Investigation of pozzolanic activity of recycled concrete powder: Effect of cement fineness, grain size distribution and water/cement ratio

Kaya, Yahya; Aytekin, Burcu; Kaya, Tuğçe; Mardani‐Aghabaglou, Ali

doi:10.1016/j.matpr.2023.03.137

Cited by 7 publications

(1 citation statement)

References 26 publications

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“…Much research remains to be done to understand and optimize the use of ground recycled concrete as a binder in compressed earth blocks, since most of the work focuses on mortars and concrete manufacturing [19][20][21][22][23]. In this paper we focus on the ability of CEB to contain a considerable proportion of GRC evaluated in responses to damage-producing loads.…”

Section: Introductionmentioning

confidence: 99%

CEBs with GRC: Fabrication, characterization, modeling, and correlation with microstructural fracture features

Valenzuela,

Leiva,

Salas

et al. 2023

Materials Today Communications

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Section: Introductionmentioning

confidence: 99%

CEBs with GRC: Fabrication, characterization, modeling, and correlation with microstructural fracture features

Valenzuela,

Leiva,

Salas

et al. 2023

Materials Today Communications

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Innovative lightweight concrete: effect of fiber, bacteria and nanomaterials

Beytekin,

Biricik Altun,

Mardani

et al. 2024

Iran Polym J

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It was reported that various studies have been carried out to increase the strength, permeability and durability performances of lightweight concrete (LC) mixtures. Extensive research was carried out on the production of sustainable and ecologic LC. In this context, the use of various innovative materials and methods have been demonstrated. In this direction, increasing the service life of concrete produced by the use of fiber, nanomaterials and self-healing with bacteria is one of the applied methods. In this study, the effects of the use of fiber, nanomaterials and bacteria on the workability, unit weight, strength, toughness, modulus of elasticity, impact resistance, permeability, drying-shrinkage, freeze–thaw, high temperature resistance, thermal conductivity performance of LC mixtures have been compared in detail. It was reported that workability, specific gravity, permeability, thermal conductivity and drying-shrinkage values decrease, while strength, high temperature resistance, freeze–thaw resistance and toughness performance increase with the addition of fiber and nanomaterials to LC mixtures. While it was emphasized that the strength and permeability performance and elasticity modulus values of the mixtures increased with the addition of bacteria. In addition, the use of fiber has insignificant effect in terms of the modulus of elasticity. Graphical abstract

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Experimental study of the effect of senilia senilis as a partial replacement for cement in concrete production: towards sustainable construction materials

Bamigboye,

Obozokhae,

Olaoye

et al. 2024

Discov Mater

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The world today, is plagued by several environmental problems including air pollution and global warming. These aforementioned environmental problems are prominently associated with the consumption of natural resources in manners that have proven to be unsustainable. The construction industry has been seen to play a major role in contributing to the natural resources consumption and environmental problems, at large. Cement production brings about the emission of toxic gases that pollute the atmosphere, thereby promoting these environmental problems. Consequently, concrete technology findings have been directed toward realizing alternative sustainable materials for utilization in the construction industry. Seashell waste has proven promising in the partial replacement of cement in concrete. This study had carried out experimental investigations on senilia senilis shell as a partial cement replacement material in concrete production. The senilia senilis shell was crushed into senilia senilis powder (SSP), processed, and utilized to partially replace cement at 10%, 20%, 30%, 40%, 50%, and 60% in concrete. Fineness, Initial and final setting, and specific gravity tests were carried out on seashell powder to ascertain its suitability for cement replacement. Physical and mechanical tests were carried out on the concrete samples produced. The mechanical properties of the various concrete specimens were also analyzed in this study. Also, the elemental composition and morphological analysis of the SSP and the various concrete specimens were examined in this study with the use of a Scanning Electron Microscope (SEM) and energy-dispersive X-ray (EDX). The results of this study indicate that SSP concrete at 10% to 20% replacement of cement, can be utilized for various mix ratios in the construction industry.

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Investigation of pozzolanic activity of recycled concrete powder: Effect of cement fineness, grain size distribution and water/cement ratio

Cited by 7 publications

References 26 publications

CEBs with GRC: Fabrication, characterization, modeling, and correlation with microstructural fracture features

CEBs with GRC: Fabrication, characterization, modeling, and correlation with microstructural fracture features

Innovative lightweight concrete: effect of fiber, bacteria and nanomaterials

Experimental study of the effect of senilia senilis as a partial replacement for cement in concrete production: towards sustainable construction materials

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