About: 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

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About: 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 Goto Sponge NotDistinct Permalink

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
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 (en)
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 (en)
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 (en)
skos:notation	RIV/68407700:21110/14:00221466!RIV15-MSM-21110___
http://linked.open...avai/riv/aktivita	S
http://linked.open...avai/riv/aktivity	S
http://linked.open...iv/cisloPeriodika	February
http://linked.open...vai/riv/dodaniDat	2015
http://linked.open...aciTvurceVysledku	Štemberk, Petr Leal Da Silva, Wilson Ricardo
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	České vysoké učení technické v Praze / Fakulta stavební
http://linked.open...dnocenehoVysledku	15470
http://linked.open...ai/riv/idVysledku	RIV/68407700:21110/14:00221466
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	bugholes; image analysis; precast concrete; release agent; self-compacting concrete (en)
http://linked.open.../riv/klicoveSlovo	self-compacting concrete image analysis bugholes precast concrete release agent
http://linked.open...odStatuVydavatele	GB - Spojené království Velké Británie a Severního Irska
http://linked.open...ontrolniKodProRIV	[B2793CF52C3F]
http://linked.open...i/riv/nazevZdroje	Construction and Building Materials
http://linked.open...in/vavai/riv/obor	JM
http://linked.open...ichTvurcuVysledku	2 (xsd:int)
http://linked.open...cetTvurcuVysledku	4 (xsd:int)
http://linked.open...UplatneniVysledku	2014
http://linked.open...v/svazekPeriodika	52
http://linked.open...iv/tvurceVysledku	Štemberk, Petr Leal Da Silva, Wilson Ricardo Lucena, D. S. Prudencio, L. R.
http://linked.open...ain/vavai/riv/wos	000331424400024
issn	0950-0618
number of pages	7 (xsd:int)
http://bibframe.org/vocab/doi	10.1016/j.conbuildmat.2013.10.102
http://localhost/t...ganizacniJednotka	21110

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