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Statements

Subject Item
n2:RIV%2F68407700%3A21110%2F12%3A00195294%21RIV13-MSM-21110___
rdf:type
skos:Concept n15:Vysledek
rdfs:seeAlso
http://www.wasteforum.cz/cisla/WF_3_2012.pdf#page=27
dcterms:description
Presently the focus in road construction sector concentrates on technologies and techniques, which allow decreasing energy demand necessary for their production. At the same time attention is paid to decreasing construction costs related to new structures or pavement rehabilitation works. In the Czech Republic in this connection the development during last ten years was oriented in increased extend on cold in-place recycling. techniques. Certain positive potential of this group of techniques is the posibility to use so called energetic by-products in a form of alternative binders or fillers (fine graded particles). These by-products, coming from coal combustion, have a relatively broad range of possible applications especially like alternative substitution of normally used hydraulic binders (cement, lime) in cold recycling mixes. Within the experimental activities of Faculty of Civil Engineering CTU in Prague commonly used cement was replaced by fly-ashes or inorganic loose binder obtained by mechanical activation of fluidized fly-ash. With respect to limited knowledge of behavior and properties of mixes if an alternative material is used, it is necessary to specify correctly newly designed mixes. For assessed mixes basic volumetric properties, as well as strength and deformation characteristics were determined. Within the evaluation of particular performance characteristics the influence of different aggregate grading on strength properties was assessed as well. From the expected use leaching tests were done for selected mixes as well as combined water and frost susceptibility tested. Some of so far gained results are presented in the paper. Presently the focus in road construction sector concentrates on technologies and techniques, which allow decreasing energy demand necessary for their production. At the same time attention is paid to decreasing construction costs related to new structures or pavement rehabilitation works. In the Czech Republic in this connection the development during last ten years was oriented in increased extend on cold in-place recycling. techniques. Certain positive potential of this group of techniques is the posibility to use so called energetic by-products in a form of alternative binders or fillers (fine graded particles). These by-products, coming from coal combustion, have a relatively broad range of possible applications especially like alternative substitution of normally used hydraulic binders (cement, lime) in cold recycling mixes. Within the experimental activities of Faculty of Civil Engineering CTU in Prague commonly used cement was replaced by fly-ashes or inorganic loose binder obtained by mechanical activation of fluidized fly-ash. With respect to limited knowledge of behavior and properties of mixes if an alternative material is used, it is necessary to specify correctly newly designed mixes. For assessed mixes basic volumetric properties, as well as strength and deformation characteristics were determined. Within the evaluation of particular performance characteristics the influence of different aggregate grading on strength properties was assessed as well. From the expected use leaching tests were done for selected mixes as well as combined water and frost susceptibility tested. Some of so far gained results are presented in the paper.
dcterms:title
Use of Alternative Binders Induced from the Treatment of Fluidized Fly-ashes in Cold-recycled Pavement Mixtures Use of Alternative Binders Induced from the Treatment of Fluidized Fly-ashes in Cold-recycled Pavement Mixtures
skos:prefLabel
Use of Alternative Binders Induced from the Treatment of Fluidized Fly-ashes in Cold-recycled Pavement Mixtures Use of Alternative Binders Induced from the Treatment of Fluidized Fly-ashes in Cold-recycled Pavement Mixtures
skos:notation
RIV/68407700:21110/12:00195294!RIV13-MSM-21110___
n15:predkladatel
n16:orjk%3A21110
n5:aktivita
n18:S
n5:aktivity
S
n5:cisloPeriodika
3
n5:dodaniDat
n11:2013
n5:domaciTvurceVysledku
n17:7996233 n17:6359701
n5:druhVysledku
n6:J
n5:duvernostUdaju
n8:S
n5:entitaPredkladatele
n9:predkladatel
n5:idSjednocenehoVysledku
176312
n5:idVysledku
RIV/68407700:21110/12:00195294
n5:jazykVysledku
n13:eng
n5:klicovaSlova
fly-ash; mechanically activated fly-ash; fluid coal combustion; mechanical activation; cold asphalt recycling techniques; indirect tensile strength; stiffness; water sensitivity
n5:klicoveSlovo
n7:fly-ash n7:mechanically%20activated%20fly-ash n7:indirect%20tensile%20strength n7:mechanical%20activation n7:cold%20asphalt%20recycling%20techniques n7:water%20sensitivity n7:stiffness n7:fluid%20coal%20combustion
n5:kodStatuVydavatele
CZ - Česká republika
n5:kontrolniKodProRIV
[17DFC2DACA8F]
n5:nazevZdroje
WASTE FORUM
n5:obor
n14:JN
n5:pocetDomacichTvurcuVysledku
2
n5:pocetTvurcuVysledku
3
n5:rokUplatneniVysledku
n11:2012
n5:svazekPeriodika
8
n5:tvurceVysledku
Suda, Jan Faltus, M. Valentin, Jan
s:issn
1804-0195
s:numberOfPages
9
n19:organizacniJednotka
21110