scholarly journals Microbiota of coal pit waste heaps of Chervonograd Mining Region after coal ash application

2015 ◽  
Vol 23 (1) ◽  
pp. 33-38
Author(s):  
S. V. Kuzmishyna ◽  
S. O. Hnatush ◽  
A. A. Halushka
Keyword(s):  
Coal Ash ◽  
Mining Region

scholarly journals MICROBIOTA OF THE CENTRAL ENRICHMENT PLANT WASTE HEAPS OF CHERVONOGRAD MINING REGION AFTER COAL ASH APPLYING

2014 ◽  
Vol 0 (4(28)) ◽  
pp. 69-76 ◽  
Author(s):  
С. В. Кузьмішина ◽  
С. О. Гнатуш ◽  
В. І. Баранов
Keyword(s):  
Coal Ash ◽  
Enrichment Plant ◽  
Mining Region ◽  
Plant Waste

Cheratte-Visé: a Muslim village in Wallonia

2005 ◽  
Vol 2 (3) ◽  
pp. 308-344
Author(s):  
Christophe Parthoens ◽  
Dina Sensi ◽  
Altay Manco
Keyword(s):  
Social Integration ◽  
Host Country ◽  
Local Authority ◽  
Working Population ◽  
Mining Region ◽  
The Sixties ◽  
Local Councillors ◽  
Turkish Community

This article aims to describe the processes leading to social integration of a Turkish community at the beginning of the sixties who were resident in a mining region in Belgium. The stages through which this immigrant working population had to go through are described here: and how it managed, within a third of century, to become established in the district, to structure itself in associations, to be recognized by the local authority and the institutional fabric of the host country, and finally, to sit down at the same table with the local councillors.

Pengaruh Penggunaan Batu Basalt Lampung dan Batubara dalam Bahan Baku terhadap Karakteristik Klinker

2020 ◽  
Vol 10 (1) ◽  
pp. 49
Author(s):  
Suharto Suharto ◽  
Muhammad Amin ◽  
Muhammad Al Muttaqii ◽  
Syafriadi Syafriadi ◽  
Kiki Nurwanti
Keyword(s):  
Experimental Study ◽  
Raw Materials ◽  
Coal Ash ◽  
Heating Time ◽  
Raw Material ◽  
Silica Sand ◽  
Cement Clinker ◽  
Duration Of Heating

Experimental study on the use of basalt stone originated from Lampung has been conducted to evaluate its potential for a partial substitute of raw material in production of cement clinker. The basalt stone contains minerals of anorthite, augite, and albite phases that are required for clinker formation. In this study, the main raw materials were 80% limestone, 10% silica sand, 9% clay and 1% iron sand. The raw material in these experiments were mixtures 90% or 80% of the main raw material and 10% or 20% of basalt stone. The effect of adding coal to raw materials was also studied to see the possibility of an increase in clinkerization temperature inside the raw material mixture, and at the same time to see the effect of coal ash on clinker composition. Clinker obtained from heating of raw materials at a temperature of 1100oC had LSF of 94.1% and 95.1% (heating time of 1 and 3 hours). If heating is carried out at 1200oC, the clinker had LSF of 97.7% and 98.0% (heating time of 2 and 3 hours, respectively). Depending on the temperature and duration of heating, the clinker mostly had SM in the range of 2.18-2.40% , and AM in the range of 0,78-1.80%. Characterization using XRD showed that the clinker consisted of larnite and gehlenite phases, and dominated by CaO.Batu basalt Lampung telah diuji potensinya sebagai pengganti sebagian bahan baku utama pembuatan klinker semen. Batu basalt tersebut memiliki mineral-mineral dalam fase anorthite, augite, dan albite yang diperlukan pada pembentukan klinker. Pada penelitian ini, bahan baku utama adalah batu kapur 80%, pasir silika 10%, tanah liat 9% dan pasir besi 1%. Campuran bahan baku klinker adalah 90% atau 80% bahan baku utama dan 10% atau 20% batu basalt. Efek penambahan batubara ke dalam bahan baku klinker juga dipelajari untuk melihat kemungkinan kenaikan temperatur klinkerisasi di dalam campuran bahan baku, dan sekaligus untuk melihat efek abu batubara terhadap komposisi klinker. Klinker hasil pemanasan bahan baku pada temperatur 1100oC memiliki LSF 94,1% dan 95,1% (lama pemanasan 1 dan 3 jam). Jika pemanasan dilakukan pada 1200oC, klinker memilik LSF 97,7% dan 98,00% (lama pemanasan 2 dan 3 jam). Tergantung pada temperatur dan lama pemanasan, klinker hasil percobaan ini umumnya memiliki SM 2,18-2,40%, dan AM antara 0,78-1,80%. Karakterisasi dengan XRD menunjukkan bahwa klinker terdiri dari fase larnite dan gehlenite, dan didominasi CaO.

