Ceramic Thermal Insulator Based on Diatomite Obtained by Starch Consolidation Casting

Alvarado, Cinthya; Alvarado-Quintana, Hernán; Jara, Raúl Siche

doi:10.3390/ma16114028

Cited by 4 publications

(1 citation statement)

References 34 publications

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“…According to the findings, the main components of the three raw materials are silica (SiO 2 ) and alumina (Al 2 O 3 ). 1 The diatomite analysis was taken from [32].…”

Section: Characterisation Of Used Materialsmentioning

confidence: 99%

Geopolymer Made from Kaolin, Diatomite, and Rice Husk Ash for Ceiling Thermal Insulation

Alvarado,

Martínez-Cerna,

Alvarado-Quintana

2023

Buildings

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In this study, geopolymers made of metakaolin (MK), diatomite (D), and rice husk ash (RHA) were developed for ceiling thermal insulation in houses to provide protection against cold temperatures. The influence of the constituent mixing ratio and the temperature of curing on the heat conductivity and compressive strength of the geopolymer was investigated. Specimens were formed according to a 10-level mix design with three replicates and subjected to curing at 40 °C and 80 °C. Heat conductivity and compressive strength were determined in accordance with established standards. The simplex lattice method was used to obtain the response surfaces, contour plots, and tracking curves. The geopolymers under study displayed a reduction in heat conductivity and an increase in compressive strength when the curing temperature was raised. The optimal mixing ratio to achieve a balance between the compressive strength and thermal conductivity of the geopolymers investigated was 0.50 MK and 0.50 RHA. Diatomite’s thermal insulation contribution is neutralized when crystals from the geopolymer gel fill the pore volume. The mixture’s optimal results were achieved when cured at 80 °C, demonstrating a thermal conductivity of 0.10 W/m·K and a compressive strength of 5.37 MPa.

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“…According to the findings, the main components of the three raw materials are silica (SiO 2 ) and alumina (Al 2 O 3 ). 1 The diatomite analysis was taken from [32].…”

Section: Characterisation Of Used Materialsmentioning

confidence: 99%

Geopolymer Made from Kaolin, Diatomite, and Rice Husk Ash for Ceiling Thermal Insulation

Alvarado,

Martínez-Cerna,

Alvarado-Quintana

2023

Buildings

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Producing a siliceous ferroalloy from a mixture of amorphous rocks

Shevko,

Mirkayev,

Aitkulov

et al. 2024

Results in Engineering

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Research of the physical and chemical properties of diatomite as a carrier of phase change materials for use in advanced building materials

Przybek,

Łach,

Hebdowska-Krupa

et al. 2024

Front. Mater.

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Diatomaceous earth (diatomite) is a material that exhibits unique properties that can be used in many areas of the economy. The use of diatomite as a sorbent for absorbing oil substances has been known for many years. Diatomite, thanks to its structure, acts like a sponge, absorbing oil substances. Its micropores increase the surface area in contact with the pollutant, which speeds up the absorption process. Diatomite is used to clean up oil spills on land and water, secure industrial sites, treat wastewater, and manage pollution at ports and oil ports. Many scientific papers to date have focused on evaluating the potential of diatomite as a medium for petroleum substances. Still, there is little mention of the potential for using diatomite as a carrier for paraffinic PCMs. Paraffins are synthetic compounds obtained by distillation from a specific fraction of crude oil. This paper presents a study of the physicochemical properties of diatomite with a view to its subsequent use as a medium for absorbing paraffinic phase change materials. Thanks to its high porosity, high specific surface area, low density, and chemical inertness, this material is an ideal medium for paraffinic substances. In addition, its most important feature is the absence of desorption. A new type of environmentally friendly and cheap phase change materials may contribute to the increase in the use of this type of materials in construction. The benefits of using PCM materials are known.

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Ceramic Thermal Insulator Based on Diatomite Obtained by Starch Consolidation Casting

Cited by 4 publications

References 34 publications

Geopolymer Made from Kaolin, Diatomite, and Rice Husk Ash for Ceiling Thermal Insulation

Geopolymer Made from Kaolin, Diatomite, and Rice Husk Ash for Ceiling Thermal Insulation

Producing a siliceous ferroalloy from a mixture of amorphous rocks

Research of the physical and chemical properties of diatomite as a carrier of phase change materials for use in advanced building materials

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