Structural and heat-insulating cement-based concrete with complex glyoxal based additive
ABSTRACT: Introduction. The article presents the results of studies of the effect of complex additive based on glyoxal on the properties of cement-based foam concrete mix and foam concrete of natural hardening. The relevance of the study is determined by the necessity to provide the required process...
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ftdoajarticles:oai:doaj.org/article:7b81ca45a0834a15af9e66973d9030c6 2023-05-15T15:17:33+02:00 Structural and heat-insulating cement-based concrete with complex glyoxal based additive Aleksei B. Steshenko Anna S. Simakova Alexandr S. Inozemtcev Sergei S. Inozemtcev 2022-10-01T00:00:00Z https://doi.org/10.15828/2075-8545-2022-14-5-353-362 https://doaj.org/article/7b81ca45a0834a15af9e66973d9030c6 EN RU eng rus OOO "CNT «NanoStroitelstvo» http://nanobuild.ru/en_EN/journal/download-number/5-2022.pdf https://doaj.org/toc/2075-8545 https://doi.org/10.15828/2075-8545-2022-14-5-353-362 2075-8545 https://doaj.org/article/7b81ca45a0834a15af9e66973d9030c6 Нанотехнологии в строительстве, Vol 14, Iss 5, Pp 353-362 (2022) glyoxal structure formation modifying additives foam concrete porous structure plastic shrinkage compressive strength average density Building construction TH1-9745 article 2022 ftdoajarticles https://doi.org/10.15828/2075-8545-2022-14-5-353-362 2022-12-30T21:39:56Z ABSTRACT: Introduction. The article presents the results of studies of the effect of complex additive based on glyoxal on the properties of cement-based foam concrete mix and foam concrete of natural hardening. The relevance of the study is determined by the necessity to provide the required process parameters of mixture for transportation and laying the formwork, as well as providing strength and thermal and physical characteristics of wall structures for the development of the northern regions of Russia, including the Arctic zone. It has been proposed to decrease the shrinkage deformations of the concrete mix and increase compressive strength of hardened foam concrete by affecting the cement matrix with complex modifier based on glyoxal. Materials and methods. The effect of modifying additives on the properties of the foam concrete mixture and foam concrete was studied at a W/S mixture ratio of 0.45. Research has been carried out using test methods set out in national standards. The results of the study of the effect of complex modifying additives (CMA) based on an aqueous solution of glyoxal and organic acids on the rheological and strength properties of foam concrete are presented, the regularities of the processes and the mechanism of structure formation of the modified foam concrete are determined. Results. The use of modifying additives leads to increase result in increasing the aggregative stability and reducing the plastic shrinkage of the foam concrete mix by 22–70%. In foam concrete with the complex additive LA 0.5% + Gl 0.55% the compressive strength rises from 1.96 to 2.43 MPa at the age of 28 days while maintaining the average density of D600. The thermal conductivity coefficient of foam concrete modified with various additives decreased by 5–30% compared to references. Conclusions. The obtained results of the study create in the construction industry the basis for the import substitution of modifying additives on the domestic mineral resource base and the production of effective structural and ... Article in Journal/Newspaper Arctic Directory of Open Access Journals: DOAJ Articles Arctic Nanotechnologies in Construction A Scientific Internet-Journal 14 5 353 362 |
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Open Polar |
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Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English Russian |
topic |
glyoxal structure formation modifying additives foam concrete porous structure plastic shrinkage compressive strength average density Building construction TH1-9745 |
spellingShingle |
glyoxal structure formation modifying additives foam concrete porous structure plastic shrinkage compressive strength average density Building construction TH1-9745 Aleksei B. Steshenko Anna S. Simakova Alexandr S. Inozemtcev Sergei S. Inozemtcev Structural and heat-insulating cement-based concrete with complex glyoxal based additive |
topic_facet |
glyoxal structure formation modifying additives foam concrete porous structure plastic shrinkage compressive strength average density Building construction TH1-9745 |
description |
ABSTRACT: Introduction. The article presents the results of studies of the effect of complex additive based on glyoxal on the properties of cement-based foam concrete mix and foam concrete of natural hardening. The relevance of the study is determined by the necessity to provide the required process parameters of mixture for transportation and laying the formwork, as well as providing strength and thermal and physical characteristics of wall structures for the development of the northern regions of Russia, including the Arctic zone. It has been proposed to decrease the shrinkage deformations of the concrete mix and increase compressive strength of hardened foam concrete by affecting the cement matrix with complex modifier based on glyoxal. Materials and methods. The effect of modifying additives on the properties of the foam concrete mixture and foam concrete was studied at a W/S mixture ratio of 0.45. Research has been carried out using test methods set out in national standards. The results of the study of the effect of complex modifying additives (CMA) based on an aqueous solution of glyoxal and organic acids on the rheological and strength properties of foam concrete are presented, the regularities of the processes and the mechanism of structure formation of the modified foam concrete are determined. Results. The use of modifying additives leads to increase result in increasing the aggregative stability and reducing the plastic shrinkage of the foam concrete mix by 22–70%. In foam concrete with the complex additive LA 0.5% + Gl 0.55% the compressive strength rises from 1.96 to 2.43 MPa at the age of 28 days while maintaining the average density of D600. The thermal conductivity coefficient of foam concrete modified with various additives decreased by 5–30% compared to references. Conclusions. The obtained results of the study create in the construction industry the basis for the import substitution of modifying additives on the domestic mineral resource base and the production of effective structural and ... |
format |
Article in Journal/Newspaper |
author |
Aleksei B. Steshenko Anna S. Simakova Alexandr S. Inozemtcev Sergei S. Inozemtcev |
author_facet |
Aleksei B. Steshenko Anna S. Simakova Alexandr S. Inozemtcev Sergei S. Inozemtcev |
author_sort |
Aleksei B. Steshenko |
title |
Structural and heat-insulating cement-based concrete with complex glyoxal based additive |
title_short |
Structural and heat-insulating cement-based concrete with complex glyoxal based additive |
title_full |
Structural and heat-insulating cement-based concrete with complex glyoxal based additive |
title_fullStr |
Structural and heat-insulating cement-based concrete with complex glyoxal based additive |
title_full_unstemmed |
Structural and heat-insulating cement-based concrete with complex glyoxal based additive |
title_sort |
structural and heat-insulating cement-based concrete with complex glyoxal based additive |
publisher |
OOO "CNT «NanoStroitelstvo» |
publishDate |
2022 |
url |
https://doi.org/10.15828/2075-8545-2022-14-5-353-362 https://doaj.org/article/7b81ca45a0834a15af9e66973d9030c6 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic |
genre_facet |
Arctic |
op_source |
Нанотехнологии в строительстве, Vol 14, Iss 5, Pp 353-362 (2022) |
op_relation |
http://nanobuild.ru/en_EN/journal/download-number/5-2022.pdf https://doaj.org/toc/2075-8545 https://doi.org/10.15828/2075-8545-2022-14-5-353-362 2075-8545 https://doaj.org/article/7b81ca45a0834a15af9e66973d9030c6 |
op_doi |
https://doi.org/10.15828/2075-8545-2022-14-5-353-362 |
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Nanotechnologies in Construction A Scientific Internet-Journal |
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14 |
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353 |
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