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Study on binary and ternary systems with cement, hydrated lime and fly ash: thermogravimetric analysis, mechanical analysis and durability behaviour
- Source :
- Materiales de Construccion, Vol 73, Iss 351 (2023)
- Publication Year :
- 2023
- Publisher :
- Consejo Superior de Investigaciones Científicas, 2023.
-
Abstract
- The use of high percentages of substitution of Portland cement by pozzolans can provoke the total consumption of portlandite. The present research proposes the study of ternary systems of Portland cement (PC), fly ash (FA), and hydrated lime (CH). After 180 days of curing, the mortar with 50% substitution of PC by FA obtained 65.9 MPa versus the mortars with an addition of 20% of CH and control mortar (100 PC) that obtained 69.9 MPa and 76.7 MPa respectively: this behavior is very positive value considering that tested FA containing mortars had a 50% of Portland cement. Regarding the effect of the amount of extra hydrated lime on durability issues, the evolution against carbonation of PC-FA and PC-CH-FA mortars was studied: the reduction of carbonation velocity was around a 37% for the mortar with CH respect the PC-FA mortar.
Details
- Language :
- English, Spanish; Castilian
- ISSN :
- 04652746 and 19883226
- Volume :
- 73
- Issue :
- 351
- Database :
- Directory of Open Access Journals
- Journal :
- Materiales de Construccion
- Publication Type :
- Academic Journal
- Accession number :
- edsdoj.14748f7359e4747b129dba7eba87b2a
- Document Type :
- article
- Full Text :
- https://doi.org/10.3989/mc.2023.346623