Dyckerhoff AG

Wiesbaden, Germany

Dyckerhoff AG

Wiesbaden, Germany
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Vertical roller mills are the mills traditionally used for processing granulated blastfurnace slag and for grinding composite cements. From the energy aspect they are superior to grinding plant circuits with ball mills, even when combined w i t h high-pressure roller presses. For drying and grinding it is state of the art to equip these types of grinding plant w i t h vapour recirculation and use either exhaust air from the burning process, clinker cooler exhaust air or preheater exhaust gas and/or an in-line burner fuelled with fuel oil or coal as the heat source [1], The residence time in the vertical roller mill - considered as a closed system consisting of comminution zone (grinding rollers, grinding table, dam ring) and dynamic classifier - is very much shorter as it is w i t h a ball mill operating in closed circuit w i t h a classifier, so failures in the material transport or in stabilization of the material bed have a direct effect on the availability of the plant. This is because frequent re-starting procedures increase the specific power consumption and shift the grinding plant away from the energy optimum. Operators of these plants are therefore particularly interested in operating the process very close to the energy optimum. Numerous optimization measures have ensured that the vertical roller mills installed in the Buzzi Unicem/Dyckerhoff Group have a high level of availability. This article describes the results when grinding cement and granulated blastfurnace slag and discusses t h em with regard to factors that affect the engineering process. When using grinding aids and/or "quality improvers" it is possible to control product properties selectively, improve the classifying process and increase the plant output. This article focuses on way the grinding aids affect the process parameters and the specific power consumption. There are also observations on the alteration in particle morphology that occur when the mill or the grinding process is changed.


News Article | November 21, 2016
Site: www.newsmaker.com.au

GET SAMPLE REPORT @ Oil Well Cement Sales Global Market Research Report 2016 Notes: Sales, means the sales volume of Oil Well Cement Revenue, means the sales value of Oil Well Cement This report studies sales (consumption) of Oil Well Cement in Global market, especially in United States, China, Europe, Japan, focuses on top players in these regions/countries, with sales, price, revenue and market share for each player in these regions, covering Lafarge Holcim Dyckerhoff AG Heidelberg Cement Italcementi Cemex Kerman Cement Trinidad Cement Oman Cement GEZHOUBA GROUP CEMENT Tianshan Cement QSCC QLSSN CONCH YATAI Group Jidong Cement Ningxia Building Materials Taiyuan Lionhead Cement Dalian Cement Market Segment by Regions, this report splits Global into several key Regions, with sales (consumption), revenue, market share and growth rate of Oil Well Cement in these regions, from 2011 to 2021 (forecast), like United States China Europe Japan Split by product Types, with sales, revenue, price and gross margin, market share and growth rate of each type, can be divided into Type I Type II Type III Split by applications, this report focuses on sales, market share and growth rate of Oil Well Cement in each application, can be divided into Application 1 Application 2 Application 3 Global Oil Well Cement Sales Market Report 2016 1 Oil Well Cement Overview 1.1 Product Overview and Scope of Oil Well Cement 1.2 Classification of Oil Well Cement 1.2.1 Type I 1.2.2 Type II 1.2.3 Type III 1.3 Application of Oil Well Cement 1.3.1 Application 1 1.3.2 Application 2 1.3.3 Application 3 1.4 Oil Well Cement Market by Regions 1.4.1 United States Status and Prospect (2011-2021) 1.4.2 China Status and Prospect (2011-2021) 1.4.3 Europe Status and Prospect (2011-2021) 1.4.4 Japan Status and Prospect (2011-2021) 1.5 Global Market Size (Value and Volume) of Oil Well Cement (2011-2021) 1.5.1 Global Oil Well Cement Sales and Growth Rate (2011-2021) 1.5.2 Global Oil Well Cement Revenue and Growth Rate (2011-2021) 2 Global Oil Well Cement Competition by Manufacturers, Type and Application 2.1 Global Oil Well Cement Market Competition by Manufacturers 2.1.1 Global Oil Well Cement Sales and Market Share of Key Manufacturers (2011-2016) 2.1.2 Global Oil Well Cement Revenue and Share by Manufacturers (2011-2016) 2.2 Global Oil Well Cement (Volume and Value) by Type 2.2.1 Global Oil Well Cement Sales and Market Share by Type (2011-2016) 2.2.2 Global Oil Well Cement Revenue and Market Share by Type (2011-2016) 2.3 Global Oil Well Cement (Volume and Value) by Regions 2.3.1 Global Oil Well Cement Sales and Market Share by Regions (2011-2016) 2.3.2 Global Oil Well Cement Revenue and Market Share by Regions (2011-2016) 2.4 Global Oil Well Cement (Volume) by Application Figure Picture of Oil Well Cement Table Classification of Oil Well Cement Figure Global Sales Market Share of Oil Well Cement by Type in 2015 Figure Type I Picture Figure Type II Picture Table Applications of Oil Well Cement Figure Global Sales Market Share of Oil Well Cement by Application in 2015 Figure Application 1 Examples Figure Application 2 Examples Figure United States Oil Well Cement Revenue and Growth Rate (2011-2021) Figure China Oil Well Cement Revenue and Growth Rate (2011-2021) Figure Europe Oil Well Cement Revenue and Growth Rate (2011-2021) Figure Japan Oil Well Cement Revenue and Growth Rate (2011-2021) Figure Global Oil Well Cement Sales and Growth Rate (2011-2021) Figure Global Oil Well Cement Revenue and Growth Rate (2011-2021) Table Global Oil Well Cement Sales of Key Manufacturers (2011-2016) Table Global Oil Well Cement Sales Share by Manufacturers (2011-2016) Figure 2015 Oil Well Cement Sales Share by Manufacturers Figure 2016 Oil Well Cement Sales Share by Manufacturers Table Global Oil Well Cement Revenue by Manufacturers (2011-2016) Table Global Oil Well Cement Revenue Share by Manufacturers (2011-2016) Table 2015 Global Oil Well Cement Revenue Share by Manufacturers Table 2016 Global Oil Well Cement Revenue Share by Manufacturers Table Global Oil Well Cement Sales and Market Share by Type (2011-2016) Table Global Oil Well Cement Sales Share by Type (2011-2016) Figure Sales Market Share of Oil Well Cement by Type (2011-2016) Figure Global Oil Well Cement Sales Growth Rate by Type (2011-2016) Table Global Oil Well Cement Revenue and Market Share by Type (2011-2016) Table Global Oil Well Cement Revenue Share by Type (2011-2016) Figure Revenue Market Share of Oil Well Cement by Type (2011-2016) Figure Global Oil Well Cement Revenue Growth Rate by Type (2011-2016) Table Global Oil Well Cement Sales and Market Share by Regions (2011-2016) Table Global Oil Well Cement Sales Share by Regions (2011-2016) Figure Sales Market Share of Oil Well Cement by Regions (2011-2016) Figure Global Oil Well Cement Sales Growth Rate by Regions (2011-2016) Table Global Oil Well Cement Revenue and Market Share by Regions (2011-2016) Table Global Oil Well Cement Revenue Share by Regions (2011-2016) Figure Revenue Market Share of Oil Well Cement by Regions (2011-2016) Figure Global Oil Well Cement Revenue Growth Rate by Regions (2011-2016) FOR ANY QUERY, REACH US @    Oil Well Cement Sales Global Market Research Report 2016


