Uptake of nickel and strontium by a sulphate-resisting Portland cement

被引：0

作者：

Wieland, E ^{[1
]}

Tits, J ^{[1
]}

Spieler, P ^{[1
]}

Dobler, JP ^{[1
]}

Scheidegger, AM ^{[1
]}

机构：

[1] Paul Scherrer Inst, Lab Waste Management, Villigen, Switzerland

来源：

APPLIED MINERALOGY, VOLS 1 AND 2: RESEARCH, ECONOMY, TECHNOLOGY, ECOLOGY AND CULTURE | 2000年

关键词：

D O I：

暂无

中图分类号：

P57 [矿物学];

学科分类号：

070901 ;

摘要：

Sr-85 and Ni-63 uptake by a sulfate-resisting Portland cement were investigated under the chemical conditions relevant to a non-evolved cementitious near field. Uptake studies were performed under equilibrium as well as transient chemical conditions in the presence and absence of isosaccharinic acid (ISA). Sr and Ni inventories in cement pore water were found to be controlled by stable isotopes associated with the cement matrix. Under equilibrium conditions, retention at trace levels is due to isotopic exchange between the radioactive and stable isotopes. Under transient conditions, however, uptake processes are superimposed by phase reactions that affect Ni immobilization but not Sr binding. The presence of ISA exerts no measurable effect on radionuclide retention. Sr-85 uptake by cement is attributed to Ca/Sr replacement on calcium silicate hydrates (CSH), whereas the formation of Ni-Al layered double hydroxides may control Ni-63 uptake.

引用

页码：705 / 708

页数：4

共 50 条

[31] Hydration of portland cement, natural zeolite mortar in water and sulphate solution
Janotka, I
Mojumdar, SC
MATERIALES DE CONSTRUCCION, 2003, 53 (269) : 17 - 27
[32] Hydration of Portland cement - natural zeolite mortar in water and sulphate solution
Janotka, I
Mojumdar, SC
SOLID STATE CHEMISTRY V, 2003, 90-91 : 309 - 315
[33] Sulphate-based activation of a binary and ternary hybrid cement with portland cement and different pozzolans
Rojas-Martinez, A. E.
Gonzalez-Lopez, J. R.
Guerra-Cossio, M. A.
Hernandez-Carrillo, G.
CONSTRUCTION AND BUILDING MATERIALS, 2024, 421
[34] Crystal chemistry of extracted brownmillerite from sulfate-resisting Portland cement
Meriot, A.
De Noirfontaine, M. N.
Izoret, L.
Courtial, M.
Tusseau-Nenez, S.
Gauffinet, S.
Diliberto, S.
Dunstetter, F.
ACTA CRYSTALLOGRAPHICA A-FOUNDATION AND ADVANCES, 2022, 78 : E550 - E551
[35] Reactions of sulphate-resistant Portland cement and its blends with silica fume and aqueous magnesium sulphate
Brew, DRM
Glasser, EP
ADVANCES IN CEMENT RESEARCH, 2002, 14 (03) : 101 - 111
[36] Influence of the sulphate content of recycled aggregates on the properties of cement-treated granular materials using Sulphate-Resistant Portland Cement
Agrela, F.
Cabrera, M.
Galvin, A. P.
Barbudo, A.
Ramirez, A.
CONSTRUCTION AND BUILDING MATERIALS, 2014, 68 : 127 - 134
[37] X-ray mapping of interstitial phases in sulphate resisting cement clinker
Euroc Research AB, Lund, Sweden
Adv Cem Res, 33 (17-23):
[38] X-ray mapping of interstitial phases in sulphate resisting cement clinker
Backstrom, E
Hansen, S
ADVANCES IN CEMENT RESEARCH, 1997, 9 (33) : 17 - 23
[39] Conduction calorimetric studies of ternary binders based on Portland cement, calcium aluminate cement and calcium sulphate
David Torréns-Martín
Lucía Fernández-Carrasco
María Teresa Blanco-Varela
Journal of Thermal Analysis and Calorimetry, 2013, 114 : 799 - 807
[40] Effect of Polymer Addition on Performance of Portland Cement Mortar Exposed to Sulphate Attack
Lukowski, Pawel
Debska, Dominika
MATERIALS, 2020, 13 (01)

← 1 2 3 4 5 →