Development of self-consolidating concrete for slip form paving
dc.contributor.author | Lu, Gang | |
dc.contributor.department | Civil, Construction, and Environmental Engineering | |
dc.date | 2020-06-17T02:40:00.000 | |
dc.date.accessioned | 2020-06-30T08:13:39Z | |
dc.date.available | 2020-06-30T08:13:39Z | |
dc.date.copyright | Sat Jan 01 00:00:00 UTC 2005 | |
dc.date.issued | 2005-01-01 | |
dc.description.abstract | <p>"In this study, a new type of self-consolidating concrete for slip-form paving (SF SCC) was developed. Effects of materials and mix proportions on fresh concrete compact-ability, flow-ability, and shape stability were studied. Type I cement and class C and F fly ashes were used as cementitious materials. Air-entraining agent (AEA), viscosity modifying admixture (VMA), and superplasticizer were employed as admixtures. Normal river sand and limestone were utilized as aggregate. A total of 46 concrete mixes were studied, and non-rodding slump flow test, modified compaction factor test, IBB rheometer test, and ""green"" strength tests were performed for the concrete mixtures. In addition, a ""mini-paver"" was developed to simulate the field SF SCC paving in laboratory. The study has demonstrated that by engineering concrete materials and mix proportions, it is feasible to develop a new type of SCC for slip form paving application. Concrete mixtures having a compaction factor of approximate 1.0, slump of approximated 8"", and spread of approximated 12"" displayed not only to be able to self-compact but also to hold its shape right after placement. The test results also indicated that concrete compactibility increased but stability decreased with flow-ability. There was a nonlinear relationship between slump and spread for the concrete mixtures tested. The interception obtained from the IBB tests (similar to yield stress of the mixtures) had a good relationship with not only slump but also ""green"" strength of concrete."</p> | |
dc.format.mimetype | application/pdf | |
dc.identifier | archive/lib.dr.iastate.edu/rtd/19170/ | |
dc.identifier.articleid | 20169 | |
dc.identifier.contextkey | 18125203 | |
dc.identifier.doi | https://doi.org/10.31274/rtd-20200616-63 | |
dc.identifier.s3bucket | isulib-bepress-aws-west | |
dc.identifier.submissionpath | rtd/19170 | |
dc.identifier.uri | https://dr.lib.iastate.edu/handle/20.500.12876/73151 | |
dc.language.iso | en | |
dc.source.bitstream | archive/lib.dr.iastate.edu/rtd/19170/Lu_ISU_2005_L83.pdf|||Fri Jan 14 21:53:06 UTC 2022 | |
dc.subject.keywords | Civil, construction, and environmental engineering | |
dc.subject.keywords | Civil engineering (Civil engineering materials) | |
dc.subject.keywords | Civil engineering materials | |
dc.title | Development of self-consolidating concrete for slip form paving | |
dc.type | article | |
dc.type.genre | thesis | |
dspace.entity.type | Publication | |
thesis.degree.discipline | Civil Engineering (Civil Engineering Materials) | |
thesis.degree.level | thesis | |
thesis.degree.name | Master of Science |
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