Performance evaluation of concrete incorporating glass powder and glass sludge wastes as supplementary cementing material

Lee, Hyeongi; Hanif, Asad; Usman, Muhammad; Sim, Jongsung; Oh, Hongseob

doi:10.1016/j.jclepro.2017.09.133

Cited by 194 publications

(101 citation statements)

References 29 publications

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“…O vidro moído em pó possui grande potencial de utilização como material pozolânico [3]- [7]. Esse é um material de fácil acesso e disponibilidade e, por exemplo, no Brasil cerca de 980 mil toneladas de vidro são produzidas por ano, e 53% dessa produção não é reciclada [8].…”

Section: Introductionunclassified

Compósitos cimentícios de ultra alto desempenho com a incorporação de diversos teores de pó de vidro

Soares¹,

Júnior²,

Freitas³

et al. 2019

Simpósio Paranaense De Patologia Das Construções

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Os compósitos cimentícios, especialmente os de ultra alto desempenho, são materiais de grande resistência mecânica que têm em sua composição materiais cimentícios suplementares com a finalidade de diminuir o impacto ambiental provocado pela produção do cimento Portland. O pó de vidro pode ser considerado um material cimentício suplementar devido à sua composição rica em sílica amorfa e, pode ser amplamente utilizado como substituição parcial do cimento Portland no concreto. Assim, o objetivo deste trabalho é avaliar a influência da substituição do cimento Portland por diferentes teores de pó de vidro no comportamento físico e mecânico de um compósito cimentício elaborado para ser utilizado no reparo de estruturas de concreto armado, proporcionando uma opção de destinação adequada para o resíduo de vidro. Para tanto, foram produzidos compósitos cimentícios com consumo de cimento de 1000 kg/m³ com a substituição de 10%, 20%, 30% e 50% em volume do cimento por pó de vidro finamente moído (<75μm). Foram avaliados a massa específica e teor de ar incorporado no estado fresco, resistência à compressão simples, resistência à tração por compressão diametral, módulo de elasticidade dinâmico e absorção de água. As propriedades mecânicas foram determinadas e comparadas com a composição de referência, sem utilização de vidro moído. Os resultados demonstram que o uso do pó de vidro em substituição ao cimento Portland não altera significativamente as propriedades analisadas na idade de 28 dias. Palavras-chave: Compósito cimentício, ultra alto desempenho, pó de vidro Abstract: Cementitious composites, especially those of ultra-high performance, are high mechanical strength materials composed of supplementary cementitious materials in order to reduce the environmental impact caused by the production of Portland cement. Glass powder may be considered a supplementary cementitious material due to its composition rich in amorphous silica, and this material can be used as a partial substitution of Portland cement in concrete. Therefore, this work aims to assess the influence of partial substitution of Portland cement by different contents of glass powder on a cementitious composite designed to be used in reinforced concrete structures repair, providing a suitable destination for glass waste. In this work cementitious composites produced with cement content of 1000 kg/m³, with substitutions of 10%, 20%, 30% and 50 % by volume of finely ground glass (<75μm). Was evaluated the specific gravity and air content in fresh state, axial compression strength tensile splitting strength dynamic elasticity modulus, and water absorption of the mechanical properties were evaluated and compared with reference mix without using ground glass. The results indicate the use of glass powder as substitution of Portland cement does not significantly affect the properties analyzed at 28 days.

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Section: Introductionunclassified

Compósitos cimentícios de ultra alto desempenho com a incorporação de diversos teores de pó de vidro

Soares¹,

Júnior²,

Freitas³

et al. 2019

Simpósio Paranaense De Patologia Das Construções

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show abstract

“…The use of glass in Portland cement composites requires special care, since the alkali-silica reaction may occur and cause cracks in the cementitious compounds (12,13). However, depending on the particle size, the glass may instead exhibit pozzolanic activity and thus inhibit the alkali-aggregate reaction (14)(15)(16). Some studies investigated the effect of glass microparticles on the properties of Portland cement composites and indicated that glass did not affect the setting time, soundness, and flexural strength of the material (15,17,18); however, it did have a negative effect on the workability (15,19).…”

Section: Introductionmentioning

confidence: 99%

Influence of soda-lime waste glass microparticles on workability and thermal properties of portland cement compounds

et al. 2019

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Numerous studies have investigated the use of waste glass as a partial substitution in Portland cement. Nonetheless, it seems there is no consensus about the influence of particle size and color on the behavior of the compounds. This work investigates the influence of soda-lime glass microparticles on the properties of cement and mortar in both fresh and hardened states. The effects of partial substitution (10 and 20%) of the cement by colorless and amber glass particles with dimensions of approximately 9.5 mm were investigated. The results revealed that the substitutions did not significantly affect the setting times, nor the mechanical properties of mortar at longer curing times. The influence of glass content and chemical composition on workability and hydration heat was also observed. The waste glass samples showed lower thermal diffusivity than the control sample. Thermal emissivity was not influenced by the presence of glass microparticles.

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“…To avoid this, the glass should have a maximum grain size of 0.3 mm. On the contrary, ground glass helps to suppress the alkali-silica reaction because finely ground glass exhibits pozzolanic reaction, consumes portlandite to form calcium hydro silicate (CSH) phases that envelop the reaction edge of glass grains, and reduces monosulfate levels (Zheng, 2016;Lee, Hanif, Usaman, Sim, & Oh, 2018). In the case of AAC, this 62 condition also applies.…”

Section: Introductionmentioning

confidence: 99%

Study of the influence of the secondary raw materials on microstructure and properties of calcium silicate composite

Húšťavová

Černý

Drochytka

2019

Modern Building Materials, Structures and Techniques (MBMST)

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Calcium silicate composites are a widely used building material, especially autoclaved aerated concrete or sand-lime bricks. The physico-mechanical properties of these materials depend on their microstructure. Microstructure is characterized by the content of crystalline calcium silicate compounds that arise during autoclaving. This is in particular the tobermorite mineral, which carries the mechanical strength of the composite. This paper focuses on the influence of secondary raw materials on properties and microstructure of the calcium silicate composite. Secondary raw materials were selected as slag from the combustion of lignite and ground glass. Mixtures of composites were selected with respect to the required C/S molar ratio of 0.73. The hydrothermal treatment was carried out at a temperature of 190 °C and a residence time of 4, 8 and 16 hours. The microstructure of calcium silicate composites and autoclaved aerated concrete was studied. The use of slag resulted in an increase in the intensity of the diffraction line of tobermorite by X-ray diffraction analysis as well as the use of glass. The difference was particularly evident in the shape of the tobermorite crystals. Long strong crystals were detected in the sample with slag, while the sample with glass exhibited low tobermorite leaves. Porous structure of autoclaved aerated concrete with slag was uniform, unlike samples with glass. Both materials have a positive effect on the increase in compressive strengths of the samples.

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Performance evaluation of concrete incorporating glass powder and glass sludge wastes as supplementary cementing material

Cited by 194 publications

References 29 publications

Compósitos cimentícios de ultra alto desempenho com a incorporação de diversos teores de pó de vidro

Compósitos cimentícios de ultra alto desempenho com a incorporação de diversos teores de pó de vidro

Influence of soda-lime waste glass microparticles on workability and thermal properties of portland cement compounds

Study of the influence of the secondary raw materials on microstructure and properties of calcium silicate composite

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