Study of the Course of Cement Hydration in the Presence of Waste Metal Particles and Pozzolanic Additives
Abstract
:1. Introduction
2. Materials and Research Methods
3. Results
3.1. Fresh Mortar Properties
3.1.1. Calorimetric Investigations
3.1.2. Ultrasound Propagation Velocity Method
3.2. Properties of Hardened Samples
3.2.1. Density and UPV
3.2.2. Microstructure
3.2.3. Compressive Strength Tests
3.2.4. Water Absorption Test
3.2.5. Sorptivity Test
4. Conclusions
Author Contributions
Funding
Institutional Review Board Statement
Informed Consent Statement
Data Availability Statement
Conflicts of Interest
References
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Components | Chemical Composition (%) | |||||||
---|---|---|---|---|---|---|---|---|
SiO2 | Al2O3 | Fe2O3 | CaO | MgO | K2O + Na2O | C | LOI | |
Portland cement | 20.8 | 6.12 | 3.37 | 63.5 | – | 1.03 | – | 0.30 |
Microsilica | 98.0 | 0.30 | 0.05 | 0.30 | 0.10 | 0.30 | 0.40 | 0.60 |
Metakaolin | 52.1 | 45.6 | 0.50 | 0.20 | 0.20 | 0.30 | – | 1.10 |
Aggregate | Fraction | Particle Density, kg/m3 | Water Adsorption, % | Bulk Density, kg/m3 |
---|---|---|---|---|
Sand | 0/4 | 2345 | 0.53 | 1595 |
Batch | Components | |||||
---|---|---|---|---|---|---|
PC | Sand Fraction 0/1 | Microsilica | Metakaolin | WMP | W/S | |
BM-0 | 35 | 65 | – | – | – | 0.45 |
BM-1 | 35 | 20 | – | – | 45 | 0.45 |
BM-2 | 35 | – | 20 | – | 45 | 0.45 |
BM-3 | 35 | – | – | 20 | 45 | 0.45 |
BM-4 | 35 | – | 10 | 10 | 45 | 0.45 |
Batch | Components | |||||
---|---|---|---|---|---|---|
PC | Sand Fraction 0/4 | Microsilica | Metakaolin | WMP | W/C | |
P0 | 20 | 80 | – | – | – | 0.55 |
PA | 20 | 35 | – | – | 45 | 0.55 |
PAS | 20 | 25 | 10 | – | 45 | 0.58 |
PAMK | 20 | 25 | – | 10 | 45 | 0.58 |
PASMK | 20 | 25 | 5 | 5 | 45 | 0.58 |
Batch | Testing Age in Days | Compressive Strength (MPa) | SD (MPa) | COV (%) |
---|---|---|---|---|
P0 | 2 | 27.3 | 1.42 | 5.22 |
7 | 32.5 | 2.29 | 7.06 | |
28 | 41.5 | 1.26 | 3.04 | |
PA | 2 | 21.8 | 1.29 | 5.90 |
7 | 25.6 | 1.79 | 7.02 | |
28 | 35.7 | 1.46 | 4.08 | |
PAS | 2 | 25.1 | 1.18 | 4.71 |
7 | 29.9 | 1.89 | 6.34 | |
28 | 42.8 | 1.67 | 3.89 | |
PAMK | 2 | 23.9 | 0.93 | 3.90 |
7 | 28.3 | 2.22 | 7.87 | |
28 | 44.0 | 1.68 | 3.81 | |
PASMK | 2 | 25.1 | 0.63 | 2.52 |
7 | 33.4 | 1.93 | 5.78 | |
28 | 46.6 | 1.87 | 4.03 |
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Pundienė, I.; Pranckevičienė, J.; Kligys, M.; Girskas, G. Study of the Course of Cement Hydration in the Presence of Waste Metal Particles and Pozzolanic Additives. Materials 2022, 15, 2925. https://doi.org/10.3390/ma15082925
Pundienė I, Pranckevičienė J, Kligys M, Girskas G. Study of the Course of Cement Hydration in the Presence of Waste Metal Particles and Pozzolanic Additives. Materials. 2022; 15(8):2925. https://doi.org/10.3390/ma15082925
Chicago/Turabian StylePundienė, Ina, Jolanta Pranckevičienė, Modestas Kligys, and Giedrius Girskas. 2022. "Study of the Course of Cement Hydration in the Presence of Waste Metal Particles and Pozzolanic Additives" Materials 15, no. 8: 2925. https://doi.org/10.3390/ma15082925