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Statements

Subject Item
n2:RIV%2F68407700%3A21110%2F14%3A00221466%21RIV15-MSM-21110___
rdf:type
n14:Vysledek skos:Concept
dcterms:description
This paper investigates bughole minimization techniques in self-compacting concrete in a precast concrete plant in Brazil. Specifically, the objective of this study was to improve the final surface appearance of self-compacting concrete precast elements with respect to the presence of bugholes. Bugholes are imperfections that appear on a concrete surface after demoulding. The experimental study was based on the modification of concrete composition and the use of two types of release agents. In particular, ethyl-alcohol and biodegradable-oil-based admixtures were applied on laminated plywood formwork. By using a specific image analysis method, the concrete surface was analyzed using digital images taken from concrete board plates with dimensions of 1.00 x 0.30 x 0.08 m. The results indicate that a reduction in the concrete shear stress ratio contributed to reduce the percentage of bugholes, whereas no significant difference in the concrete surface appearance was observed as a function of the investigated release agents This paper investigates bughole minimization techniques in self-compacting concrete in a precast concrete plant in Brazil. Specifically, the objective of this study was to improve the final surface appearance of self-compacting concrete precast elements with respect to the presence of bugholes. Bugholes are imperfections that appear on a concrete surface after demoulding. The experimental study was based on the modification of concrete composition and the use of two types of release agents. In particular, ethyl-alcohol and biodegradable-oil-based admixtures were applied on laminated plywood formwork. By using a specific image analysis method, the concrete surface was analyzed using digital images taken from concrete board plates with dimensions of 1.00 x 0.30 x 0.08 m. The results indicate that a reduction in the concrete shear stress ratio contributed to reduce the percentage of bugholes, whereas no significant difference in the concrete surface appearance was observed as a function of the investigated release agents
dcterms:title
Evaluation of the effect of concrete compositional changes and the use of ethyl-alcohol and biodegradable-oil-based release agents on the final surface appearance of self-compacting concrete precast elements Evaluation of the effect of concrete compositional changes and the use of ethyl-alcohol and biodegradable-oil-based release agents on the final surface appearance of self-compacting concrete precast elements
skos:prefLabel
Evaluation of the effect of concrete compositional changes and the use of ethyl-alcohol and biodegradable-oil-based release agents on the final surface appearance of self-compacting concrete precast elements Evaluation of the effect of concrete compositional changes and the use of ethyl-alcohol and biodegradable-oil-based release agents on the final surface appearance of self-compacting concrete precast elements
skos:notation
RIV/68407700:21110/14:00221466!RIV15-MSM-21110___
n3:aktivita
n10:S
n3:aktivity
S
n3:cisloPeriodika
February
n3:dodaniDat
n15:2015
n3:domaciTvurceVysledku
n5:7848463 Leal Da Silva, Wilson Ricardo
n3:druhVysledku
n6:J
n3:duvernostUdaju
n4:S
n3:entitaPredkladatele
n11:predkladatel
n3:idSjednocenehoVysledku
15470
n3:idVysledku
RIV/68407700:21110/14:00221466
n3:jazykVysledku
n12:eng
n3:klicovaSlova
bugholes; image analysis; precast concrete; release agent; self-compacting concrete
n3:klicoveSlovo
n9:self-compacting%20concrete n9:image%20analysis n9:precast%20concrete n9:release%20agent n9:bugholes
n3:kodStatuVydavatele
GB - Spojené království Velké Británie a Severního Irska
n3:kontrolniKodProRIV
[B2793CF52C3F]
n3:nazevZdroje
Construction and Building Materials
n3:obor
n13:JM
n3:pocetDomacichTvurcuVysledku
2
n3:pocetTvurcuVysledku
4
n3:rokUplatneniVysledku
n15:2014
n3:svazekPeriodika
52
n3:tvurceVysledku
Lucena, D. S. Štemberk, Petr Prudencio, L. R. Leal Da Silva, Wilson Ricardo
n3:wos
000331424400024
s:issn
0950-0618
s:numberOfPages
7
n18:doi
10.1016/j.conbuildmat.2013.10.102
n17:organizacniJednotka
21110