Mechanical, water resistance and environmental benefits of magnesium oxychloride cement incorporating rice husk ash

Nie, Yanfeng; Lu, Jingzhou; Li, Yong; Meng, Dan; He, Zhihai; Shi, Jinyan

doi:10.1016/j.scitotenv.2022.157871

Cited by 40 publications

(6 citation statements)

References 43 publications

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“…Prusty et al [9] discussed the agricultural waste materials that can be utilized as a partial substitute for fine aggregates in concrete. It has been observed that the workability of the agricultural waste concrete, which includes groundnut shell, oyster shell, cork, rice husk ash (RHA) [55][56][57], and tobacco waste as an alternative, stood superior to that of concrete having just groundnut shell. According to the review, many significant studies are needed on all fine aggregates replacing agricultural waste materials.…”

Section: Agricultural Wastes Used In Concretementioning

confidence: 99%

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A Scientometric Analysis Review on Agricultural Wastes Used as Building Materials

2023

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The rapid urbanization of developed countries and the difficulty in disposing of agricultural wastes have created opportunities for the construction industry to use agricultural wastes. A wide variety of agricultural waste materials are already in use with concrete as substitutes for cement and aggregates, as well as reinforcing materials. This study reviews the available literature published from 1935 to 2022 on agricultural wastes being used as building materials. The research utilizes a bibliographic approach based on the Scopus database. This article retrieves data employing the Scopus database and incorporates 671 articles based on the keywords, agricultural wastes used as building materials. The scientometric analysis is the second step, wherein the patterns of the obtained articles are investigated with various factors such as countries with the most publications, sources that have the most publications, most frequently appearing keywords, and articles with more relevant research works. A summary of the results obtained at various stages of the research is depicted in each phase. Detailed quantitative and qualitative discussions are also conducted to achieve the three main objectives: the summarization of quantitative data, discussion of the existing application, and identification of future research directions. These findings serve the future endeavor of agricultural waste-to-building materials’ incineration academic research. The scientometric review paves the way for academics from various nations to impart novel ideas and information and foster research collaboration.

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Section: Agricultural Wastes Used In Concretementioning

confidence: 99%

“…In recent years, many scientists have employed MOSC to recycle industrial solid wastes, such as fly ash, which have been studied extensively. Both low-and high-calcium fly ash have promising application prospects in MOSC, with a dosage that can reach up to 50% of MgO [55,64].…”

Section: Agricultural Wastes Used In Concretementioning

confidence: 99%

A Scientometric Analysis Review on Agricultural Wastes Used as Building Materials

2023

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“…On the other hand, the manufacturing of MgO, the main raw material of MOC, requires lower temperatures (<1000 • C) making it an energy-efficient alternative [4]. Moreover, the resulting cement using MgO also has high mechanical strength [5], air hardening ability, light weight, low thermal conductivity [6], good abrasion resistance [7], and resistance to oils, greases, and paints [8]. In addition, MOC possesses high early-age strength and has good bonding potential with various fillers, including gravel, sand, wood particles, expanded clays, asbestos, and marble dust [6,9,10].…”

Section: Introductionmentioning

confidence: 99%

Magnesium Oxychloride Cement: Development, Opportunities and Challenges

Ahmad,

Rawat,

Zhang

2024

Applied Sciences

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Magnesium oxychloride cement (MOC), an alternative to ordinary Portland cement (OPC), has attracted increasing research interest for its excellent mechanical properties and its green and sustainable attributes. The poor water resistance of MOC limited its usage mainly to indoor applications; nevertheless, recent advances in water-resistant MOC have expanded the material’s potential applications from indoor to outdoor. This review aims to showcase recent advances in MOC, including water-resistant MOC and ductile fiber-reinforced MOC (FRMOC), exploring their potential applications including in sustainable construction for future generations. The mechanism under different curing procedures such as normal and CO2 curing and the effect of different inorganic and organic additives on the water resistance of MOC composites are discussed. In particular, the review highlights the recent developments in achieving over 100% strength retention under water at 28 days as well as advancements in FRMOC, where tensile strength has surpassed 10 MPa with a remarkable strain capacity ranging from 4–8%. This paper also sheds light on the potential applications of MOC as a fire-resistant coating material, green-wood-MOC composite building material, and in reducing solid waste industrial byproduct accumulations. Finally, this study suggests future research directions to enhance the practical application of MOC.

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“…Magnesium oxychloride cement (MOC) is a kind of MgO-MgCl 2 -H 2 O ternary composite system mixed with active MgO, MgCl 2 and H 2 O [23][24][25]. Compared to the bone cement typically utilized in clinical settings, MOC bone cement has excellent mechanical properties and is biodegradable, and the Mg 2+ produced during degradation can promote the absorption of Ca 2+ in the body, which is beneficial to bone repair [26][27][28].…”

Section: Introductionmentioning

confidence: 99%

Physicochemical properties and in vitro activity of SrHPO₄ modified magnesium oxychloride bone cement

Feng,

Liao,

et al. 2023

Mater. Res. Express

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In response to the shortcomings of magnesium oxychloride cement (MOC), which has excellent with outstanding mechanical properties and favorable bioactivity but poor water resistance, strontium hydrogen phosphate (SrHPO4) was used as a water resistance modifier for MOC in the paper, and the effects of SrHPO4 on the strength, water resistance, in vitro degradation and bioactivity of MOC were investigated; the results showed that SrHPO4 could enhance the water resistance of MOC, in which the initial strength of MOC containing 4.0 wt% SrHPO4 was 92.3 ± 2.5 MPa, and the strength was still 8.2 ± 0.9 MPa after 84 d of immersion in SBF solution; the degradation experiments of the samples in SBF solution showed that the degradation of SrHPO4-MOC was controlled, and the low alkaline environment created by the degradation promoted the deposition of hydroxyapatite on the cement surface, it indicated that SrHPO4-MOC material had good degradation properties and bioactivity; cell experiments showed that compared with MOC, SrHPO4-MOC was noncytotoxic and could promote cell proliferation, which was expected to be a new material for bone repair.

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Mechanical, water resistance and environmental benefits of magnesium oxychloride cement incorporating rice husk ash

Cited by 40 publications

References 43 publications

A Scientometric Analysis Review on Agricultural Wastes Used as Building Materials

A Scientometric Analysis Review on Agricultural Wastes Used as Building Materials

Magnesium Oxychloride Cement: Development, Opportunities and Challenges

Physicochemical properties and in vitro activity of SrHPO₄ modified magnesium oxychloride bone cement

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Mechanical, water resistance and environmental benefits of magnesium oxychloride cement incorporating rice husk ash

Cited by 40 publications

References 43 publications

A Scientometric Analysis Review on Agricultural Wastes Used as Building Materials

A Scientometric Analysis Review on Agricultural Wastes Used as Building Materials

Magnesium Oxychloride Cement: Development, Opportunities and Challenges

Physicochemical properties and in vitro activity of SrHPO4 modified magnesium oxychloride bone cement

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Product

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Physicochemical properties and in vitro activity of SrHPO₄ modified magnesium oxychloride bone cement