Influence of Fly Ash Additive on the Properties of Concrete with Slag Cement
This paper presents research on the impact of fly ash addition on selected physical and mechanical parameters of concrete made with slag cement. Experimental tests were carried out to measure the migration of chloride ions in concrete, the tightness of concrete exposed to water under pressure, and t...
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| Format: | Article |
| Language: | English |
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MDPI AG
2020-07-01
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| Series: | Materials |
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| Online Access: | https://www.mdpi.com/1996-1944/13/15/3265 |
| _version_ | 1797561553880350720 |
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| author | Anna Szcześniak Jacek Zychowicz Adam Stolarski |
| author_facet | Anna Szcześniak Jacek Zychowicz Adam Stolarski |
| author_sort | Anna Szcześniak |
| collection | DOAJ |
| description | This paper presents research on the impact of fly ash addition on selected physical and mechanical parameters of concrete made with slag cement. Experimental tests were carried out to measure the migration of chloride ions in concrete, the tightness of concrete exposed to water under pressure, and the compressive strength and tensile strength of concrete during splitting. Six series of concrete mixes made with CEM IIIA 42.5 and 32.5 cement were tested. The base concrete mix was modified by adding fly ash as a partial cement substitute in the amounts of 25% and 33%. A comparative analysis of the obtained results indicates a significant improvement in tightness, especially in concrete based on CEM IIIA 32.5 cement and resistance to chloride ion penetration for the concretes containing fly ash additive. In the concretes containing fly ash additive, a slower rate of initial strength increase and high strength over a long period of maturation are shown. In accordance with the presented research results, it is suggested that changes to the European standardization system be considered, to allow the use of fly ash additive in concrete made with CEM IIIA 42.5 or 32.5 cement classes. Such a solution is not currently acceptable in standards in some European Countries. |
| first_indexed | 2024-03-10T18:16:33Z |
| format | Article |
| id | doaj.art-07b40801fa024d53a35d8acf8a195032 |
| institution | Directory Open Access Journal |
| issn | 1996-1944 |
| language | English |
| last_indexed | 2024-03-10T18:16:33Z |
| publishDate | 2020-07-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Materials |
| spelling | doaj.art-07b40801fa024d53a35d8acf8a1950322023-11-20T07:39:32ZengMDPI AGMaterials1996-19442020-07-011315326510.3390/ma13153265Influence of Fly Ash Additive on the Properties of Concrete with Slag CementAnna Szcześniak0Jacek Zychowicz1Adam Stolarski2Faculty of Civil Engineering and Geodesy, Military University of Technology, 2 gen. Sylwestra Kaliskiego Street, 00-908 Warsaw, PolandFaculty of Civil Engineering and Geodesy, Military University of Technology, 2 gen. Sylwestra Kaliskiego Street, 00-908 Warsaw, PolandFaculty of Civil Engineering and Geodesy, Military University of Technology, 2 gen. Sylwestra Kaliskiego Street, 00-908 Warsaw, PolandThis paper presents research on the impact of fly ash addition on selected physical and mechanical parameters of concrete made with slag cement. Experimental tests were carried out to measure the migration of chloride ions in concrete, the tightness of concrete exposed to water under pressure, and the compressive strength and tensile strength of concrete during splitting. Six series of concrete mixes made with CEM IIIA 42.5 and 32.5 cement were tested. The base concrete mix was modified by adding fly ash as a partial cement substitute in the amounts of 25% and 33%. A comparative analysis of the obtained results indicates a significant improvement in tightness, especially in concrete based on CEM IIIA 32.5 cement and resistance to chloride ion penetration for the concretes containing fly ash additive. In the concretes containing fly ash additive, a slower rate of initial strength increase and high strength over a long period of maturation are shown. In accordance with the presented research results, it is suggested that changes to the European standardization system be considered, to allow the use of fly ash additive in concrete made with CEM IIIA 42.5 or 32.5 cement classes. Such a solution is not currently acceptable in standards in some European Countries.https://www.mdpi.com/1996-1944/13/15/3265concretefly ashslag cementchloride ion migrationmechanical properties |
| spellingShingle | Anna Szcześniak Jacek Zychowicz Adam Stolarski Influence of Fly Ash Additive on the Properties of Concrete with Slag Cement Materials concrete fly ash slag cement chloride ion migration mechanical properties |
| title | Influence of Fly Ash Additive on the Properties of Concrete with Slag Cement |
| title_full | Influence of Fly Ash Additive on the Properties of Concrete with Slag Cement |
| title_fullStr | Influence of Fly Ash Additive on the Properties of Concrete with Slag Cement |
| title_full_unstemmed | Influence of Fly Ash Additive on the Properties of Concrete with Slag Cement |
| title_short | Influence of Fly Ash Additive on the Properties of Concrete with Slag Cement |
| title_sort | influence of fly ash additive on the properties of concrete with slag cement |
| topic | concrete fly ash slag cement chloride ion migration mechanical properties |
| url | https://www.mdpi.com/1996-1944/13/15/3265 |
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