Palm S.,VDZ GGmbH | Proske T.,TU Darmstadt | Rezvani M.,TU Darmstadt | Hainer S.,Dyckerhoff GmbH | And 2 more authors.
Construction and Building Materials | Year: 2016

This paper deals with the performance of concretes made of cements containing high levels of limestone between 35 and 65 wt.-%. The Article mainly focuses on cements with 50 wt.-% limestone. Several experiments regarding the fresh and hardened concrete properties were carried out. Chloride penetration, freeze-thaw resistance, carbonation resistance and long-term deformation behavior were analyzed. The results show that concretes with cements containing up to 50 wt.-% limestone and a water/cement-ratio of 0.35 may have sufficient properties for practical application if a stringent supervision is ensured. Furthermore, these concretes can exhibit mechanical and durability properties comparable to concretes according to EN 206-1 and the German national application document DIN 1045-2 made of EN 197-1 cements. Besides, the results revealed that these properties depend highly on the limestone characteristics. Life cycle assessment analysis revealed that a cut-off up to 25% in global warming potential of concretes made with such cements is achievable in comparison with German average cement with the same performance. © 2016 Elsevier Ltd. All rights reserved.


Grant
Agency: European Commission | Branch: H2020 | Program: RIA | Phase: NMP-19-2015 | Award Amount: 7.97M | Year: 2016

