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ISSN: 2637-4595

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Research Article(ISSN: 2637-4595)

Cement Slabs and Pavers with Incorporation of Waste Selective Collection the City of Blumenau, SC

Volume 3 - Issue 4

João Marcos Bosi Mendonça de Moura1, Rafael Reis2, Samantha May2* and Ivone Gohr Pinheiro1

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    • 1Department of Graduate Program in Environmental Engineering, Regional University Foundation of Blumenau, Brazil
    • 2Department of Civil Engineering Course, Regional University Foundation of Blumenau, Brazil

    *Corresponding author: Samantha May, Department of Civil Engineering Course, Regional University Foundation of Blumenau, Brazil

Received: September 29, 2019;   Published: October 31, 2019

DOI: 10.32474/LTTFD.2019.02.000168

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Abstract

This project analyzed the physical-mechanical performance of plates and pavers with the incorporation of waste originated from the sorting process in the city of Blumenau, SC, Brazil. The waste consisted of organic waste, polymers, paper, glass and textile materials which were reduced in size (2.4mm to 19.0mm) and then used to replace natural aggregate at different ratios: 5%, 10%, 20% and 30%. The consistency of the fresh mortar and the physical-mechanical indices, the apparent specific gravity, water absorption and compressive strength of the hardened mortar were determined. Scanning electron microscopy analysis and flexural strength tests were also conducted. The bulk density of the plates and pavers ranged from 0.8 to 1.6g.cm-3 and 1.78 to 1.84g.cm-3 respectively. In the case of low incorporation of waste, both materials presented water absorption results that meet the requirements of correlated standards. The plates presented compressive strength values ranging from 4.7MPa to 14.6MPa. Flexural strength results reached values between 0.1MPa and 1.8MPa. The pavers achieved compressive strength values between 10.8MPa and 18.7MPa. Pavers with 5% incorporation of waste aggregates could be used in sidewalks and curbs, as long as future studies are able to demonstrate their durability.

Summary

Analisou the physical-mechanical performance of slabs and pavers with the incorporation of tailings from the selective collection of the municipality of Blumenau, SC. Such tailings are composed of organics, polymers, papers, glass and textiles, which have been reduced in size (2.4mm to 19.0mm) and have replaced the natural fine aggregate by 5%, 10%, 20% and 30%. %. For the composite in the fresh state the consistency index was verified, and in the hardened state apparent specific mass, water absorption and compressive strength were determined. The plates were subjected to flexural strength testing and scanning electron microscopy analysis. The apparent specific mass of the plates ranged from 0.8 to 1.6g.cm-3 and the pavers from 1.78 to 1.84g.cm-3. For smaller amounts of incorporated tailings, both materials presented water absorption rates that meet the requirements of related standards. The plates presented compressive strength values ranging from 4.7 MPa to 14.6MPa. In flexion, the values reached were from 0.1MPa to 1.8MPa. The pavers achieved compressive strength values between 10.8MPa and 18.7MPa. Pavers with 5% incorporation of tailings aggregates would be applicable to sidewalks and curbs as long as future studies guarantee their durability.

Keywords: Recycling; Waste building materials; Waste Construction materials

Abstract| Introduction| Methodology| Tailings Aggregates| Traces| Production of Composite| Results and Discussion| Conclusion and Recommendations| Acknowledgments| References|

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