Composition and structure of the stone composite gypsumbinder with additives of lime and the ground haydite dust

Халиуллин, М И; Рахимов, Р З; Гайфуллин, А Р

doi:10.22227/1997-0935.2013.12.109-117

Cited by 4 publications

(2 citation statements)

References 2 publications

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“…The design of mixtures for gypsum block of different volume weights may differ significantly. [8][9][10][11][12][13][14][15]. Some of the mixtures use technogenic components, which helps to solve the currently relevant challenge of mineral waste disposal, which is also relevant today.…”

Section: Generalmentioning

confidence: 99%

Modified gas gypsum for thermal and sound insulation in engineering structures

Mokrova

Matveeva²,

Leontyeva³

et al. 2023

E3S Web Conf.

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The relevance of gypsum materials in the context of "Eco-construction" is beyond doubt, since gypsum is exactly the building material that fully meets the requirements of ecology and environ-mental protection. Improving the efficiency of gypsum building materials by creating new modi-fied materials with improved technical and operational characteristics currently remains an im-portant and urgent task. In conditions of energy and resource saving due to the lack of the need to build new production lines and sections, this problem was solved by creating modified gypsum materials with improved functional performance properties through the use of modern highly effective modifying micro- and nano-additives. The paper discusses the effect of nanocellulose and styrene latex microadditives on the morphology and properties of gas gypsum – compressive and flexural strength, and sound absorption coefficients. We used a standard gypsum binder of the Peshelan gypsum plant grade G-6. Crystalline citric acid was used as a gas - forming agent. An aqueous emulsion butadiene-styrene latex and an aqueous suspension of nanocellulose were used as strengthening and modifying structuring microadditives.

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Section: Generalmentioning

confidence: 99%

Modified gas gypsum for thermal and sound insulation in engineering structures

Mokrova

Matveeva²,

Leontyeva³

et al. 2023

E3S Web Conf.

View full text Add to dashboard Cite

show abstract

“…To solve this problem, various types of mineral additives are used, including products of technological products such as slag, ash and sludge of various origins [1][2][3]. Studies [4][5][6] indicate that the most effective method is to introduce silica containing additives that contribute to the formation of sparingly soluble products in the gypsum stone structure, preventing calcium sulfate from dissolving in water and providing strength and water resistance products. The efficiency of introducing these additives directly depends on the particle size of the modifier.…”

Section: Introductionmentioning

confidence: 99%

Experimental study for Gypsum Materials Enhanced by Compound Additives Based on Nano-Silica

Elrefaei,

Batova

2023

ERJ. Engineering Research Journal

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Gypsum is naturally a soft mineral with low strength and with high porous. Without adding additives, it may not possess the desired level of strength for certain applications and have alow moisture resistance, low fire resistance, and low overall durability. Nano-silica and active mineral additives can significantly increase the mechanical properties and structure formation of gypsum binder, making them more durable and resistant to cracking or breaking. To improve the properties of the additive, the nanosilica has been subjected to sonication. It was confirmed that the effect of sonication allowed nanosilica to be used as a key component in additives and that there was no relationship between the initial particle size and this effect. Activated Portland cement and nano-silica have a positive effect on the mechanical properties of the material, and this effect is observed from the hydration process to hardening. The optimal range of nano-silica content was established, equal to 0.05 -0.1%, while the increase in compressive strength reaches 30-40% compared to the control composition, water resistance increases to 0.47.The modified matrix is characterized by greater density and compressive strength. This result is due to the formation of new growths based on hydrated calcium silicate capable of binding to gypsum crystals and filling the pores at the same time. new growths based on hydrated calcium silicate were identified by IR spectra and physicochemical analyzes including differential thermal analysis, scanning electron microscopy and energy dispersive X-ray spectroscopy.

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Natural resources of Irkutsk region for manufacturing construction materials

Shishelova¹,

Hramovskih²

2022

SiliconPV 2021, the 11th International Conference on Crystalline Silicon Photovoltaics

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Composition and structure of the stone composite gypsumbinder with additives of lime and the ground haydite dust

Cited by 4 publications

References 2 publications

Modified gas gypsum for thermal and sound insulation in engineering structures

Modified gas gypsum for thermal and sound insulation in engineering structures

Experimental study for Gypsum Materials Enhanced by Compound Additives Based on Nano-Silica

Natural resources of Irkutsk region for manufacturing construction materials

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