The paper noted that at the current state of production assets of the Russian industries the competitiveness of the economy on foreign markets will decrease, macroeconomic risks will increase, and the ecological situation will worsen. Application of the principle of sta...
The article provides the information related to the cement production and consumption in the Republic of Kazakhstan, to the cement plants of the country; it describes problems facing the cement industry is and prospects of its development.
Quality control of cement has a long tradition in Europe and worldwide. Already in the 19th century the first standard for cement was published. Since those early days many further developments have taken place. The Construction Products Directive and the Construction P...
The article describes the project of construction of new dry process line at the Lithuanian cement plant Akmenes Cementas. Equipment characteristics and the production process are concerned. The plant’s operating performance and the range of its products are given
Binders containing conventional additive-free Portland cement, calcined shale, ground granulated blast furnace slag and limestone were examined using experimental methods and thermodynamic modeling. Comparison of bicomponent Portland cement (with limestone) and ...
In this paper, a comparative study of the efficacy of aluminum and iron (III) sulfates as inhibitors of alkali-silica reactions (ASR) is described, in accordance with the accelerated method, GOST 8269.0, and their effect on sulfate resistance of cement/s...
Differences in mechanical processes taking place in various grinding systems can influence both the particulate composition of the obtained products and the geometric shape and nature of the surface of individual particles. The article examines the impact of the grindin...
The issue of cement plastification in alkaline environment determined by the presence of alkali metal compounds, and the ways of its solution, was analyzed. Organic compounds were classified by their efficacy as plasticizers of alkali cements.
| Author: P.V. Krivenko, R.F. Runova, I.I. Rudenko |
| Section: Science and production |
| Keywords: alkaline cement, plastification, chemical admixture, surfactant, alkaline cement, granulated blast furnace slag, cement paste, plastic strength, compatibility |
The article describes the improved design of a screw classifier. The essence of the problem and the importance of raw slurry classification are demonstrated. The rational design and engineering parameters for the classifier are given. Analytical expressions for calculat...
| Author: V.S. Bogdanov, D.V. Bogdanov, N.E. Bogdanov |
| Section: Science and production |
| Keywords: classifier, sewage sludge, ball raw mill, milling, regrinding, solid sludge constituent, density, particle diameter, hydraulic resistance |
In the first 9 months of 2015 6,685 kt of cement and 4,403 kt of clinker were produced, or, respectively 4.2% and 4.1% less than in the same period for 2014. In September 2015 there were produced 0.5% of cement and 14.8% of clinker more than in September...
