NDLI: Effect of substitution of blast-furnace slag by fired drinking water sludge on the properties of pozzolanic cement pastes

Content Provider	Springer Nature Link
Author	El Didamony, Hamdy Mohammed, Mona S. Osman, Randa M.
Copyright Year	2015
Abstract	The effect of fired drinking water sludge (FDWS) as a mineral admixture on the physico-mechanical properties and the fire resistance of pozzolanic cement pastes has been investigated. Five blends of ordinary Portland cement, blast-furnace slag (GBFS) and FDWS were prepared. The Portland cement was fixed to 70 mass%, while granulated slag was replaced by 0, 3, 6, 9 and 12 mass% of fired sludge. The phase composition was identified using X-ray diffraction, thermal gravimetric analysis and differential scanning calorimetry. The results have shown an increase in the required water of standard consistency and elongation of setting times with increasing the fired sludge content. The bulk density has decreased with increasing the sludge content, while the compressive strength was enhanced at later ages for 3 and 6 mass% FDWS substitution. In addition, the specimen that contains 9 mass% FDWS gave the best firing resistance at high temperature, whereas Portland cement paste has been completely deteriorated at 800 °C.
Starting Page	81
Ending Page	88
Page Count	8
File Format	PDF
ISSN	13886150
Journal	Journal of thermal analysis
Volume Number	122
Issue Number	1
e-ISSN	15882926
Language	English
Publisher	Springer Netherlands
Publisher Date	2015-05-16
Publisher Place	Dordrecht
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Mechanical properties Fire resistance Sludge Slag Physical Chemistry Analytical Chemistry Polymer Sciences Inorganic Chemistry Measurement Science and Instrumentation
Content Type	Text
Resource Type	Article
Subject	Physical and Theoretical Chemistry Condensed Matter Physics

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