCEMP / IC)
Iwona Wilińska,,
- The Institute of Chemistry
, Maria Bukowska (FCEMP / ICEn)
Maria Bukowska,,
- Insitute of Civil Engineering
Journal seriesJournal of Thermal Analysis and Calorimetry, ISSN 1388-6150, 1572-8943
Issue year2000
Vol60
No1
Pages71-78
Keywords in Englishcement slurry, hydration of cement, Inorganic Chemistry, Measurement Science, Instrumentation, Physical Chemistry, Polymer Sciences, pozzolana additive
DOIDOI:10.1023/A:1010120518062
URL http://link.springer.com/article/10.1023/A%3A1010120518062
Score (nominal)0
Score sourcejournalList
Publication indicators Scopus Citations = 36; WoS Citations = 31; GS Citations = 37.0
Citation count*37 (2015-03-12)
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