Eco-Efficient Hybrid Cements: Pozzolanic, Mechanical and Abrasion Properties
One of the most polluting industries is the cement industry and, for this reason, alternative lines of research recommend the use of substitute materials for traditional Portland cement. This study proposes the use of industrial (slag and fly ash) and ceramic wastes for the total or partial replacem...
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| Format: | Article |
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MDPI AG
2020-12-01
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| Series: | Applied Sciences |
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| Online Access: | https://www.mdpi.com/2076-3417/10/24/8986 |
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| author | Segundo Shagñay Leticia Ramón María Fernández-Álvarez Asunción Bautista Francisco Velasco Manuel Torres-Carrasco |
| author_facet | Segundo Shagñay Leticia Ramón María Fernández-Álvarez Asunción Bautista Francisco Velasco Manuel Torres-Carrasco |
| author_sort | Segundo Shagñay |
| collection | DOAJ |
| description | One of the most polluting industries is the cement industry and, for this reason, alternative lines of research recommend the use of substitute materials for traditional Portland cement. This study proposes the use of industrial (slag and fly ash) and ceramic wastes for the total or partial replacement of Portland cement in the manufacturing of both alkaline-activated and hybrid cements. To carry out this study and evaluate the behavior of the proposed materials, different mortars were manufactured: Portland cement (CEM I), two alkaline-activated slag systems and six hybrid systems, with an 80–20% waste-to-Portland-cement ratio for all the proposed wastes. An assessment of the pozzolanic activity was carried out for the different materials. The behavior of all the systems regarding mechanical resistance and durability to abrasion was studied. All the proposed materials, especially those with ceramic wastes, showed pozzolanic activity and suitable characteristics for use in the manufacturing of alternative cements. The mortar made of slag activated with waterglass presented the highest mechanical strength and lowest porosity, but the hybrid materials presented competitive results. After being subjected to the Böhme abrasion test, their effectiveness as substitutes for Portland cement is reiterated, some of them improving their durability to wear. |
| first_indexed | 2024-03-10T14:01:02Z |
| format | Article |
| id | doaj.art-67b53b39d34a4699944b643b32d54fe5 |
| institution | Directory Open Access Journal |
| issn | 2076-3417 |
| language | English |
| last_indexed | 2024-03-10T14:01:02Z |
| publishDate | 2020-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Applied Sciences |
| spelling | doaj.art-67b53b39d34a4699944b643b32d54fe52023-11-21T01:06:29ZengMDPI AGApplied Sciences2076-34172020-12-011024898610.3390/app10248986Eco-Efficient Hybrid Cements: Pozzolanic, Mechanical and Abrasion PropertiesSegundo Shagñay0Leticia Ramón1María Fernández-Álvarez2Asunción Bautista3Francisco Velasco4Manuel Torres-Carrasco5Materials Sciences and Engineering Department-IAAB, University Carlos III of Madrid, Avda. Universidad 30, Leganés, 28911 Madrid, SpainMaterials Sciences and Engineering Department-IAAB, University Carlos III of Madrid, Avda. Universidad 30, Leganés, 28911 Madrid, SpainMaterials Sciences and Engineering Department-IAAB, University Carlos III of Madrid, Avda. Universidad 30, Leganés, 28911 Madrid, SpainMaterials Sciences and Engineering Department-IAAB, University Carlos III of Madrid, Avda. Universidad 30, Leganés, 28911 Madrid, SpainMaterials Sciences and Engineering Department-IAAB, University Carlos III of Madrid, Avda. Universidad 30, Leganés, 28911 Madrid, SpainMaterials Sciences and Engineering Department-IAAB, University Carlos III of Madrid, Avda. Universidad 30, Leganés, 28911 Madrid, SpainOne of the most polluting industries is the cement industry and, for this reason, alternative lines of research recommend the use of substitute materials for traditional Portland cement. This study proposes the use of industrial (slag and fly ash) and ceramic wastes for the total or partial replacement of Portland cement in the manufacturing of both alkaline-activated and hybrid cements. To carry out this study and evaluate the behavior of the proposed materials, different mortars were manufactured: Portland cement (CEM I), two alkaline-activated slag systems and six hybrid systems, with an 80–20% waste-to-Portland-cement ratio for all the proposed wastes. An assessment of the pozzolanic activity was carried out for the different materials. The behavior of all the systems regarding mechanical resistance and durability to abrasion was studied. All the proposed materials, especially those with ceramic wastes, showed pozzolanic activity and suitable characteristics for use in the manufacturing of alternative cements. The mortar made of slag activated with waterglass presented the highest mechanical strength and lowest porosity, but the hybrid materials presented competitive results. After being subjected to the Böhme abrasion test, their effectiveness as substitutes for Portland cement is reiterated, some of them improving their durability to wear.https://www.mdpi.com/2076-3417/10/24/8986abrasion behavioralkali-activated materialshybrid materials |
| spellingShingle | Segundo Shagñay Leticia Ramón María Fernández-Álvarez Asunción Bautista Francisco Velasco Manuel Torres-Carrasco Eco-Efficient Hybrid Cements: Pozzolanic, Mechanical and Abrasion Properties Applied Sciences abrasion behavior alkali-activated materials hybrid materials |
| title | Eco-Efficient Hybrid Cements: Pozzolanic, Mechanical and Abrasion Properties |
| title_full | Eco-Efficient Hybrid Cements: Pozzolanic, Mechanical and Abrasion Properties |
| title_fullStr | Eco-Efficient Hybrid Cements: Pozzolanic, Mechanical and Abrasion Properties |
| title_full_unstemmed | Eco-Efficient Hybrid Cements: Pozzolanic, Mechanical and Abrasion Properties |
| title_short | Eco-Efficient Hybrid Cements: Pozzolanic, Mechanical and Abrasion Properties |
| title_sort | eco efficient hybrid cements pozzolanic mechanical and abrasion properties |
| topic | abrasion behavior alkali-activated materials hybrid materials |
| url | https://www.mdpi.com/2076-3417/10/24/8986 |
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