Recycled lightweight concrete made from footwear industry waste and CDW

Lima, Paulo Roberto Lopes; Leite, Mônica Batista; Santiago, Ediela Quinteiro

doi:10.1016/j.wasman.2010.02.007

Cited by 63 publications

(63 citation statements)

References 20 publications

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“…Several studies have been conducted aiming the reduction of environmental impacts caused by leather and footwear production. Among the main solutions cited in the literature, we may cite: carbon footprint analysis (Herva et al, 2011), recycling polymer waste generated during production (Lima et al, 2010), development of waste management plan (Staikos and Rahimifard, 2007a), sustainable product development based on the "cradle to cradle" system (Jaques et al, 2010), post-consumption waste management (Staikos and Rahimifard, 2007b), footwear development from renewable material (Cao et al, 2014) among others. This wide range of studies devoted to environmental issues related to footwear production, reinforces the relevance of the subject and points to possible ways.…”

Section: Footwear Production and Waste Generation: Risks Versus Impromentioning

confidence: 99%

Analysis of footwear development from the design perspective: Reduction in solid waste generation

Ashton

2018

Strategic Design Research Journal

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Environmental quality is an increasingly discussed topic, being a global and urgent issue. Among the environmental problems, it is highlighted in this study the great generation of solid waste, especially associated with the footwear production, which is an important sector of the Brazilian economy. In this context, design is considered a potential tool to minimize the negative environmental impacts of this sector. Thus, this research aims to analyze the development and production of shoes from the sustainable design perspective to reduce the leather waste generation. Thus, a case study in a footwear company situated in the Brazilian state of Rio Grande do Sul is presented. Data was collected from in loco visit, observation and interviews. Subsequently a content analysis relating the collected data and the theoretical framework is presented. Results demonstrate that the application of concepts and strategies from sustainable design in the development and production of footwear, in the studied company, generated satisfactory results in terms of minimizing leather waste without losing competitiveness.

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Section: Footwear Production and Waste Generation: Risks Versus Impromentioning

confidence: 99%

Analysis of footwear development from the design perspective: Reduction in solid waste generation

Ashton

2018

Strategic Design Research Journal

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“…To recycled concrete, a minor influence of addition of recycled aggregate on compressive strength with increment of w/c ratio is also observed. For concretes with a w/c ratio equal to 0.82, the cement matrix around the aggregate particles has a lower compressive strength than the matrix of concrete with a w/c ratio equal to 0.49 that presented rupture by breakage of the aggregate [12]. Corinaldesi and Moriconi [6] associate the increment of strength of recycled mortar to the shape of aggregate particles that contributes to improving bond strength at the interface between aggregate and surrounding cement paste.…”

Section: Compressive Strength Absorption Rate and Voidsmentioning

confidence: 99%

Influence of CDW Recycled Aggregate on Drying Shrinkage of Mortar

Lima¹,

Leite²

2012

OJCE

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The use of fine recycled aggregates as raw material in the production of mortars appears as a good alternative to minimize waste disposal, so as to reduce natural resources consumption and to find and supply suitable substitutes for natural aggregates. However, the use of this alternative material in a safe way must be carried out by a wide investigation of its long term behavior. In this way, this paper will examine the mechanical strength, physical properties and drying shrinkage of mortar, which use recycled fine aggregates that have originated from construction and demolition waste (CDW) containing mortar (55%), ceramic (26%) and concrete (16%). Two natural mortars, made with natural sand, were produced with cement/sand ratios of 1:4 and 1:8 (by weight) and a fixed consistency index of 260  10 mm. Recycled mortar was produced with 50% of substitution rate, in volume, of natural aggregate by recycled one. Results show that recycled mortars present higher total porosity, absorption rate and drying shrinkage than reference mortar.

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“…Other studies are focused on the generation, characterization, and management of CDW [4,5]. To develop new products, several studies have been conducted on the incorporation of CDW: in clays for the ceramic bricks manufacture [6,7], concrete [8][9][10], concrete paving [11], for masonry and mortars artifacts [4,12,13]. These studies show the influence of the added volume, particle size and CDW composition on the final properties of the materials produced.…”

Section: Introductionmentioning

confidence: 99%

Construction and demolition waste in concrete: property of pre-molded parts for paving

2019

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Construction and demolition waste (CDW) production is a growing factor on a global scale and its incorrect disposal becomes an increasingly common problem in cities. It is estimated to represent, on average, 50% of the urban solid waste mass in the world. In this sense, an alternative to the destination is their reuse. In this work, the properties of interlocking concrete pieces for paving with the CDW in substitution to large aggregates were analyzed. The substitution occurred in fractions from 20 to 100 wt% of CDW in cylindrical test specimens to find the ideal substitution content, so that to prepare pre-molded concrete blocks. The piece properties obtained were analyzed according to Brazilian standards for compressive strength and water absorption. Therefore, the influence of the residue incorporation in the pieces, from the technical viewpoint, was verified. The sample that presented the best performance had a substitution of 20% of the natural aggregate by crushed CDW.

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Recycled lightweight concrete made from footwear industry waste and CDW

Cited by 63 publications

References 20 publications

Analysis of footwear development from the design perspective: Reduction in solid waste generation

Analysis of footwear development from the design perspective: Reduction in solid waste generation

Influence of CDW Recycled Aggregate on Drying Shrinkage of Mortar

Construction and demolition waste in concrete: property of pre-molded parts for paving

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