Use of Ecofriendly Glass Powder Concrete in Construction of Wind Farms

Toro, Eva María García del; Alcala-Gonzalez, Daniel; Más-López, M. Isabel; García-Salgado, Sara; Pindado, Santiago

doi:10.3390/app11073050

Cited by 7 publications

(12 citation statements)

References 28 publications

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“…The results of the compressive strength tests of the concrete with 70% and 80% substitution of cement by glass powder are shown in Table 4. As previously observed [34], for concrete prepared with cement replaced by glass powder, the compressive strength of the concrete decreased as the amount of glass powder in the binder increased, which can be attributed to the fact that glass powder has a low pozzolanic activity at the early ages, although, in this case, the granulometry is larger and the concretes are drier and with higher air content. This causes the appearance of different C-S-H type hydrates and slower setting [31] and lower compressive strengths in the short term.…”

Section: Mechanical Properties Of Concretesupporting

confidence: 72%

“…The percentage of glass powder substitution by cement was based on the study carried out by García del Toro et al [34], who reported that concretes manufactured with a percentage of cement substitution by glass powder higher than 50% were suitable to be used as pavements. The percentages of 70% and 80% were chosen in order to reuse a greater amount of waste and contribute in a greater extent to the circular economy and environmental protection.…”

Section: Results Of the Characterization Of Concretementioning

confidence: 99%

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Application of Concretes Made with Glass Powder Binder at High Replacement Rates

et al. 2021

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Glass is a material that can be reused, except for a small part that, due to its residual characteristics, cannot be reused and becomes a nonbiodegradable waste to accumulate in landfills. The chemical composition and pozzolanic properties of waste glass are encouraging for the use of these wastes in the cement and concrete industries and for providing technically and environmentally viable solutions. In this study, we propose the production of deactivated concretes with a high content of glass powder in the binder. The substitution percentage of glass powder for cement used in this work was between 70% and 80%. Consistency, air content, bulk density, workability, compression strength, and permeability tests were performed. Regarding compressive strength, the results obtained at 90 days for percentages of cement substitution by glass powder of 70 and 80%, respectively, were 14.2 and 8.6. The chemical analysis of leachates showed concentrations of Fe, Cu, V, Ni, and Mo, in mg L−1, of 1.57, 1.38, 0.85, 0.95, and 0.44, respectively. The results obtained, compared with the relevant legislation, have proved that the inclusion of glass powder in a high percentage of substitution and with a granulometry of 20 µm in the manufacture of deactivated concretes is feasible for exterior pavements.

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Section: Mechanical Properties Of Concretesupporting

confidence: 72%

Section: Results Of the Characterization Of Concretementioning

confidence: 99%

Application of Concretes Made with Glass Powder Binder at High Replacement Rates

et al. 2021

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“…Figure 5 shows the optimal grain size curve resulting from the mixtures created. It was decided to use the theoretical Bolomey’s curve that allows one to determine the ratio between cement and water (c/w) [ 64 , 65 ]. It is possible to create a workable mixture, but surely, together with the use of fluidifying additives and indirectly with the water content of the w/c ratio, it contributes to the achievement of the required consistency class [ 47 ].…”

Section: Resultsmentioning

confidence: 99%

Petrographic and Physical-Mechanical Investigation of Natural Aggregates for Concrete Mixtures

2021

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The availability of different lithology with which concrete can be packaged could create substantial questions on the differences that they can provide to the same mixture. Different kinds of aggregates were analyzed individually to investigate their main characteristics, which allowed us to package five types of concrete mixtures. These five mixtures were compared to each other through compressive strength values. Furthermore, it was considered microscopically what possible differences could exist between these different mixtures, for example, differences in the cement/aggregate reaction. The chemical characterization of the aggregates, used as the skeleton of the cement mixes, was proposed as an important investigative phase in order to better understand the differences in the geotechnical and physical-mechanical characteristics and to verify the presence of any harmful phases for the durability of the concrete.

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“…In turn, the data of Garcia del Toro et al indicated an increase in the degree of air entrainment of the concrete mixture with an increase in the glass content. They explained this phenomenon as the retention of the air bubbles by the surface energy of the glass being greater the finer the glass grains are [53]. However, Seong Kyum et al found a decrease in air content in concrete mixtures made with waste LCD glass [54].…”

Section: Discussionmentioning

confidence: 99%

Analysis of the Influence of PET and Glass Packaging Waste Materials on the Physical and Mechanical Properties of Cementitious Composites

Zapała-Sławeta,

Mazurek,

Woś

2023

Applied Sciences

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The limited availability of natural resources, such as sand, and the need to reduce CO2 emissions, which are produced in large quantities in the production of binding materials, indicate the need to look for alternative raw materials used in construction materials. At the same time, there is a strong need to utilise waste packaging materials, the global production of which is constantly increasing. This work aims to investigate the possibility of using recycled polyethylene terephthalate (PET), utilised as a partial substitute for fine aggregate, and waste glass, implemented as powder, serving as a partial substitute for cement in the manufacturing of the cementitious composites. An experimental study was carried out to evaluate the physical and mechanical properties of the resultant cementitious composites. The incorporated PET aggregate comprised 0%, 5%, and 10% by volume of silica sand and 0%, 10%, and 20% glass powder by weight of cement. The addition of waste raw materials augmented the flow of fresh mortars, predominantly subsequent to the introduction of PET recyclate. The deployment of artificial aggregate in mortars induces a decrease in the volumetric density. Concurrently, the mechanical properties of mortars enriched with waste materials exhibited a reduction, in terms of both compressive and flexural strength, with the detriment escalating in conjunction with the content of waste raw materials. An analysis of statistical significance of effects, grounded in an analysis of variance, is delineated within this document, pinpointing the quantities of waste raw materials that can be assimilated in mortars without inducing a substantial deterioration of strength properties. Through studies on phase composition, it has been demonstrated that the utilised glass waste, possessing a grain size analogous to cement, exhibited poor pozzolanic properties. The test results indicate that it is possible to partially replace cement with glass powder, up to 10%, and fine aggregate with PET waste, up to 5%, without a significant reduction in the mechanical properties of the material.

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Use of Ecofriendly Glass Powder Concrete in Construction of Wind Farms

Cited by 7 publications

References 28 publications

Application of Concretes Made with Glass Powder Binder at High Replacement Rates

Application of Concretes Made with Glass Powder Binder at High Replacement Rates

Petrographic and Physical-Mechanical Investigation of Natural Aggregates for Concrete Mixtures

Analysis of the Influence of PET and Glass Packaging Waste Materials on the Physical and Mechanical Properties of Cementitious Composites

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