Issue №1, 2017
Improving the quality of fuels derived from wastes
European experience in using fuel obtained from recycled waste (refuse-derived fuel, RDF) in the cement industry is described| Author: J. Ratmann |
| Section: Waste utilization |
| Keywords: refuse-derived fuel, automatic sorting, municipal solid waste |
Cements for marine environments
This paper presents the deterioration mechanisms of concrete structures within marine environments and it addresses the most appropriate cements for seawater constructions among the cements included in the European standard EN 197-1| Author: C. Bartolome, M.A. Sanjuan |
| Section: Concrete |
| Keywords: Seawater concrete, marine environment, sulphate resistant cement, calcium aluminates, concrete service life |
Recycling the polypropylene sack production waste
Russian packaging producer Kazanskiy Zavod Sovremennoy Upakovki (KZSU) ensures low-waste cement sack production by recycling and reusing the sack production waste| Author: S. Eder |
| Section: Waste utilization |
| Keywords: plastics recycling, sack production waste, cement sack production, waste reduction, cost reduction |
The bale opener in the cement industry
The experience of using a bale opener by ReTec Miljø ApS (Denmark) for opening bales of packed wastederived fuel at the Cemex Latvia plant in Broceni, Latvia, is described| Author: P. Cederberg |
| Section: Waste utilization |
| Keywords: bail-opener, RDF, SRF, biomass |
Ukrainian cement industry. Results of operations in January 2016
In January 2017 339.9 kt of cement and 475.5 kt of clinker were produced by enterprizes – members of Ukrcement Association, or, respectively, 35.5% and 24.1% more than in January 2016.| Section: Ukrainian pages |
| Keywords: cement and clinker production in Ukraine, cement sales, cement consumption by regions of Ukraine |
Use of carbon dioxide as an accelerating additive in concrete
Environmental concerns have prompted research into the use of captured carbon dioxide as a feedstock in the production of concrete. Industrial trials have examined the use of CO2 to produce ready-mix concrete. A gas injection system provided CO2 into a ready-mix truck d...| Author: S. Monkman, M. MacDonald, D. Hooton, M. Thomas |
| Section: Concrete |
| Keywords: carbon dioxide, ready mixed concrete, sustainability, upcycling |
The influence of particle-size distribution curve of sand on porosity and frost resistance of concrete
The results of studies of porosity and frost resistance of concrete made with CEM I 32,5 R and CEM III/A 32,5 N cements are published| Author: C. Kerschl, W. Brameshuber |
| Section: Concrete |
| Keywords: concrete, porosity, freeze-thaw resistance, particle-size distribution curve |
Expansion of gypsum stone in the presence of a polycarboxylate hyper plasticizer
Expansion of gypsum rock caused by Melflux 6681F, polycarboxylate hyper plasticizer of the latest generation, was investigated| Author: A.S. Panfilov, I.N. Medvedeva, A.S. Brykov, M.E. Voronkov |
| Section: Science and production |
| Keywords: gypsum, polycarboxylate plasticizer, expansion, crystallization pressure |
On the chemistry of thaumasite formation
The expansion behavior of cement mortars with 0-25% limestone content is studied in water and magnesium sulfate solution for 2.5 years at room temperature and 7 oC| Author: H.Y. Ghorab, M. Rizk, D. Herfort, Y.A. Osman |
| Section: Science and production |
| Keywords: thaumasite, expansion, cement mortars, limestone, infrared spectroscopy |
Mechanically activated cements with mineral additives based on raw materials of the Kola Peninsula
The results of studies of binding properties of mechanically activated compositions based on Portland cement (PC) and mineral additives are presented| Author: A.M. Kalinkin, B.I. Gurevich, E.V. Kalinkina, V.V. Tyukavkina |
| Section: Science and production |
| Keywords: blended cements, mineral additives, mechanical activation |