Influence of incorporation and dimension of expanded polystyrene on lightweight concrete
Guilherme S. Araujo, Lui C. Iwamoto, Rosa C. C. Lintz, Luisa A. Gachet
ARTIGO
Inglês
Agradecimentos: This study was financed in part by the Higher Education Personnel Improvement Coordination – CAPES - Brazil – Finance Code 001. The authors thank the National Council for Scientific and Technological Development – CNPq (Process 309409/2017-9) and São Paulo Research Foundation –...
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Agradecimentos: This study was financed in part by the Higher Education Personnel Improvement Coordination – CAPES - Brazil – Finance Code 001. The authors thank the National Council for Scientific and Technological Development – CNPq (Process 309409/2017-9) and São Paulo Research Foundation – FAPESP (Process: 2018/12076-5), and the National Council for Scientific and Technological Development -(CNPq Process 311009/2017-4 and Process: 406234/2018-3) and São Paulo Research Foundation – FAPESP (Process: 2018/14945-0) for support in the research
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Abstract: For the production of this lightweight concrete, expanded polystyrene (EPS) associated with expanded clay sintered lightweight aggregates were used to replace nature aggregates. Materials characterization tests were performed, as well as tests of the concrete in the fresh and hardened...
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Abstract: For the production of this lightweight concrete, expanded polystyrene (EPS) associated with expanded clay sintered lightweight aggregates were used to replace nature aggregates. Materials characterization tests were performed, as well as tests of the concrete in the fresh and hardened state. It is worth noting that the fresh tests displayed that the EPS concretes produced met the requirements of ABNT NBR 15823-1: 2017, classifying them as self-compacting. The hardened concrete tests observed the compressive strength, tensile strength, water absorption, void index, and specific mass. All concretes achieved resistances above 20 MPa, considered structural, and presented low specific mass, below 2000 kg/m3, classifying them as light concrete. Scanning electron microscopy (SEM) images allowed a better understanding of the microstructure, justifying the mechanical results obtained. The transition zone between the cement paste and the light aggregates, the number of voids in the cement paste, and the appearance of microcracks were considered
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CONSELHO NACIONAL DE DESENVOLVIMENTO CIENTÍFICO E TECNOLÓGICO - CNPQ
309409/2017-9; 311009/2017-4; 406234/2018-3
COORDENAÇÃO DE APERFEIÇOAMENTO DE PESSOAL DE NÍVEL SUPERIOR - CAPES
FUNDAÇÃO DE AMPARO À PESQUISA DO ESTADO DE SÃO PAULO - FAPESP
2018/12076-5; 2018/14945-0
Fechado
Influence of incorporation and dimension of expanded polystyrene on lightweight concrete
Guilherme S. Araujo, Lui C. Iwamoto, Rosa C. C. Lintz, Luisa A. Gachet
Influence of incorporation and dimension of expanded polystyrene on lightweight concrete
Guilherme S. Araujo, Lui C. Iwamoto, Rosa C. C. Lintz, Luisa A. Gachet
Fontes
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ACI materials journal v. 118, n. 1, p. 79-90, Jan. 2021 |