Influence of Different Types of Nanosilica on Compressive Strength Development of Cement Matrix Composites
This article presents test results of cement paste and binders with admixture of hydrophilic or hydrophobic nanosilica. The aim of the study was to determine the influence of nanosilica type and mixing method on compressive strength, porosity, and bulk density of cement paste, also on hydration heat...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
| Published: |
Polish Academy of Sciences
2020-12-01
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| Series: | Archives of Civil Engineering |
| Subjects: | |
| Online Access: | https://journals.pan.pl/Content/118204/PDF/10_ACE00021.V4_B5.pdf |
| _version_ | 1811314623106777088 |
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| author | J. Popławski M. Lelusz |
| author_facet | J. Popławski M. Lelusz |
| author_sort | J. Popławski |
| collection | DOAJ |
| description | This article presents test results of cement paste and binders with admixture of hydrophilic or hydrophobic nanosilica. The aim of the study was to determine the influence of nanosilica type and mixing method on compressive strength, porosity, and bulk density of cement paste, also on hydration heat of cement binders. The binder compounds were mixed in high speed mixer in order to provide the highest possible dispersion of nanoparticles in the binder before adding it to mixing water. Two mixing methods were studied. The admixtures increased the reactivity of cement binders. Both nanosilica types increased early compressive strength by 25% in comparison with control series. The increase in 28-day compressive strength was observed with the admixture of hydrophilic nanosilica. The differences in dynamics of binders rate of hydration and development of cement pastes compressive strength denote different reaction mechanisms of both types of nanosilica. Application of higher rotation speeds does not guarantee satisfactory mixing of the binder components. For compressive strength enhancement of cement paste prolonged mixing time occurred to be more important. |
| first_indexed | 2024-04-13T11:15:48Z |
| format | Article |
| id | doaj.art-9c17fb085c7146408a8c4e369bc129d2 |
| institution | Directory Open Access Journal |
| issn | 2300-3103 |
| language | English |
| last_indexed | 2024-04-13T11:15:48Z |
| publishDate | 2020-12-01 |
| publisher | Polish Academy of Sciences |
| record_format | Article |
| series | Archives of Civil Engineering |
| spelling | doaj.art-9c17fb085c7146408a8c4e369bc129d22022-12-22T02:49:00ZengPolish Academy of SciencesArchives of Civil Engineering2300-31032020-12-01Vol. 66No 4169181https://doi.org/10.24425/ace.2020.135215Influence of Different Types of Nanosilica on Compressive Strength Development of Cement Matrix CompositesJ. PopławskiM. LeluszThis article presents test results of cement paste and binders with admixture of hydrophilic or hydrophobic nanosilica. The aim of the study was to determine the influence of nanosilica type and mixing method on compressive strength, porosity, and bulk density of cement paste, also on hydration heat of cement binders. The binder compounds were mixed in high speed mixer in order to provide the highest possible dispersion of nanoparticles in the binder before adding it to mixing water. Two mixing methods were studied. The admixtures increased the reactivity of cement binders. Both nanosilica types increased early compressive strength by 25% in comparison with control series. The increase in 28-day compressive strength was observed with the admixture of hydrophilic nanosilica. The differences in dynamics of binders rate of hydration and development of cement pastes compressive strength denote different reaction mechanisms of both types of nanosilica. Application of higher rotation speeds does not guarantee satisfactory mixing of the binder components. For compressive strength enhancement of cement paste prolonged mixing time occurred to be more important.https://journals.pan.pl/Content/118204/PDF/10_ACE00021.V4_B5.pdfcementnanosilicaadmixturenanoparticlespaste |
| spellingShingle | J. Popławski M. Lelusz Influence of Different Types of Nanosilica on Compressive Strength Development of Cement Matrix Composites Archives of Civil Engineering cement nanosilica admixture nanoparticles paste |
| title | Influence of Different Types of Nanosilica on Compressive Strength Development of Cement Matrix Composites |
| title_full | Influence of Different Types of Nanosilica on Compressive Strength Development of Cement Matrix Composites |
| title_fullStr | Influence of Different Types of Nanosilica on Compressive Strength Development of Cement Matrix Composites |
| title_full_unstemmed | Influence of Different Types of Nanosilica on Compressive Strength Development of Cement Matrix Composites |
| title_short | Influence of Different Types of Nanosilica on Compressive Strength Development of Cement Matrix Composites |
| title_sort | influence of different types of nanosilica on compressive strength development of cement matrix composites |
| topic | cement nanosilica admixture nanoparticles paste |
| url | https://journals.pan.pl/Content/118204/PDF/10_ACE00021.V4_B5.pdf |
| work_keys_str_mv | AT jpopławski influenceofdifferenttypesofnanosilicaoncompressivestrengthdevelopmentofcementmatrixcomposites AT mlelusz influenceofdifferenttypesofnanosilicaoncompressivestrengthdevelopmentofcementmatrixcomposites |