Lutherans and the Suffering of Christ

2017 ◽  
Author(s):  
Bridget Heal
Keyword(s):  
Seventeenth Century ◽  
Sixteenth Century ◽  
Case Studies ◽  
Virgin Mary ◽  
Devotional Literature ◽  
Physical Pain ◽  
Late Medieval ◽  
Mining Region

Chapter 5 focuses on one particular type of Lutheran devotional image: the crucifix. It examines transformations in Lutheran Passion piety from the early Reformation to the era of Paul Gerhardt (1607–76), using this to illustrate the increasing significance accorded to images. Luther himself had condemned the excesses of late-medieval Passion piety, with its emphasis on compassion for Christ and the Virgin Mary, on physical pain and on tears. From the later sixteenth century onwards, however, Lutheran sermons, devotional literature, prayers and poetry described Christ’s suffering in increasingly graphic terms. Alongside this, late-medieval images of the Passion were restored and new images were produced. Drawing on case studies from the Erzgebirge, a prosperous mining region in southern Saxony, and Upper Lusatia, the chapter investigates the ways in which images of the Passion were used in Lutheran communities during the seventeenth century.

scholarly journals Sustainable Concrete Application in the Manufacture of University Urban Furniture

2019 ◽  
Vol 303 ◽  
pp. 05001
Author(s):  
Mónica Bedoya ◽  
Federico Rivera ◽  
María Rico ◽  
David Vélez ◽  
Andrés Urrego ◽  
...  
Keyword(s):  
Finite Elements ◽  
Mechanical Characteristics ◽  
Coal Ash ◽  
Sustainable Concrete ◽  
Waste Production ◽  
Construction And Demolition Wastes ◽  
The World ◽  
Sustainable Materials ◽  
The University ◽  
Community Diagnosis

It is clear that construction and demolition wastes (CDW) are constantly increasing throughout the world and these wastes can be used effectively to minimize the consumption of natural resources in the manufacture of more sustainable concrete. The CDW occupy an important segment of world waste production and its generation reached approximately 3 billion tons in 2012 in 40 countries [1]. Although this topic has been studied in the world, it is still valid for the reuse of waste that is constantly increasing, and although in many countries there are already examples of its use this type of concrete in Colombia and in the Medellìn city lacks applications. This project proposes the application of a sustainable concrete made with CDW and coal ash in the Medellín city for its implementation in the construction of urban furniture. A university community diagnosis of the needs in terms of furnishing was made. With the design reached, a modular chair was proposed to enable spaces within the university. The mechanical characteristics of the concrete and the design of the chair are evaluated and a simulation is done through finite elements to evaluate the viability of the proposed concrete, finding that with these properties is possible to manufacture durable and sustainable furniture that serves as an example for the application of sustainable materials

scholarly journals Coal ash and limestone interactions in quicklime production

Fuel ◽  
2021 ◽  
Vol 300 ◽  
pp. 120989
Author(s):  
Karin Sandström ◽  
Markus Broström ◽  
Matias Eriksson
Keyword(s):  
Coal Ash

Effect of coal ash on strength characteristics of clayey silt soil treated with cement

2020 ◽  
Author(s):  
M. Sumesh ◽  
Baleshwar Singh ◽  
K. Vigneshwaran ◽  
C. Samsonchelladurai ◽  
G. Vikranth
Keyword(s):  
Coal Ash ◽  
Strength Characteristics ◽  
Clayey Silt
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