Mathematical Methods for Optimizing the Technologies of Building Materials

Zhukov, Aleksey; Shokodko, Ekaterina

doi:10.1007/978-3-030-37919-3_40

Cited by 13 publications

(7 citation statements)

References 6 publications

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“…Experiments to select the composition of ceramic mixtures using rice straw as a burnout additive and rice straw as the active mineral component were carried out on the basis of the mathematical planning and processing of the experimental results [14,15] and the analysis of equations and the determination of the optimal cost were based on Carried out based on the analytical optimization method [16,17].…”

Section: Methodsmentioning

confidence: 99%

Ceramic products based on modified agricultural waste

et al. 2023

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The current production status of building ceramics is based on the following realities. First, due to market conditions, the number of ceramics factories in operation has decreased significantly. Second, from 2019, taking into account the pace of housing construction related to the transition to new financing mechanisms, the production of ceramic bricks increased by 2-3% from 2019. Growth opportunities are associated with an increase in the thermal efficiency of ceramic products and masonry based on them. The aim of the research described in the article was the development of compositions for wall heat-efficient ceramics on the basis of loess-like low-quality clay using rice straw as a burnout additive and in particular to determine the optimal consumption of processed rice straw. The scientific novelty of the research consisted in the development of methods for selecting the composition of ceramic mixtures, optimizing their composition and demonstrating the influence of rice straw and rice straw ash on the properties of ceramic mixtures and the properties of products. Rice straw. 5–15% by weight of lint rice straw, which is incorporated into clay masses at the stage of their production and burns at a temperature of 200–300 ° C, burns out the mass and makes it porous, prevents shrinkage phenomena and ash contains up to 20% amorphous silica. Carbonates contained in clay dissociate during firing, interacting with amorphous silicon dioxide and forming various calcium silicates that strengthen the structure of the chip industry.

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Section: Methodsmentioning

confidence: 99%

Ceramic products based on modified agricultural waste

et al. 2023

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“…The experiment to assess the influence of the gypsum polymer composition on its properties was carried out according to the general methodology for planning the experiment and analytical optimization of its results [15][16][17], based on the matrix of a full quadratic three-factor experiment. The resulting regression equations were tested against all statistical hypotheses.…”

Section: Methodsmentioning

confidence: 99%

Gypsum polymer materials in construction

et al. 2021

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The modern level of technological development involves the use of traditional materials modified with additives of various types and functional purposes, as well as composite materials allowing to obtain a product with improved properties. Expanding the area of application of products based on gypsum for facade systems involves the creation of weather-resistant, and, first of all, waterproof materials based on gypsum polymers. The purpose of the experiment, the results of which are presented in the article, was to assess the possibility of using polycondensation polymers as a component of gypsum polymer, to model the properties of the material and to evaluate its characteristics as a result of climatic and humidity influences. The modeling and optimization of gypsum polymer properties were based on statistical methods as well as methods of mathematical analysis of functions of several variables. The assessment of the water resistance of gypsum polymer samples was carried out under test conditions in an open reservoir with an almost unlimited reaction capacity of the medium. The weather resistance was checked according to the results of tests in a climatic chamber. Experiments have shown that the strength of samples with 20% modified melamine-formaldehyde resin in compression and in bending for 80 days of storage in air increases by 30% and 25%, respectively. The compressive strength is 60 MPa, and the flexural strength is 12 MPa. Gypsum polymer has high frost resistance up to 150 cycles of alternate freezing and thawing. The result of the research was the confirmation of the possibility of using polycondensation resins and the foundations of the method for selecting the composition of the gypsum polymer were developed. The results obtained can be used in the development of the technology of gypsum polymer products, and, in particular, piece products (building cladding tiles).

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“…This rock may contain finely dispersed calcium carbonate, silicon oxide and water-soluble salts. The impurities change the properties of the gypsum binder, which is the rationale for the general direction of research: the development of recipes and technological methods for obtaining the gypsum binder that meets the regulatory requirements for gypsum-based binders [13][14][15].…”

Section: Methodsmentioning

confidence: 99%

Modified gypsum binder for interior systems

et al. 2021

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As the main component for many interior plaster mixes, a natural gypsum binder or its analogues is used, which are products of processing of local raw materials or by-products of other industries. Under operating conditions, gypsum binder-based plaster coatings have two main features. The first is the ability to regulate room humidity and absorb harmful emissions. The second is the ability to implement the function of barrier protection in the event of a fire. Improving the quality of plastering works and optimizing their cost is associated with the development of modified compositions based on gypsum, justified use of waste and local building materials, which include clay-gypsum binder. Clay gypsum as a natural material of sedimentary origin is widespread both in Russia and in the states formed in the post-Soviet space. In terms of energy intensity and manufacturability, the processing of raw materials into a clay-gypsum binder does not differ from the conditions of traditional processing of natural gypsum. Compared to lime or cement mortars, mortars based on gypsum binder have greater elasticity and plasticity. Such properties associated with the manufacturability of the application, such as workability and thixotropy, as well as the interval for maintaining the pot life of the mixture, are controlled by the introduction of modifying additives, the evaluation of the formulation of which was the purpose of the research, the results of which are presented in the article. The studies carried out have established that varying the recipe parameters make it possible to regulate both the strength and performance characteristics of mixtures based on gypsum plaster, as well as the manufacturability of their application.

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Mathematical Methods for Optimizing the Technologies of Building Materials

Cited by 13 publications

References 6 publications

Ceramic products based on modified agricultural waste

Ceramic products based on modified agricultural waste

Gypsum polymer materials in construction

Modified gypsum binder for interior systems

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