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Relação entre a performance de placas de concreto permeável com escória de aciaria e as propriedades de forma de agregados graúdos (Relationship between the performance of pervious concrete slabs with steel slag and the shape properties of coarse aggregat

Author(s): ORCID
ORCID
ORCID
ORCID
ORCID
Medium: journal article
Language(s): Portuguese
Published in: Revista IBRACON de Estruturas e Materiais, , n. 5, v. 17
DOI: 10.1590/s1983-41952024000500001
Abstract:

The growth of cities affects their permeable surface, which can unbalance hydrological cycles. The pervious concrete can be a viable solution to combat urban environmental impacts in this subject. This type of concrete can be told apart by the presence of interconnected pores and its drainage capacity. This paper aims to analyze the relationship between aggregate shape, mechanical resistance, and permeability of pervious concrete slabs containing steel slag. A Digital Image Processing (DIP) based method was used to measure aggregate shape properties. Three different mixes, using three types of coarse aggregate (gravel 12.5 mm, gravel 9.5 mm, and coarse steel slag), and a type of fine aggregate (fine slag) were tested, and flexural strength, flow, and permeability coefficients were obtained for the slabs. Results showed the potential of using steel slag, with higher flexural strength results (4.61 MPa). Indications of the relationship between aggregate shape parameters and slab properties were determined, with more polished, more angular, and more spherical material resulting in higher flexural strength values and lower permeability coefficient. The inverse relationship between the slabs’ permeability parameters and flexural strength was observed.

Structurae cannot make the full text of this publication available at this time. The full text can be accessed through the publisher via the DOI: 10.1590/s1983-41952024000500001.
  • About this
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  • Reference-ID
    10756520
  • Published on:
    08/01/2024
  • Last updated on:
    08/01/2024
 
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