Further insights into calcium sulfoaluminate cement expansion

There is still an ongoing debate on the mechanisms of expansion of calcium sulfoaluminate (CSA) cements, which can be either favorable e.g. in shrinkage compensating construction materials or deleterious in cases of excessive expansion. In order to expand on previous st...

Modification of cement systems with nanoparticle-based additives. History of application, current state, prospects

Nanoparticles in mortar and concrete mixtures have a positive effect on the physical and mechanical characteristics of mortars and concretes - strength, modulus of elasticity, density, impermeability, resistance to corrosive factors - provided they are thoroughly disper...

Cement industry in Kazakhstan

In 2020 10.8 Mt of cement were produced in Kazakhstan. Cement consumption amounted to 9.5 Mt. 2.1 Mt of cement were exported from Kazakhstan, and 0.7 Mt were imported to the country. More than 80 % of clinker capacity is from dry technology. In the next five years,...

Cement manufacturing at OAO Krasnoselskstroymaterialy

OAO Krasnoselskstroymaterialy, part of the Belarusian Cement Company, produces cement by dry and wet methods. The company produces a wide range of cements. Modern testing and analytical equipment is used to ensure that product quality is always at a high level. Advanced...

Modern materials and technologies of lining application for thermal units

The article contains a list and description of the materials produced by OOO Seven Refractories, designed for shotcreting the lining of various parts of cement kilns.

High efficiency separators in the cement industry

The international Intercem group of companies headquartered in Switzerland, with production facilities in Germany and Switzerland, provides a wide range of services to cement producers. However, the focus of Intercem's work has increasingly shifted towards the plann...

Procedure for preparing documents at the preliminary stage of the investment project

The article highlights the issues of preparing documentation for the preliminary stage of an investment project. It identifies the issues that are addressed in the preliminary proposals (PP), and the areas of further PP use. The stages of the preliminary assessm...

Optimization of energy efficiency of the lining for ball tube mills

The state and trends of development of technology and techniques for material grinding in ball tube mills are considered. An opportunity to adjust the fineness of grinding and the specific material consumption by changing the transverse and longitudinal profile of the l...

Individual influence of Na2O and K2O on the properties of Portland cement clinker

In the production of Portland cement clinker the raw mix always contains sodium and potassium oxides, which can accumulate in the calcined material because of their chemical properties, and therefore their amount may increase in the rotary kiln. The Na2O and K2O in the ...

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