Waste Diatomaceous Earth as Cementitious Binder Constituent

Theodor Staněk

doi:10.4028/www.scientific.net/MSF.865.1

Paper Titles

Preface, Committees

Waste Diatomaceous Earth as Cementitious Binder Constituent
p.1

Using of Untreated Carbon Nanotubes in Cement Compositions
p.6

Elimination of Negative Influence of Fluidized Bed Combustion Fly Ash on Viscosity of Cement Mix
p.12

Rheological and Calorimetric Characterization of the Role of CaCl₂ on Portland Cement Early Hydration
p.17

Study of the Effect of Diatomite as a Partial Replacement of Cement in Cement Pastes
p.22

Technological Properties Testing of Blended Portland Cements with Fluidized Filter Ash
p.27

Effect of Used Binders in Lightweight Plaster Mixtures on their Thermal Insulation Properties
p.32

Effect of Curing Regime on the Properties of Alkali-Activated Slag/Limestone Mortar Subjected to High Temperatures
p.37

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Waste Diatomaceous Earth as Cementitious Binder Constituent

Abstract:

Paper is aimed at study of preparation possibilities of cementitious binders with waste diatomaceous earth. In the first step, the influence of ground diatomaceous earth on properties of cement mixture was studied. In the next step, diatomaceous earth was calcinated and, lastly, the influence of replacing FGD-gypsum with anhydrite II as a setting controller in the mixture containing calcined diatomaceous earth was monitored. Technological properties of the prepared mixtures were measured and compared with cement standard. For studying the influence of phase composition and microstructure of cements hardened by both untreated and calcinated diatomaceous earth, hardened cements were tested by DTA and their porosities were measured. The results show that it is possible to prepare binder containing calcinated diatomaceous earth which has slightly lower early strengths but higher long-term strengths and lower hydration heat development.