Mineralizer input temperature as a factor in obtaining white clinker with a high iron oxide content

The present work is devoted to the influence of a new way of input of mineralizer 2C2S - CaF2 on whiteness of cement at different concentrations of iron oxide in the clinker. It was established that the optimum temperature interval for the introduction of the mineralize...

Structural and rheological properties of cement powder

The structural and rheological properties of cement powder significantly affect the duration of work and labor costs in the course of transportation and ship-ment of cement. This makes the task of searching for the mechanisms of controlling such properties urgent. The a...

Activation of blast furnace slag by high-calcium fly ashes

High calcium fly ash generated at pulverized solid fuel combustion at thermal power plants in combination with sodium carbonate is an effective dry activator for hardening cementless mortar mixtures based on ground granulated blast furnace slag (GGBFS). The inte...

Sanitizing dry mixtures: material requirements and specifics of selecting the composition

The article deals with the mechanism of preventing salt corrosion of masonry by using sanitizing plasters. The results of the research of the influence of porous fillers of different nature (perlite and foam glass) on the efficiency of protective com-positions m...

Variability in cement properties – influence on bleeding of cement paste

The aim of this study is to find relation between cement properties and tendency of cement paste (concrete) to bleeding. We tested 19 cement samples collected from different batches. On cements were tested granulometry, specific surface, strengths, alkali conte...

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