ARGAMASSAS AUTONIVELANTES PARA PISOS: CONTRIBUIÇÃO DOS FINOS RESIDUAIS

Autores

  • Henrique Duarte Sales Carvalho
  • Malik Cheriaf
  • Janaíde Cavalcante Rocha

DOI:

https://doi.org/10.46421/entac.v17i1.1718

Palavras-chave:

Self-levelling, Shrinkage, Residuals Fines

Resumo

Self-levelling mortar are a fluid product that has as a low viscosity and high fluidity. This mortars requires no vibration and levelling, having very low thickness (30 mm). The purpose of this study was to evaluate fresh properties of self-levelling SLU using three by-products: bottom-ashes, fine elements of quarry limestone and fine elements from recycled-concretewaste. Portland Cement OPC was partially replaced by 0,10%, 15% e 20% of fines. The water/binder was fixed at 0.50 and mix proportion 1:2 cement and sand (by weight) was used. Fresh properties were examined: flow, plastic shrinkage and curling. The curling phenomenon is high (more than 1,70 mm to mortar based on fine from recycled concrete waste). Higher early curling was obtained to mortar with quarry limestone. A good performance could be assured with ternary mixes with bottom ashes (curling less than 1mm).

Referências

ACHE, Use of recycled aggregates for production of structural concrete. AsociaciónCientífica del Hormigón Estructural, Madrid, 2005 (in Spanish).

AENOR, EHE-08 regulation of structural concrete, Spain, 2008 (in Spanish).

ALRIFAI, A.; AGGOUN, S.; KADRI, A.; KENAI, S.; KADRI, E.H. Paste and mortar studies onthe influence of mix design parameters on autogenous shrinkage of self-compactingconcrete. Construction and Building Materials, v. 47, p. 969-976, 2013.

ANDRADE, L.B.; ROCHA, J.C.; CHERIAF, M. Influence of coal bottom ash as fineaggregate on fresh properties of concrete. Construction and Building Materials, v. 23,p. 609-614, 2009.

EFNARC European Federation for Especialist Construction and Concrete Systems.

Specification and guidelines for self-compacting concrete. In, EFNARC, 2002.

GEORGIN, J.F.; AMBROISE, J.; PÉRA, J.; REYNOUARD, J.M. Development of selflevelingscreed based on calcium sulfoaluminate cement: modelling of curling dueto drying. Cement & Concrete Composites, v.30, p. 769 778, 2008.

LÓPEZ,D.C.; FONTEBOA B. G.; BRITO J.; ABELLA, F. M.; TABOADA, I.G.; SILVA, S. Study ofthe rheology of self-compacting concrete with fine recycled concrete aggregates.

Construction and Building Materials. v. 96, p. 491-501, 2015.

MEHDIPOUR, I.; RAZZAGUI,M.S.; AMINI, K.; SHEKARCHI, M. Effect of mineral admixtureson fluidity and stability of self-consolidating mortar subjected to prolonged mixingtime. Construction and Building Materials, v. 40, p. 1029-1037, 2013.

ONISHI, K.; BIER, T. Investigation into relations among technological properties,hydration kinetics and early age hydration of self-leveling underlayments. Cementand Concrete Research, v.40, p. 1034-1040, 2010.

SEIFERT, S.; NEUBAUER, J.; NEUNHOEFFER, F.G. Spatially resolved quantitative in-situphase analysis of a self-leveling compound. Cement and Concrete Research, v.42,p. 919-927, 2012.

WYRZYKOWSKI, M.; GHOURCHIAN, S.; SINTHUPINYO, S.; CHITVORANUND, N.;CHINTANA, T.; LURA, P. Internal curing of high performance mortars with bottom ash.

Cement & Concrete Composites, v. 71, p. 1 9, 2016.

ZHAO, Z,; REMOND, S.; Damidot, D.; Xu, W. Influence of fine recycled concreteaggregates on the properties of mortars. Construction and Building Materials, v.81,p.179-186, 2015.

Downloads

Publicado

2018-11-12

Como Citar

CARVALHO, Henrique Duarte Sales; CHERIAF, Malik; ROCHA, Janaíde Cavalcante. ARGAMASSAS AUTONIVELANTES PARA PISOS: CONTRIBUIÇÃO DOS FINOS RESIDUAIS. In: ENCONTRO NACIONAL DE TECNOLOGIA DO AMBIENTE CONSTRUÍDO, 17., 2018. Anais [...]. Porto Alegre: ANTAC, 2018. p. 3003–3011. DOI: 10.46421/entac.v17i1.1718. Disponível em: https://eventos.antac.org.br/index.php/entac/article/view/1718. Acesso em: 22 dez. 2024.

Edição

Seção

(Inativa) Tecnologias de Sistemas e Processos Construtivos

Artigos Semelhantes

Você também pode iniciar uma pesquisa avançada por similaridade para este artigo.