Eco-friendly gypsum-lime mortar with the incorporation of recycled waste brick

Naciri, Khalil; Aalil, Issam; Ali, Chaaba

doi:10.1016/j.conbuildmat.2022.126770

Cited by 18 publications

(8 citation statements)

References 57 publications

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“…The bulk density is influenced by the sand proportion relative to gypsum and lime. A higher sand-to-gypsum-lime ratio leads to a denser mortar with increased bulk density [7]. Maintaining an appropriate balance between the sand content and gypsum-lime ratio is vital to achieve desired mortar properties, including strength, workability, and density.…”

Section: Densitymentioning

confidence: 99%

“…Similarly, another study on mortar and concrete properties utilizing machine-made sand from tunnel slag emphasized the impact of sand particle size and shape on mortar IOP Publishing doi:10.1088/1755-1315/1296/1/012002 2 workability [6]. In summary, the effect of increasing the sand proportion in gypsum mixtures on mechanical properties may vary based on factors such as sand particle size, gypsum content, and the presence of other additives [7]. Another study on repair mortars for restoration highlights that mechanical compatibility affects the reversibility of mortar, resulting in lower mechanical properties compared to the original plaster [8].…”

Section: Introductionmentioning

confidence: 99%

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The effect of sand on the mechanical characteristics of gypsum-lime mortars for heritage buildings

abed,

Al-Saffar

et al. 2024

IOP Conf. Ser.: Earth Environ. Sci.

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The endurance and preservation of historical buildings greatly depend on the integration of lime into the mortar used for masonry linings. Therefore, conducting mechanical assessments of existing and restoration mortars is crucial to ensure their compatibility and prevent potential issues. This article emphasizes the role of sand in enhancing the efficiency and resilience of gypsum-lime mortars by examining how it influences on their mechanical properties. The main aim of this research is to provide practical guidance for the sustainable restoration and conservation of historical edifices. The study examines the mechanical attributes of gypsum-lime mortars for restoring historical structures, with a specific focus on evaluating the impact of different sand proportions (10%, 15%, and 20% by gypsum volume). Moreover, the results were scrutinized to comprehend the compositions, structural features, and compressive strength. Among the six mortar blends, the addition of 15% sand was identified as the most effective augmentation to gypsum-lime, demonstrating comparable workability. Furthermore, this proportion exhibited improved compressive and flexural strengths on the seventh day compared to pure gypsum-lime. This highlights the potential economic application and further enhancement of this locally sourced product in various finishing applications. Notably, gypsum-lime mortar infused with 15% sand exhibited optimal structural properties, particularly in terms of compressive strength.

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Section: Densitymentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

The effect of sand on the mechanical characteristics of gypsum-lime mortars for heritage buildings

abed,

Al-Saffar

et al. 2024

IOP Conf. Ser.: Earth Environ. Sci.

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“…The compound Ca(OH) 2 is not only a calcium chemical, but also a mixture of gypsum for cement materials. 6,7 The method proposed in this study for producing the Ca(OH) 2gypsum mixture may also be useful for producing cement materials from waste gypsum and alkaline wastewater.…”

Section: Transformation Of Gypsum To Calcium Hydroxide With Small Amo...mentioning

confidence: 99%

“…3 Several studies focusing on the production of eco-friendly cementitious materials based on a mixture of Ca(OH) 2 and calcium sulphate (gypsum, CaSO 4 Á2H 2 O) have been conducted. [4][5][6] The production of these materials does not require calcination at high temperatures and is based on reactions that involve calcium hydroxide and gypsum powder. However, the production of lime requires the calcination of limestone consisting of calcium carbonate (CaCO 3 ), at a high temperature of approximately 1000 1C.…”

Section: Introductionmentioning

confidence: 99%

Environmentally responsible production of lime from recycled gypsum and weakly alkaline wastewater

Tafu,

Suzuki,

Nakamura

et al. 2024

New J. Chem.

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“…On the contrary, even though the crushed ceramics also have reactive silica, the content of reactive silica is lower. The crushed ceramics, as aggregates, are not suitable to prepare lime mortar, but they are better to enhance the waterproof aspects of mortars [35] . In consequence, limestones and volcanic materials as aggregates are more suitable to prepare lime mortar than other siliceous aggregates.…”

Section: Mineralogy and Granulometry Of Aggregatesmentioning

confidence: 99%

A review of mechanical properties and carbonation behavior evolution of lime mortar for architectural heritages restoration

Chen,

Liu,

et al. 2024

Miner Miner Mater

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Using lime mortar to connect, protect and decorate buildings was a very common technique in ancient times. Understanding the mechanical properties and carbonation mechanism of lime mortar is the basis for successful restoration and protection of architectural heritage. The compatibility and durability of lime mortar and architectural heritage promote the study of related mechanisms, so that it can adapt to the current reality. In this paper, the factors affecting the mechanical properties of lime mortar are summarized, and the carbonization principle of lime mortar is analyzed. The effects of water-binder ratio, aggregate mineralogy and particle size, inorganic additives and organic additives on the mechanical properties of lime mortar were elaborated in detail, especially the action behavior of organic additives in the carbonation process of lime mortar. Suggestions for enhancing the mechanical properties of lime mortar are put forward, which provides a theoretical basis for improving the compatibility and durability of materials in the restoration of ancient buildings.

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Eco-friendly gypsum-lime mortar with the incorporation of recycled waste brick

Cited by 18 publications

References 57 publications

The effect of sand on the mechanical characteristics of gypsum-lime mortars for heritage buildings

The effect of sand on the mechanical characteristics of gypsum-lime mortars for heritage buildings

Environmentally responsible production of lime from recycled gypsum and weakly alkaline wastewater

A review of mechanical properties and carbonation behavior evolution of lime mortar for architectural heritages restoration

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