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Miguel Ángel Sanjuán, Esteban Estévez and Cristina Argiz
The testing procedure provided in this paper aims to estimate the available alkali content in cement-based materials, and it has a direct application in the construction materials field. Particularly, it should be used when the potential alkali?silica re...
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V. M. Konoval
Pág. 177 - 179
The article considers the issues of aggressive media influence upon corrosion-resistance and service lifespan of the collectors made up from reinforced concrete pipes. As the basic method of protection from internal corrosion it is suggested making oblig...
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Carmen Otilia Rusanescu, Maria Ciobanu, Marin Rusanescu and Raluca Lucia Dinculoiu
This work is a comprehensive study focusing on various methods for processing wheat straw to enhance its suitability for bioethanol production. It delves into mechanical, physical, chemical, and biological pretreatments, each aimed at improving the enzym...
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M. Otero, L. Freire, S. Gómez-Cuervo and C. Ávila
Elevated ammonium (NH4+) concentrations in untreated waterways contribute to eutrophication and dissolved oxygen depletion. Geopolymer (GP) materials are introduced as sustainable, straightforward operation and low-cost option for pollutant adsorption th...
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Lyudmila N. Morozova, Sergey G. Skublov, Dmitry R. Zozulya, Pavel A. Serov, Elena S. Borisenko, Anna N. Solovjova and Alexandra K. Gavrilchik
Beryl is both an accessory and a rock-forming mineral in pegmatites that contain beryl, making it a major source of Be. Beryl-bearing pegmatites of the Shongui deposit, located in the Kola province of the Northeastern Fennoscandian Shield, hold beryl wit...
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Rinat M. Manasypov, Artem G. Lim, Ivan V. Kri?kov, Tatiana V. Raudina, Danil G. Kurashev, Liudmila S. Shirokova and Oleg S. Pokrovsky
Thermokarst lakes in the Western Siberian Lowland (WSL) are major environmental factors controlling organic carbon and trace metal storage in inland waters and greenhouse gas emissions to the atmosphere. In contrast to previously published research devot...
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Haya M. Alogayell, Eman Mohamed M. EL-Bana and Mohamed Abdelfattah
The present work focuses on a comprehensive hydrochemical assessment of groundwater within a shallow aquifer located in the central region of Saudi Arabia. This aquifer serves as the principal source of groundwater supply for agricultural irrigation purp...
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Oleksandr Kovalchuk,Oleksandr Gelevera,Vasyl Ivanychko
Pág. 33 - 40
This paper reports results from comparative testing the reaction "alkali ? active silica" in traditional Portland cement and alkaline Portland cement with the addition of metakaolin. The research is based on studying the process of structure formation in...
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Rico Bartak, Wolfgang Macheleidt, Thomas Grischek
Pág. 1 - 13
Tracer and pump tests including depth dependent water sampling were performed to investigate the flow conditions inside and in the vicinity of an injection well with two screen segments used for subsurface iron removal (SIR). A high resolution groundwate...
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Mario Vergara,Jan O. Nystrom
Pág. 97 - 106
ABSTRACT. A back-arc setting for the Lower Cretaceous volcanic rocks in the Andean Cordillera of Central Chile (31-34°S), previously proposed on paleogeographic grounds, is consistent with their geochemical features. The rocks are basic to intermediate l...
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