Influence of Microfibrillated Cellulose Additive on Strength, Elastic Modulus, Heat Release, and Shrinkage of Mortar and Concrete

This work aimed to study the effect of a microfibrillated cellulose additive on strength, elastic modulus, heat release, and shrinkage of mortar and concrete. The dosage of the additive varies from 0.4 to 4.5% by weight of the cement. The change in strength with an increase in the dosage of the addi...

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Autores principales:	Yurii Barabanshchikov, Hien Pham, Kseniia Usanova
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	concrete mortar nano/microfiber cellulose testing strengths tensile modulus Technology T Electrical engineering. Electronics. Nuclear engineering TK1-9971 Engineering (General). Civil engineering (General) TA1-2040 Microscopy QH201-278.5 Descriptive and experimental mechanics QC120-168.85
Acceso en línea:	https://doaj.org/article/a8e98cb943034f81be3df690a1d2f911
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spelling	oai:doaj.org-article:a8e98cb943034f81be3df690a1d2f9112021-11-25T18:14:49ZInfluence of Microfibrillated Cellulose Additive on Strength, Elastic Modulus, Heat Release, and Shrinkage of Mortar and Concrete10.3390/ma142269331996-1944https://doaj.org/article/a8e98cb943034f81be3df690a1d2f9112021-11-01T00:00:00Zhttps://www.mdpi.com/1996-1944/14/22/6933https://doaj.org/toc/1996-1944This work aimed to study the effect of a microfibrillated cellulose additive on strength, elastic modulus, heat release, and shrinkage of mortar and concrete. The dosage of the additive varies from 0.4 to 4.5% by weight of the cement. The change in strength with an increase in the dosage of the additive occurred in a wave-like manner. The uneven character of the change in the results also took place in the determination of heat release and shrinkage. In general, heat release and shrinkage decreased at increasing additive dosage. The additive showed the greatest decrease in the heat release of concrete at a content of 2%. The heat release of concrete practically differed little from the exotherm of the standard at an additive content of 1 and 1.5%. The addition of microfibrillated cellulose additive in small (0.5%) and large (1.5%) amounts reduced shrinkage compared to the reference, and at an intermediate content (1%), the shrinkage was higher than in the reference specimens. In this case, the water evaporation rate from concrete increased with an increase in the additive. With an increase in the additive dosage, the modulus of elasticity decreases. Thus, the microfibrillated cellulose additive provides concrete with lower values of the modulus of elasticity, heat release, and shrinkage, and the additive is recommended for use in concretes with increased crack resistance during the hardening period. The recommended additive content is 0.5% by weight of cement. At the specified dosage, it is possible to provide the class of concrete in terms of compressive strength C35/45.Yurii BarabanshchikovHien PhamKseniia UsanovaMDPI AGarticleconcretemortarnano/microfiber cellulosetestingstrengthstensile modulusTechnologyTElectrical engineering. Electronics. Nuclear engineeringTK1-9971Engineering (General). Civil engineering (General)TA1-2040MicroscopyQH201-278.5Descriptive and experimental mechanicsQC120-168.85ENMaterials, Vol 14, Iss 6933, p 6933 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	concrete mortar nano/microfiber cellulose testing strengths tensile modulus Technology T Electrical engineering. Electronics. Nuclear engineering TK1-9971 Engineering (General). Civil engineering (General) TA1-2040 Microscopy QH201-278.5 Descriptive and experimental mechanics QC120-168.85
spellingShingle	concrete mortar nano/microfiber cellulose testing strengths tensile modulus Technology T Electrical engineering. Electronics. Nuclear engineering TK1-9971 Engineering (General). Civil engineering (General) TA1-2040 Microscopy QH201-278.5 Descriptive and experimental mechanics QC120-168.85 Yurii Barabanshchikov Hien Pham Kseniia Usanova Influence of Microfibrillated Cellulose Additive on Strength, Elastic Modulus, Heat Release, and Shrinkage of Mortar and Concrete
description	This work aimed to study the effect of a microfibrillated cellulose additive on strength, elastic modulus, heat release, and shrinkage of mortar and concrete. The dosage of the additive varies from 0.4 to 4.5% by weight of the cement. The change in strength with an increase in the dosage of the additive occurred in a wave-like manner. The uneven character of the change in the results also took place in the determination of heat release and shrinkage. In general, heat release and shrinkage decreased at increasing additive dosage. The additive showed the greatest decrease in the heat release of concrete at a content of 2%. The heat release of concrete practically differed little from the exotherm of the standard at an additive content of 1 and 1.5%. The addition of microfibrillated cellulose additive in small (0.5%) and large (1.5%) amounts reduced shrinkage compared to the reference, and at an intermediate content (1%), the shrinkage was higher than in the reference specimens. In this case, the water evaporation rate from concrete increased with an increase in the additive. With an increase in the additive dosage, the modulus of elasticity decreases. Thus, the microfibrillated cellulose additive provides concrete with lower values of the modulus of elasticity, heat release, and shrinkage, and the additive is recommended for use in concretes with increased crack resistance during the hardening period. The recommended additive content is 0.5% by weight of cement. At the specified dosage, it is possible to provide the class of concrete in terms of compressive strength C35/45.
format	article
author	Yurii Barabanshchikov Hien Pham Kseniia Usanova
author_facet	Yurii Barabanshchikov Hien Pham Kseniia Usanova
author_sort	Yurii Barabanshchikov
title	Influence of Microfibrillated Cellulose Additive on Strength, Elastic Modulus, Heat Release, and Shrinkage of Mortar and Concrete
title_short	Influence of Microfibrillated Cellulose Additive on Strength, Elastic Modulus, Heat Release, and Shrinkage of Mortar and Concrete
title_full	Influence of Microfibrillated Cellulose Additive on Strength, Elastic Modulus, Heat Release, and Shrinkage of Mortar and Concrete
title_fullStr	Influence of Microfibrillated Cellulose Additive on Strength, Elastic Modulus, Heat Release, and Shrinkage of Mortar and Concrete
title_full_unstemmed	Influence of Microfibrillated Cellulose Additive on Strength, Elastic Modulus, Heat Release, and Shrinkage of Mortar and Concrete
title_sort	influence of microfibrillated cellulose additive on strength, elastic modulus, heat release, and shrinkage of mortar and concrete
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/a8e98cb943034f81be3df690a1d2f911
work_keys_str_mv	AT yuriibarabanshchikov influenceofmicrofibrillatedcelluloseadditiveonstrengthelasticmodulusheatreleaseandshrinkageofmortarandconcrete AT hienpham influenceofmicrofibrillatedcelluloseadditiveonstrengthelasticmodulusheatreleaseandshrinkageofmortarandconcrete AT kseniiausanova influenceofmicrofibrillatedcelluloseadditiveonstrengthelasticmodulusheatreleaseandshrinkageofmortarandconcrete
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Influence of Microfibrillated Cellulose Additive on Strength, Elastic Modulus, Heat Release, and Shrinkage of Mortar and Concrete

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