Chemical Composition and Hydraulic Properties of Incinerated Wastepaper Sludge

: pp. 538 - 544
Lviv Polytechnic National University, Department of highways and bridges
Lviv Polytechnic National University
Lviv Polytechnic National University, Department of highways and bridges
PJSC “Kyiv Cardboard and Paper Mill”
Lviv Polytechnic National University, department of Highways and Bridges
Lviv Polytechnic National University, Department of highways and bridges

The hydraulic properties of ash from incinerated wastepaper sludge were investigated. It is shown that the phase composition of wastepaper sludge after heat treatment is similar to the classical fired carbonate-clay mixes. The necessity of using the combination of retarding admixtures with different action mechanism is shown. The strength in the initial hardening period is ensured by the formation of AFm-phases and ettringite, and subsequently by increasing the role of CSH.

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