Alkaline activation of brick waste with partial addition of ordinary Portland cement (OPC) for reducing brick industry pollution and developing a feasible and competitive construction material

Cardoza, Angelica; Colorado, Henry A.

doi:10.1016/j.oceram.2024.100569

Open Ceramics

2024

DOI: 10.1016/j.oceram.2024.100569

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Alkaline activation of brick waste with partial addition of ordinary Portland cement (OPC) for reducing brick industry pollution and developing a feasible and competitive construction material

Angelica Cardoza,

Henry A. Colorado

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Cited by 4 publications

References 49 publications

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Compressive behavior of yellow bamboo stalks (Phyllostachys aurea species) and their composites when filled with epoxy resin

Colorado,

Rebellon,

Marroquín

et al. 2024

Adv Compos Hybrid Mater

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Compressive behavior of yellow bamboo stalks (Phyllostachys aurea species) and their composites when filled with epoxy resin

Colorado,

Rebellon,

Marroquín

et al. 2024

Adv Compos Hybrid Mater

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Biofunctionalized Waste Brick Powder to Enhance Performance of Blend Cement Mortar

Pan,

Cui,

Zhang

2024

Advances in Civil Engineering

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Utilizing waste brick powder (BP) as an alternative binder in cementitious materials is a low‐cost option for recycling waste BP. However, the degradation of concrete properties triggered by the low activity of brick dust is still a widespread concern. Hence, this study utilizes plant‐based tannic acid (TA) to modify BP, enhancing its surface activity and achieving high‐value utilization of the BP. The research content involves studying the physicochemical changes on the surface of modified BP and analyzing its impact on the mechanical properties of mortar at macroscopic and microscopic scales. The study shows that TA mainly adheres to the BP surface through O─C═O and C─OH bonding and in situ chelates with calcium elements to form nanoscale microcrystals (as evidenced by X‐ray photoelectron spectroscopy (XPS), atomic force microscopy (AFM), and scanning electron microscopy (SEM) tests). These phenolic hydroxyl groups and nano‐microcrystals collectively regulate cement hydration, resulting in a dense pore structure and a homogeneous BP‐paste hydration interface (as confirmed by nanoindentation tests), optimizing the mechanical and shrinkage properties of the mortar. BP modified with 0.1% TA showed a 26.32% increase in compressive strength and a 15.64% increase in flexural strength at 28 days, with a 25.08% reduction in shrinkage after 90 days. These findings provide a possibility for the preparation of excellent performance of BP concrete and realize the efficient application of BP.

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Sustainable Alkali-Activated Self-Compacting Concrete for Precast Textile-Reinforced Concrete: Experimental–Statistical Modeling Approach

Kryzhanovskyi,

Orlowsky

2024

Materials

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Industrial and construction wastes make up about half of all world wastes. In order to reduce their negative impact on the environment, it is possible to use part of them for concrete production. Using experimental–statistical modeling techniques, the combined effect of brick powder, recycling sand, and alkaline activator on fresh and hardened properties of self-compacting concrete for the production of textile-reinforced concrete was investigated. Experimental data on flowability, passing ability, spreading speed, segregation resistance, air content, and density of fresh mixtures were obtained. The standard passing ability tests were modified using a textile mesh to maximize the approximation to the real conditions of textile concrete production. To determine the dynamics of concrete strength development, compression and flexural tests at the ages of 1, 3, 7, and 28 days and splitting tensile strength tests of 28 days were conducted. The preparation technology of the investigated modified mixtures depending on the composition is presented. The resulting mathematical models allow for the optimization of concrete compositions for partial replacement of slag cement with brick powder (up to 30%), and natural sand with recycled sand (up to 100%) with the addition of an alkaline activator in the range of 0.5–1% of the cement content. This allows us to obtain sustainable, alkali-activated high-strength self-compacting recycling concrete, which significantly reduces the negative impact on the environment and promotes the development of a circular economy in the construction industry.

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Alkaline activation of brick waste with partial addition of ordinary Portland cement (OPC) for reducing brick industry pollution and developing a feasible and competitive construction material

Cited by 4 publications

References 49 publications

Compressive behavior of yellow bamboo stalks (Phyllostachys aurea species) and their composites when filled with epoxy resin

Compressive behavior of yellow bamboo stalks (Phyllostachys aurea species) and their composites when filled with epoxy resin

Biofunctionalized Waste Brick Powder to Enhance Performance of Blend Cement Mortar

Sustainable Alkali-Activated Self-Compacting Concrete for Precast Textile-Reinforced Concrete: Experimental–Statistical Modeling Approach

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