The equipment for transportation of bulk materials developed and produced by BEUMER group of companies (Germany) is discussed. Their belt conveyors can travel long distances, negotiate steep climbs, have small radius curves, and can be individually adapted to pe...
ABB’s System 800xA Minerals Library is considered. It is a suite of unique object-oriented software control modules that makes it possible to design process control and power applications in a highly efficient and fully parameterized fashion.
The situation is reviewed with the standards for cement after Russia joined the WTO, which requires a further convergence of Russian regulatory standards with the standards of EU and other WTO member countries. The information about the ongoing work to improve the stand...
Amorphous and crystalline varieties of commercially produced aluminum hydroxide as alkali expansion inhibitors of Portland cement compositions were examined. It was found that at doses of 1—3 % of cement (by weight), the amorphous aluminum hydroxides of high...
The influence of methods of grinding on the activity of composite and slag-alkali cements on the basis of electric steel slag is established. Construction and engineering properties of impact-centrifugal ground binders are studied. The influence of a kind of stabilizati...
The water-to-cement ratio of ultra high strength concrete is extremely low; therefore the addition of high-range water reducing agent (suerplasticizer: SP) and silica fume (SF) is indispensable at mixing. This research was conducted to elucidate how a hi...
The requirements for oil-well cements according to the API 10A specification of the American Petroleum Institute for cements and materials used for well cementing, are discussed. Oil well cement of G class, HSR brand, produced by OAO Volsk-Cement (Holcim Group) ...
Waste sludge, a solid recovered from wastewater of photovoltaic-industries, composes of agglomerates of nano-particles like SiO2 and CaCO3. This sludge deflocculates in aqueous solutions into nano-particles smaller than 1000 nm. Thus, this sludge is potentially hazardou...
In 2007 OAO Mordov-Cement started production of alternative fuel from tyres, and in 2013 — from wood wastes. The paper discusses the basic equipment and technology for production of such fuel at the plant and its use in cement manufacturing.
The problems of municipal solid waste (MSW) treatment in Russia are discussed. The results of the study and suggestions from IFC (World Bank Group) on how to develop the market potential of MSW are described. Now the country recycles only 5—7 % of th...
