Zobrazeno 1 - 10
of 67
pro vyhledávání: '"Rainer Dähn"'
Autor:
Andreas Leemann, Mahsa Bagheri, Barbara Lothenbach, Karen Scrivener, Solène Barbotin, Emmanuelle Boehm-Courjault, Guoqing Geng, Rainer Dähn, Zhenguo Shi, Mahdieh Shakoorioskooie, Michele Griffa, Robert Zboray, Pietro Lura, Emil Gallyamov, Roozbeh Rezakhani, Jean-Francois Molinari
Publikováno v:
RILEM Technical Letters, Vol 6 (2022)
In the last four years, a multidisciplinary study involving several research groups in Switzerland tackled a number of unsolved, fundamental issues about the alkali-silica reaction (ASR) in concrete. The covered topics include SiO2 dissolution, the c
Externí odkaz:
https://doaj.org/article/a6da21d6c40f4a4e8c77951c6f521171
Autor:
André M. Scheidegger, Marika Vespa, Erich Wieland, Messaoud Harfouche, Daniel Grolimund, Rainer Dähn, Andreas Jenni, Karen Scrivener
Publikováno v:
CHIMIA, Vol 60, Iss 3 (2006)
Externí odkaz:
https://doaj.org/article/c6d16da91bbf4a1eb28107a00eff3885
Autor:
Zhe Yang, Yu Ning, Chang He, Yumei Li, Sen Yang, Baoguo Yang, Jiawei Kang, Rainer Dähn, Yilian Li
Publikováno v:
ACS Earth and Space Chemistry. 6:90-99
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0bb2a3b075b16deede1af81caff17719
https://doi.org/10.1021/acsearthspacechem.1c00300
https://doi.org/10.1021/acsearthspacechem.1c00300
Publikováno v:
Geochimica et Cosmochimica Acta. 312:180-193
The uptake of Zn by Illite du Puy (IdP) and two argillaceous rocks, Opalinus Clay (OPA) and Boda Claystone (BODA) was investigated. The uptake of Zn by illite was studied in 0.1 M NaCl at near-neutral pH and Zn loadings varying from 2.1 to 42 mmol/kg
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9010d5ca813792d71ca66f36f484cdd1
https://doi.org/10.1016/j.gca.2021.07.001
https://doi.org/10.1016/j.gca.2021.07.001
Publikováno v:
Geochimica et Cosmochimica Acta. 302:193-208
Thallium (Tl) is a highly toxic trace metal. It occurs mostly as soluble monovalent Tl(I) and less frequently as poorly soluble trivalent Tl(III). Laboratory studies have shown that vacancy-containing hexagonal birnessites can sorb Tl with a very hig
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::03b4b0e14ccf517975d21fb3f6694fa6
https://doi.org/10.1016/j.gca.2021.03.011
https://doi.org/10.1016/j.gca.2021.03.011
Publikováno v:
Environmental Pollution. 321:121091
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::13cdf3068e482f4b298533dc2f356027
https://doi.org/10.1016/j.envpol.2023.121091
https://doi.org/10.1016/j.envpol.2023.121091
Publikováno v:
Environmental Science & Technology. 53:6877-6886
Fe-bearing clay minerals are abundant in argillaceous rocks as their redox-active structural iron may control the sorption mechanism of redox sensitive elements on the surface of clay minerals. The extent and efficiency of the redox reactions depend
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3d910cee4024b73eba2d808675002bd8
https://doi.org/10.1021/acs.est.8b06952
https://doi.org/10.1021/acs.est.8b06952
Autor:
Erich Wieland, Barbara Lothenbach, Dario Ferreira Sanchez, Bernhard Wehrli, Andrea Mancini, Sirine C. Fakra, Daniel Grolimund, Guoqing Geng, Rainer Dähn
Publikováno v:
Cement and Concrete Research
'Cement and Concrete Research ', vol: 140, pages: 106287-1-106287-18 (2021)
'Cement and Concrete Research ', vol: 140, pages: 106287-1-106287-18 (2021)
Slag-containing pastes and concretes were analysed by element-specific synchrotron-based techniques to determine the speciation of iron on crushed materials through spatially resolved micro-spectroscopic studies. The investigated cement samples were
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b91534ac5cf972197fd7b03e4c006bda
https://hdl.handle.net/11250/3061320
https://hdl.handle.net/11250/3061320
Autor:
Rainer Dähn, Mahdieh Shakoorioskooie, Daniel Grolimund, Erich Wieland, Andreas Leemann, Solène Barbotin, Zhenguo Shi, Guoqing Geng, Dario Ferreira Sanchez
Publikováno v:
Cement and Concrete Research
The ASR products in concrete have various chemical compositions. It is yet unclear whether and how these products develop micro-expansion upon moisture ingress. This paper presents a 3D in-situ observation of the crystallography and volume change of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::771f4c85bad5ae887768c33ccf1c3e83
Autor:
Rainer Dähn, Erich Wieland, Guoqing Geng, Andrea Mancini, Barbara Lothenbach, Bernhard Wehrli
Publikováno v:
Journal of Colloid and Interface Science
Journal of Colloid and Interface Science, 588
Journal of Colloid and Interface Science, 588
Fe(II) interaction with cement phases was studied by means of co-precipitation and sorption experiments in combination with X-ray absorption fine structure (XAFS) spectroscopy. Oxidation of Fe(II) was fast in alkaline conditions and therefore, a meth
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fcb23016ec9f99e0c65d8a86ccaaa090
https://pubmed.ncbi.nlm.nih.gov/34895728
https://pubmed.ncbi.nlm.nih.gov/34895728