The main goal of the LORCENIS project is to develop long reinforced concrete for energy infrastructures with lifetime extended up to a 100% under extreme operating conditions. The concept is based on an optimal combination of novel technologies involving customized methodologies for cost-efficient operation. 4 scenarios of severe operating conditions are considered: 1. Concrete infrastructure in deep sea, arctic and subarctic zones: Offshore windmills, gravity based structures, bridge piles and harbours 2. Concrete and mortar under mechanical fatigue in offshore windmills and sea structures 3. Concrete structures in concentrated solar power plants exposed to high temperature thermal fatigue 4. Concrete cooling towers subjected to acid attack The goal will be realized through the development of multifunctional strategies integrated in concrete formulations and advanced stable bulk concretes from optimized binder technologies. A multi-scale show case will be realized towards service-life prediction of reinforced concretes in extreme environments to link several model approaches and launch innovation for new software tools. The durability of sustainable advanced reinforced concrete structures developed will be proven and validated within LORCENIS under severe operating conditions based on the TRL scale, starting from a proof of concept (TRL 3) to technology validation (TRL 5). LORCENIS is a well-balanced consortium of multidisciplinary experts from 9 universities and research institutes and 7 industries whose 2 are SMEs from 8 countries who will contribute to training by exchange of personnel and joint actions with other European projects and increase the competitiveness and sustainability of European industry by bringing innovative materials and new methods closer to the marked and permitting the establishment of energy infrastructures in areas with harsh climate and environmental conditions at acceptable costs.


News Article | November 28, 2016
Site: www.newsmaker.com.au

MarketStudyReport.com adds “Global Oil Well Cemen Market Research Report 2016” new report to its research database. The report spread across 112 pages with table and figures in it. This report studies Oil Well Cemen in Global market, especially in North America, Europe, China, Japan, Southeast Asia and India, focuses on top manufacturers in global market, with capacity, production, price, revenue and market share for each manufacturer, covering Browse full table of contents and data tables at https://www.marketstudyreport.com/reports/global-oil-well-cemen-market-research-report-2016/ Market Segment by Regions, this report splits Global into several key Regions, with production, consumption, revenue, market share and growth rate of Oil Well Cemen in these regions, from 2011 to 2021 (forecast), like Split by product type, with production, revenue, price, market share and growth rate of each type, can be divided into Split by application, this report focuses on consumption, market share and growth rate of Oil Well Cemen in each application, can be divided into 7 Global Oil Well Cemen Manufacturers Profiles/Analysis 7.1 Lafarge 7.1.1 Company Basic Information, Manufacturing Base and Its Competitors 7.1.2 Oil Well Cemen Product Type, Application and Specification 7.1.2.1 Type I 7.1.2.2 Type II 7.1.3 Lafarge Oil Well Cemen Capacity, Production, Revenue, Price and Gross Margin (2015 and 2016) 7.1.4 Main Business/Business Overview 7.2 Holcim 7.2.1 Company Basic Information, Manufacturing Base and Its Competitors 7.2.2 Oil Well Cemen Product Type, Application and Specification 7.2.2.1 Type I 7.2.2.2 Type II 7.2.3 Holcim Oil Well Cemen Capacity, Production, Revenue, Price and Gross Margin (2015 and 2016) 7.2.4 Main Business/Business Overview 7.3 Dyckerhoff AG 7.3.1 Company Basic Information, Manufacturing Base and Its Competitors 7.3.2 Oil Well Cemen Product Type, Application and Specification 7.3.2.1 Type I 7.3.2.2 Type II 7.3.3 Dyckerhoff AG Oil Well Cemen Capacity, Production, Revenue, Price and Gross Margin (2015 and 2016) 7.3.4 Main Business/Business Overview 7.4 Heidelberg Cement 7.4.1 Company Basic Information, Manufacturing Base and Its Competitors 7.4.2 Oil Well Cemen Product Type, Application and Specification 7.4.2.1 Type I 7.4.2.2 Type II 7.4.3 Heidelberg Cement Oil Well Cemen Capacity, Production, Revenue, Price and Gross Margin (2015 and 2016) 7.4.4 Main Business/Business Overview 7.5 Italcementi 7.5.1 Company Basic Information, Manufacturing Base and Its Competitors 7.5.2 Oil Well Cemen Product Type, Application and Specification 7.5.2.1 Type I 7.5.2.2 Type II 7.5.3 Italcementi Oil Well Cemen Capacity, Production, Revenue, Price and Gross Margin (2015 and 2016) 7.5.4 Main Business/Business Overview 7.6 Cemex 7.6.1 Company Basic Information, Manufacturing Base and Its Competitors 7.6.2 Oil Well Cemen Product Type, Application and Specification 7.6.2.1 Type I 7.6.2.2 Type II 7.6.3 Cemex Oil Well Cemen Capacity, Production, Revenue, Price and Gross Margin (2015 and 2016) 7.6.4 Main Business/Business Overview To receive personalized assistance write to us @ [email protected] with the report title in the subject line along with your questions or call us at +1 866-764-2150


Grant
Agency: European Commission | Branch: FP7 | Program: CP-IP | Phase: EeB.NMP.2013-2 | Award Amount: 6.55M | Year: 2013

