About: Maturation of loess treated with variable lime admixture: Pore space textural evolution and related phase changes

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An Entity of Type : http://linked.opendata.cz/ontology/domain/vavai/Vysledek, within Data Space : linked.opendata.cz associated with source document(s)

Attributes	Values
rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
rdfs:seeAlso	http://dx.doi.org/10.1016/j.clay.2012.03.008
Description	Changes in the pore space of loess treated with 1%-8% of lime (CaO) and compacted in the laboratory were studied by the mercury intrusion porosimetry (MIP) over a long term period (1-360 days). The measurement of pH value was used to monitor the progress of pozzolanic reaction in curing time. The development of the new mineral phases (calcium silicate hydrates, calcium aluminates hydrates and calcium aluminate carbonate hydrate) in the treated soil was investigated using X-Ray diffraction. The MIP indicated that 2% of CaO was sufficient for long term pozzolanic reaction. The threshold value corresponded to the initial consumption of lime determined from the pH measurements. Although the pH value decreases with curing time, at pH higher than 11.7 the progressing pozzolanic reaction changes the voids of the lime treated soil. Above 2% of CaO the macroporosity kept decreasing due to increasing mesoporosity for 360 curing days due to the new mineral phases. At 2% of CaO the decrease of the macroporosity are stopped at 120 days. Below 2% of lime the changes of the macroporosity were detected during first 28 curing days due to the formation of portlandite and calcite. Changes in the pore space of loess treated with 1%-8% of lime (CaO) and compacted in the laboratory were studied by the mercury intrusion porosimetry (MIP) over a long term period (1-360 days). The measurement of pH value was used to monitor the progress of pozzolanic reaction in curing time. The development of the new mineral phases (calcium silicate hydrates, calcium aluminates hydrates and calcium aluminate carbonate hydrate) in the treated soil was investigated using X-Ray diffraction. The MIP indicated that 2% of CaO was sufficient for long term pozzolanic reaction. The threshold value corresponded to the initial consumption of lime determined from the pH measurements. Although the pH value decreases with curing time, at pH higher than 11.7 the progressing pozzolanic reaction changes the voids of the lime treated soil. Above 2% of CaO the macroporosity kept decreasing due to increasing mesoporosity for 360 curing days due to the new mineral phases. At 2% of CaO the decrease of the macroporosity are stopped at 120 days. Below 2% of lime the changes of the macroporosity were detected during first 28 curing days due to the formation of portlandite and calcite. (en)
Title	Maturation of loess treated with variable lime admixture: Pore space textural evolution and related phase changes Maturation of loess treated with variable lime admixture: Pore space textural evolution and related phase changes (en)
skos:prefLabel	Maturation of loess treated with variable lime admixture: Pore space textural evolution and related phase changes Maturation of loess treated with variable lime admixture: Pore space textural evolution and related phase changes (en)
skos:notation	RIV/00216208:11310/12:10129936!RIV13-MSM-11310___
http://linked.open...avai/riv/aktivita	I S Z
http://linked.open...avai/riv/aktivity	I, S, Z(MSM0021620855)
http://linked.open...iv/cisloPeriodika	JUNE
http://linked.open...vai/riv/dodaniDat	2013
http://linked.open...aciTvurceVysledku	Přikryl, Richard Metelková, Zdeňka Boháč, Jan
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Univerzita Karlova v Praze / Přírodovědecká fakulta
http://linked.open...dnocenehoVysledku	148780
http://linked.open...ai/riv/idVysledku	RIV/00216208:11310/12:10129936
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	X-ray diffraction; mercury porosimetry; lime consumption; Lime treated loess (en)
http://linked.open.../riv/klicoveSlovo	X-ray diffraction mercury porosimetry Lime treated loess lime consumption
http://linked.open...odStatuVydavatele	NL - Nizozemsko
http://linked.open...ontrolniKodProRIV	[159EF9DA2DDC]
http://linked.open...i/riv/nazevZdroje	Applied Clay Science
http://linked.open...in/vavai/riv/obor	DB
http://linked.open...ichTvurcuVysledku	3 (xsd:int)
http://linked.open...cetTvurcuVysledku	4 (xsd:int)
http://linked.open...UplatneniVysledku	2012
http://linked.open...v/svazekPeriodika	61
http://linked.open...iv/tvurceVysledku	Přikryl, Richard Sedlářová, Ivona Boháč, Jan Metelková, Zdeňka
http://linked.open...ain/vavai/riv/wos	000304845900006
http://linked.open...n/vavai/riv/zamer	Material flow mechanisms in the upper spheres of the Earth
issn	0169-1317
number of pages	7 (xsd:int)
http://bibframe.org/vocab/doi	10.1016/j.clay.2012.03.008
http://localhost/t...ganizacniJednotka	11310

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