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Investigación de vangarda para o desenvolvemento sostible

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Investigación de vangarda para o desenvolvemento sostible

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2017

González-Taboada, Iris; González-Fonteboa, Belén; Martínez-Abella, Fernando; Carro-López, Diego

Self-compacting recycled concrete: Relationships between empirical and rheological parameters and proposal of a workability box Journal Article

In: Construction and Building Materials, vol. 143, pp. 537-546, 2017, ISSN: 09500618, (cited By 29).

Abstract | Links | BibTeX | Etiquetas: Aggregates; Concretes; Mechanical properties; Recycling; Yield stress, Empirical parameters; Experimental program; Recycled coarse aggregate; Recycled concrete coarse aggregate; Rheological parameter; Rheological response; Time-dependent evolutions; Workability box, Self compacting concrete

@article{González-Taboada2017537,

title = {Self-compacting recycled concrete: Relationships between empirical and rheological parameters and proposal of a workability box},

author = {Iris González-Taboada and Belén González-Fonteboa and Fernando Martínez-Abella and Diego Carro-López},

url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85016136209&doi=10.1016%2fj.conbuildmat.2017.03.156&partnerID=40&md5=7e732bb6e374b2a917a4e93ce10b72aa},

doi = {10.1016/j.conbuildmat.2017.03.156},

issn = {09500618},

year  = {2017},

date = {2017-01-01},

urldate = {2017-01-01},

journal = {Construction and Building Materials},

volume = {143},

pages = {537-546},

publisher = {Elsevier Ltd},

abstract = {An only suitable type of self-compacting recycled concrete (SCRC) for all applications does not exist, as happens with conventional self-compacting concrete (SCC). An experimental program was carried out to evaluate workability and rheology of 49 mixes of self-compacting concrete made replacing the natural coarse aggregate by recycled concrete coarse aggregate. Workability responses included the slump flow, L-box, J-Ring and sieve segregation tests. The suitability of the limits fixed with these tests for the usual applications in SCC was discussed for SCRC. Rheological responses included the stress growth and flow curve tests. Both workability and rheological responses were compared to indicate relationships between them and in order to observe if they follow the same trend in SCRC as in conventional SCC. Finally, a workability box was proposed to describe recommended combinations of both static yield stress and plastic viscosity for SCRC at 15 min from the cement-water contact, taking into account the fulfilment of several workability limits. Also, a second box was defined at 45 min to describe the time-dependent evolution of the first one. © 2017 Elsevier Ltd},

note = {cited By 29},

keywords = {Aggregates; Concretes; Mechanical properties; Recycling; Yield stress, Empirical parameters; Experimental program; Recycled coarse aggregate; Recycled concrete coarse aggregate; Rheological parameter; Rheological response; Time-dependent evolutions; Workability box, Self compacting concrete},

pubstate = {published},

tppubtype = {article}

}