H-House is aiming at the development of a number of building components for modern society where awareness for environmental aspects and living comfort are not compromised but complementing each other. The concept of H-House aims at components for the building envelope and components for the interior applied to both new buildings and for renovation. The purpose of an adequate building envelope is protection against moisture ingress, heat loss in winter, excessive heating in summer and noise. Components for the interior should be able to buffer heat and humidity peaks and prevent pollutants and noise. Solutions for both components for building envelope and components for the interior have to be durable, energy-efficient and affordable. Therefore, H-House will propose innovative sustainable faade and partition walls based on earthen materials, optimised cementitious materials with modified surfaces and wooden/cellulose materials. An innovative modification of the listed materials with additions of energy-saving and air purifying aerogel granulates will create optimal conditions for living. The concept of H-House covers chemical and physical activity of the developed building materials, their embodied energy, suitability in different environments, durability, cost-efficiency and long-term improvement of energy efficiency of buildings. The complementary consortium has a strong industrial dominance (9 partners) and 3 research institutes.


Hornung D.,Dyckerhoff AG | Strunge J.,Dyckerhoff AG
Betonwerk und Fertigteil-Technik/Concrete Plant and Precast Technology | Year: 2011

The implementation of the Kyoto Protocol and its follow-up instruments has driven the cement industry to consider to reduce the C0 2 emissions generated during cement production by manufacturing cements with a lower Portland cement clinker ratio. Blast-furnace slag, limestone dust and coal fly ash have been successfully used as composite constituents of cement and concrete. Cements combining the use of blast-furnace slag and limestone have become a generally accepted option in all market segments. The cement production process conditions need to be modified with the aim of achieving a more uniform distribution of fly ash particles. Fly ash is fed into the rotary mill through an air separator where the air separator conveys the coarse particles to a mill where they are subjected to an additional grinding process. Fly ash particles that are fine enough to be used in the cement are directly added to the finished Portland cement clinker.


Strunge J.,Dyckerhoff AG | Deuse T.,Dyckerhoff AG | Parker F.,Dyckerhoff AG
Betonwerk und Fertigteil-Technik/Concrete Plant and Precast Technology | Year: 2013

The OLAF project funded by the Federal Ministry of Education and Research has developed a high-performance concrete produced with a newly developed special binder, Nanodur Compound 5941, containing less than 50% of Portland cement clinker. The new concrete provides relatively high tensile bending strengths, which are more important than compressive strength for slender structural components. The latter can achieve particularly high compressive strengths by fiber addition and/or heat curing. The Nanodur Compound 5941 binder used for the Nanodur concrete already contains a CEM II/B-S 52,5 R cement. The concretes produced with the binder compound were tested during cyclic storage in a climate chamber at the University of Weimar. No damaging reactions were found, which also applied to critical aggregates such as granodiorite.


This year Dyckerhoff celebrates the company's one hundred and fiftieth anniversary. It was founded during the period of increased German industrialization in the second half of the 19th century by Wilhelm Gustav Dyckerhoff with his two sons Gustav and Rudolf. The company philosophy according to which priority is given to quality before price has continued to this day. The company's history reflects the advances in process technology in the fields of cement production and cement types over its years in existence. Raw material extraction after the blasting, for example, started with manual loading of horse-and-carts and was progressively replaced by powerful excavators and mechanical means of transport. The burning technology started with the semi-wet process and ring kilns and developed into the present dry process and the use of secondary fuels. The types of cement have grown from the grey Portland cements to white cements and high performance cements using Nanodur technology. In all these development stages Dyckerhoff has made significant contributions to the cement industry and the use of cement. After 150 years the company has merged into the Buzzi Unicem group with its head office in Italy.


Goedecke B.,Dyckerhoff AG | Locher D.,Dyckerhoff AG | Matheis R.,Dyckerhoff AG | Pohl M.,Dyckerhoff AG
Cement International | Year: 2014

Transferring the Industrial Emissions Directive into German legislation, the limit for NOx emissions was further reduced to 200 mg/m 3 (stp) at 10 % O2. This limit must be met by 1 st January 2019 at the latest and this will be a severe challenge for the German cement producers. Dyckerhoff is operating eight rotary kilns for clinker production in Germany, three with calciners. In this report the results of a pilot project for the selective non-catalytic NOx reduction (SNCR) on two classic preheater kilns without calciners at the Göllheim plant of Dyckerhoff will be presented. By means of multistage injection with optimized nozzles, online computational fluid dynamics (CFD) modelling of the temperature and gas distribution in the riser duct and of a complex multivariable control, the requirements could be intermittently fulfilled on one of the two kiln lines with favourable geometric parameters. Aside from the layout of the installation and the achieved results in regard to NOx and ammonia slip at the stack, this paper will also deal with the process engineering conditions and the geometric differences between the two kiln lines. As a general rule a non-treated bypass stream reduces the potential of the classic SNCR technology and should therefore be considered separately.

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