Natural zeolite as a supplementary cementitious material – A holistic review of main properties and applications

Shekarchi, Mohammad; Ahmadi, Babak; Azarhomayun, Fazel; Shafei, Behrouz; Kioumarsi, Mahdi

doi:10.1016/j.conbuildmat.2023.133766

Cited by 25 publications

(5 citation statements)

References 126 publications

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“…This indicates that zeolite powder reduces the workability of recycled concrete. The main reason for this is the high porosity of zeolite powder, which absorbs water in the concrete, and the large surface area of zeolite powder, which increases the inter-particle viscosity [ 27 ]. Additionally, in this study, all ZPRCs with different dosages of zeolite powder had the same dosage of water reducer, which resulted in increases in concrete viscosity as the zeolite powder dosage increased.…”

Section: Resultsmentioning

confidence: 99%

“…Natural zeolite powder has been used to improve the various properties of concrete due to its characteristics of low carbon environmental protection [ 27 ], cation adsorption [ 28 , 29 ], and internal curing [ 30 ]. Studies have shown that different types of zeolite powders have a similar effect to ordinary pozzolanic materials in concrete [ 31 ].…”

Section: Introductionmentioning

confidence: 99%

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Freeze–Thaw Cycle Durability and Mechanism Analysis of Zeolite Powder-Modified Recycled Concrete

Yu,

Zhang,

Cao

et al. 2024

Materials

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The inferior mechanical performance and freeze–thaw (FT) resistance of recycled concrete are mostly due to the significant water absorption and porosity of recycled coarse particles. In this study, different dosages of zeolite powder were used in recycled concrete. A series of macroscopic tests were used to evaluate the workability and FT durability of zeolite powder-modified recycled concrete (ZPRC). X-ray diffraction (XRD) and scanning electron microscopy (SEM) were used to reveal the micro-mechanisms of FT resistance in ZPRC. The results show that the increase in zeolite powder content leads to a decrease in the slump and water absorption of ZPRC. Additionally, ZPRC with 10% zeolite powder has superior mechanical characteristics and tolerance to FT conditions. The higher strength and FT resistance of the ZPRC can be attributed to the particle-filling effect, water storage function, and pozzolanic reaction of zeolite powder, which results in a denser microstructure. The particle-filling effect of zeolite powder promotes the reduction of surface pores in recycled coarse aggregates (RCAs). The water storage function of zeolite powder can provide water for the secondary hydration of cement particles while reducing the free water content in ZPRC. The pozzolanic reaction of zeolite powder can also promote the generation of hydrated calcium silicate and anorthite, thereby making the microstructure of ZPRC more compact. These results provide theoretical guidance for the engineering application of recycled concrete in cold regions.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Freeze–Thaw Cycle Durability and Mechanism Analysis of Zeolite Powder-Modified Recycled Concrete

Yu,

Zhang,

Cao

et al. 2024

Materials

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“…According to a recent study [63], the research works investigating the use of natural zeolites in cement-based materials originate from various countries and employ various sources of zeolites. Although the chemical composition is mainly the same, there are small variations between the percentages of various components that may lead to different, sometimes contradictory, results.…”

Section: Discussionmentioning

confidence: 99%

“…These benefits can be further enhanced when using natural zeolites together with other pozzolanic materials [48,49]. Nowadays, continuous advancements and technological breakthroughs offer the opportunity to combine natural zeolites with carbon nano-tubes and other nano materials [63].…”

Section: Discussionmentioning

confidence: 99%

The Use of Natural Zeolites in Cement-Based Construction Materials—A State of the Art Review

Alexa-Stratulat,

Olteanu,

Toma

et al. 2023

Coatings

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Natural zeolite is a honeycomb-structured aluminosilicate mineral with an open crystalline structure which makes it suitable for a variety of applications. Given the beneficial effects of zeolites on the properties of cementitious materials, the present paper aims to summarize the recent findings reported in the scientific literature on the use of zeolites in cement-based construction materials. This paper limits the analysis to natural zeolites. The influence of natural zeolites on the workability and setting time of cement-based construction materials revealed that increasing the zeolite content led to a reduction in workability compared to the control mixes. At the same time, the initial and final setting times of cement pastes showed a decreasing trend with an increase in the replacement percentage. The slow pozzolanic reaction of clinoptilolite zeolite results in lower flexural strength and compressive strength values of mortars at the age of 28 days. Blending zeolites with other supplementary cementitious materials resulted in improved values of the mechanical properties of mortar and concrete. The findings regarding the impact of zeolite on the durability of concrete suggest that zeolite shows promise as a viable alternative to cement, with positive effects on various aspects of durability. The majority of the durability factors are interconnected. The presence of conflicting findings is particularly significant in this context, highlighting the need for a comprehensive approach to address these challenges in the future.

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“…As the cement industry is a significant contributor to global warming, efforts have been made to reduce the escalating demand for cement production through the use of cement substitutes and supplementary cementitious materials (Liao et al 2022, Seifu et al 2022, Fode et al 2023, Navarrete et al 2023. Nevertheless, the utilization of SCMs has encountered major challenges related to transportation and limited availability in the area (Vejmelková et al 2015, Shekarchi et al 2023. Furthermore, an essential characteristic of a concrete material is its exceptional resistance to physical and chemical degradation that occurs with age (Islam et al 2022).…”

Section: Introductionmentioning

confidence: 99%

Potential use of silane-modified oyster shell powder in hydrophobic concrete

MR,

et al. 2024

Mater. Res. Express

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This article describes the laboratory-scale manufacture of hydrophobically modified oyster shell powder (mOSP) via a silane coupling agent and used as cement substitutes at 0% to 2.5%. Hydrophobic chemicals have been used in concrete to minimise capillary action by researchers. Although hydrophobic fillers improve concrete's water repellency, replacing fine particles with them in higher proportions has a negative effect. We can use hydrophobically modified fillers in smaller amounts to replace cement while maintaining its critical properties. When mOSP is added in various quantities to binary and ternary mixes with natural zeolite, concrete hydration, mechanical strength, and durability are examined. At a 1.5% replacement ratio, mOSP improved concrete characteristics and durability. With free water and the hydrophobic modified nOSP, concrete mixes were consistently more workable. A gliding effect on the cementitious matrix caused by the surface roughness and hydrophobicity of the developed silane-coated nOSP increases the slump value. The 28-day compressive strength of concrete containing modified nOSP ranged from 39 to 42 MPa without zeolite and 43 to 46 MPa with it. Compressive strength increased more when 10% natural zeolite (NZ) was added with different amounts of mOSP. The RCPT values of the concrete series without zeolite dropped until 1% mOSP replacement (mOSCII), while the 1.5% mix (mOSZIII) had the lowest value. The angularly modified nOSP aggregates interlocked, improving the migration coefficient of mOSP concrete.

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Natural zeolite as a supplementary cementitious material – A holistic review of main properties and applications

Cited by 25 publications

References 126 publications

Freeze–Thaw Cycle Durability and Mechanism Analysis of Zeolite Powder-Modified Recycled Concrete

Freeze–Thaw Cycle Durability and Mechanism Analysis of Zeolite Powder-Modified Recycled Concrete

The Use of Natural Zeolites in Cement-Based Construction Materials—A State of the Art Review

Potential use of silane-modified oyster shell powder in hydrophobic concrete

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