Globally the ready mix concrete production has grown significantly in the last five decades. The annual turnover of the industry is expected to reach about 800 billion US dollars in 2021 and is likely to grow at about 8% up to2028. The production technology offers m...
The article considers the results of the industry of dry mixes in 2021. The Russian market of modified mixtures for the first time since 2013 showed a double-digit growth (+11%), consumption approached 12 Mt. Even more rapid growth was demonstrated by mi...
Turkish Cement Producers Association (TÜRKÇİMENTO) is a non-governmental organization, registered in 1957 and given the status of a public organization. It represents 66 cement plants in the country, including 51 complete cycle plants and 15 grinding plants, whi...
The article describes Sinoma's experience in mod-ernizing production at the Martes Tolosane cement plant in France, owned by the Holcim group. In spite of all the difficulties, such as cramped space, con-struction in the conditions of the running production, limitat...
A brief analysis of grinding equipment used for grind-ing materials in the cement industry is presented. It is expected that in the coming years ball drum mills will remain the main grinding unit in large-tonnage pro-duction. One of the main directions of improvement in...
| Author: V.S. Bogdanov, S.I. Antsiferov, D.V. Bogdanov, E.A. Sychev |
| Section: Equipment and technology |
| Keywords: ball drum mill, grinding bodies, ball, grinding charge, separation angle, angle of fall, impact velocity, kinetic and potential energy, grinding |
The purpose of the research was to determine the effect of limestone as a mineral additive in cement on frost resistance of hardened cement. The structure and properties of materials have been studied us-ing methods of X-ray phase and differential thermal analysis, scan...
Concrete road pavements have an increased dura-bility. In Russia and many other countries the share of roads with such pavements in the total length of the highways under construction is increasing. The main disadvantage of concrete pavements is limited maintainability....
Portland cement and blast furnace slag compositions for cementing medium and low activity liquid radioactive waste concentrates in large volume receptacles have been investigated. The possibility of cementation of both high-salt solutions and concentrated suspensions is...
It has been established that granulated blast-furnace slag improves the structure of the problem cohesive soils increasing their density and strength. It was shown that the use of fine ground granulated blast furnace slag (GGBFS) in combination with Portland cem...
| Author: R.R. Adigamov, E.V. Mitukova, V.Y. Solovieva, S.O. Gunin |
| Section: Waste utilization |
| Keywords: soil, reinforcement, filtration coefficient, maximum density, strength, frost resistance, granulated blast furnace slag, finely ground blast furnace slag, Рortland cement, chemical additive |
In order to reduce the carbon factor a lot of mineral additives are used in cements, which often leads to a sharp fall in its strength. Active (granulated blast furnace slag, pozzolans, ash) or inert (limestone) minerals are usually used as additives.
Th...
