Creep and Shrinkage Behaviour of Disintegrated and Non-Disintegrated Cement Mortar
One way to prevent cement from ending up in landfills after its shelf life is to regain its activity and reuse it as a binder. As has been discovered, milling by planetary ball mill is not effective. Grinding by collision is considered a more efficient way to refine brittle material and, in the case...
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MDPI AG
2021-12-01
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| Series: | Materials |
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| Online Access: | https://www.mdpi.com/1996-1944/14/24/7510 |
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| author | Rihards Gailitis Beata Figiela Kalvis Abelkalns Andina Sprince Genadijs Sahmenko Marta Choinska Martin Duarte Guigou |
| author_facet | Rihards Gailitis Beata Figiela Kalvis Abelkalns Andina Sprince Genadijs Sahmenko Marta Choinska Martin Duarte Guigou |
| author_sort | Rihards Gailitis |
| collection | DOAJ |
| description | One way to prevent cement from ending up in landfills after its shelf life is to regain its activity and reuse it as a binder. As has been discovered, milling by planetary ball mill is not effective. Grinding by collision is considered a more efficient way to refine brittle material and, in the case of cement, to regain its activity. There has been considerable research regarding the partial replacement of cement using disintegrated cement in mortar or concrete in the past few decades. This article determines and compares the creep and shrinkage properties of cement mortar specimens made from old disintegrated, old non-disintegrated, and new non-disintegrated Portland cement. The tests show that the creep strains for old disintegrated and old non-disintegrated cement mortars are close, within a 2% margin of each other. However, the creep strains for new non-disintegrated cement mortar are 30% lower. Shrinkage for old disintegrated and non-disintegrated cement mortar is 20% lower than for new non-disintegrated cement mortar. The research shows that disintegration is a viable procedure to make old cement suitable for structural application from a long-term property standpoint. Additionally, it increases cement mortar compressive strength by 49% if the cement is disintegrated together with sand. |
| first_indexed | 2024-03-10T03:41:35Z |
| format | Article |
| id | doaj.art-fa345994341048a993121479fc0b9b87 |
| institution | Directory Open Access Journal |
| issn | 1996-1944 |
| language | English |
| last_indexed | 2024-03-10T03:41:35Z |
| publishDate | 2021-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Materials |
| spelling | doaj.art-fa345994341048a993121479fc0b9b872023-11-23T09:18:58ZengMDPI AGMaterials1996-19442021-12-011424751010.3390/ma14247510Creep and Shrinkage Behaviour of Disintegrated and Non-Disintegrated Cement MortarRihards Gailitis0Beata Figiela1Kalvis Abelkalns2Andina Sprince3Genadijs Sahmenko4Marta Choinska5Martin Duarte Guigou6Faculty of Civil Engineering, Riga Technical University, Kalku 1, LV-1658 Riga, LatviaFaculty of Materials Engineering and Physics, Cracow University of Technology, Al. Jana Pawła II 37, 31-864 Kraków, PolandFaculty of Civil Engineering, Riga Technical University, Kalku 1, LV-1658 Riga, LatviaFaculty of Civil Engineering, Riga Technical University, Kalku 1, LV-1658 Riga, LatviaFaculty of Civil Engineering, Riga Technical University, Kalku 1, LV-1658 Riga, LatviaResearch Institute in Civil and Mechanical Engineering GeM—UMR CNRS 6183, 58, Nantes University—IUT Saint-Nazaire, Rue Michel Ange, 44 600 Saint Nazaire, FranceDepartment of Engineering and Technology, Catholic University of Uruguay, Av. 8 de Octubre 2738, Montevideo 11600, UruguayOne way to prevent cement from ending up in landfills after its shelf life is to regain its activity and reuse it as a binder. As has been discovered, milling by planetary ball mill is not effective. Grinding by collision is considered a more efficient way to refine brittle material and, in the case of cement, to regain its activity. There has been considerable research regarding the partial replacement of cement using disintegrated cement in mortar or concrete in the past few decades. This article determines and compares the creep and shrinkage properties of cement mortar specimens made from old disintegrated, old non-disintegrated, and new non-disintegrated Portland cement. The tests show that the creep strains for old disintegrated and old non-disintegrated cement mortars are close, within a 2% margin of each other. However, the creep strains for new non-disintegrated cement mortar are 30% lower. Shrinkage for old disintegrated and non-disintegrated cement mortar is 20% lower than for new non-disintegrated cement mortar. The research shows that disintegration is a viable procedure to make old cement suitable for structural application from a long-term property standpoint. Additionally, it increases cement mortar compressive strength by 49% if the cement is disintegrated together with sand.https://www.mdpi.com/1996-1944/14/24/7510creepshrinkagelong-term propertiesdisintegrated cementnon-disintegrated cement |
| spellingShingle | Rihards Gailitis Beata Figiela Kalvis Abelkalns Andina Sprince Genadijs Sahmenko Marta Choinska Martin Duarte Guigou Creep and Shrinkage Behaviour of Disintegrated and Non-Disintegrated Cement Mortar Materials creep shrinkage long-term properties disintegrated cement non-disintegrated cement |
| title | Creep and Shrinkage Behaviour of Disintegrated and Non-Disintegrated Cement Mortar |
| title_full | Creep and Shrinkage Behaviour of Disintegrated and Non-Disintegrated Cement Mortar |
| title_fullStr | Creep and Shrinkage Behaviour of Disintegrated and Non-Disintegrated Cement Mortar |
| title_full_unstemmed | Creep and Shrinkage Behaviour of Disintegrated and Non-Disintegrated Cement Mortar |
| title_short | Creep and Shrinkage Behaviour of Disintegrated and Non-Disintegrated Cement Mortar |
| title_sort | creep and shrinkage behaviour of disintegrated and non disintegrated cement mortar |
| topic | creep shrinkage long-term properties disintegrated cement non-disintegrated cement |
| url | https://www.mdpi.com/1996-1944/14/24/7510 |
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