Comparative properties of a lime mortar with different metakaolin and natron additions

Arcones-Pascual, Gustavo; Olivares, Francisco Hernández; Aguilar, Alberto Sepulcre

doi:10.1016/j.conbuildmat.2016.03.170

Cited by 11 publications

(3 citation statements)

References 29 publications

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“…The maturing period of coatings in such paints does not exceed 10 days under outdoor application temperature of 20 to 25°С and, as a consequence, such coatings are not water resilient and, therefore, easily washed off under high humidity, e.g. during rain or snow [1,[27][28][29]. It is therefore concluded that such paints are applicable only in areas with relatively small precipitation, for example, in arid or semi-arid territories, whereas in areas with moderate humidity, such paints are seldom used for outdoor works and applied usually in indoor coatings.…”

Section: Applied Masonry Paints' Chemical Compositions and Propertiesmentioning

confidence: 99%

Producing Improved Masonry and Protective Paints by Means of Modifying and Introducing Additives in Liquid Glass

Vyboishchik

Kostiunina

2018

SSP

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Environmental issues are among the most challenging problems affecting living conditions of urban population in nowadays’ Russia, and, therefore, are the most crucial questions needed solution under current industrial conditions. One of the main weaknesses of the contemporary Russian cities’ aesthetical appearance is the insufficient protection of buildings from atmospheric phenomena, viz. temperature, humidity, precipitations, etc. In addition, industrial emissions are the second main cause impeding the durability of urban buildings’ coatings. The given article describes new techniques in producing masonry and protective paints’ production in Chelyabinsk Region. The traditional technique of paints coatings’, e.g. liquid glass’, manufacture, is researched, with its weak points described, and new techniques proposed. The influence the composition of the raw material on basic properties of masonry paints under different condition is studied. The application of new techniques utilizing industrial emissions in urban areas can solve the above-listed problems, which also, in addition with the basic physical and chemical properties’ improvement, will obtain masonry paints having reduced cost and increased hardness.

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Section: Applied Masonry Paints' Chemical Compositions and Propertiesmentioning

confidence: 99%

Producing Improved Masonry and Protective Paints by Means of Modifying and Introducing Additives in Liquid Glass

Vyboishchik

Kostiunina

2018

SSP

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“…When interventions with existing buildings are performed (e.g., restoration and/or updating), the construction industry is also responsible for construction wastes, which are actually treated as special wastes outside the virtuous paths of waste recycling. Due to these remarks, the international research has focused on the definition of eco-friendly alternatives to OPC (see, e.g., [3][4][5]), and growing attention has addressed geopolymers [6] as construction materials [7]. Geopolymer production is mainly obtained from raw materials based on aluminosilicate (referred to as precursors), alkaline activators and other elements [8].…”

Section: Introductionmentioning

confidence: 99%

Experimental Analysis and Numerical Modelling of the Mechanical Behavior of a Sisal-Fiber-Reinforced Geopolymer

Benfratello,

Cirello,

Palizzolo

et al. 2024

Applied Sciences

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The present paper is devoted to the proposal of appropriate numerical modelling able to provide a suitable description of the mechanical behavior of a composite geopolymer. Reference is made to a natural sisal-fiber-reinforced geopolymer. The study is based on the results of appropriate experimental investigations for compressive, flexural and splitting loadings, taking into account different weight percentages of fibers to evidence their role in the mechanical behavior. The main objective of the paper is to calibrate the microplane constitutive model, available in ANSYS software version 18.1, where the numerical analyses are performed. Therefore, the present study is structured in two different steps. Firstly, the mechanical behavior of geopolymers reinforced with sisal fibers is experimentally investigated, and subsequently, the gathered test data are interpreted and utilized to calibrate the relevant constitutive model to be used in the numerical stage. The obtained results are compared with experimental data, yielding good correlations. The paper’s results supply the parameters required to obtain an affordable numerical model of the reinforced geopolymer for different percentages of fibers to be adopted for material design with assigned mechanical properties.

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“…Davidovits is the creator of the term "geopolymer", and bases much of his research on the theory that the binder of these pyramids is mainly a mixture of natron, crushed limestone, clay, lime and water [13]. By applying this theory, Arcones et al [14] conducted research using sodium carbonate, lime and MK as a binder material. The authors prepared two batches of mixtures in a constant proportion of 60% sand and 40% binder.…”

Section: Introductionmentioning

confidence: 99%

Hybrid Lime–Pozzolan Geopolymer Systems: Microstructural, Mechanical and Durability Studies

et al. 2022

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This work studies the possibility of using geopolymer materials to enhance the mechanical and durability properties of hydrated lime–pozzolan mixtures, which gave rise to the so-called “hybrid systems”. Two different waste types were used as pozzolan in the lime–pozzolan system: rice husk ash (RHA) and spent fluid catalytic cracking (FCC). The geopolymer fabricated with FCC was activated with commercial reagents (NaOH and Na2SiO3), and also with alternative sources of silica to obtain a lower carbon footprint in these mixtures. The alternative silica sources were RHA and residual diatomaceous earth (RDE) from the beer industry. The geopolymer mixture substituted the lime–pozzolan mixture for 30% replacement in weight. The hybrid systems showed better mechanical strengths for the short and medium curing ages in relation to the lime–pozzolan mixtures. Thermogravimetric analyses were performed to characterise the types of products formed in these mixtures. In the durability studies, hybrid systems better performed in freeze–thaw cycles and obtained lower capillarity water absorption values.

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Comparative properties of a lime mortar with different metakaolin and natron additions

Cited by 11 publications

References 29 publications

Producing Improved Masonry and Protective Paints by Means of Modifying and Introducing Additives in Liquid Glass

Producing Improved Masonry and Protective Paints by Means of Modifying and Introducing Additives in Liquid Glass

Experimental Analysis and Numerical Modelling of the Mechanical Behavior of a Sisal-Fiber-Reinforced Geopolymer

Hybrid Lime–Pozzolan Geopolymer Systems: Microstructural, Mechanical and Durability Studies

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