2019
DOI: 10.1016/j.cemconres.2019.02.007
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Performance of reactive MgO concrete under increased CO2 dissolution

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Cited by 70 publications
(21 citation statements)
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“…9 shows the effect of 1% and 2% seed addition into the AAS mortar with and without the use of NC. Along with the findings of previous studies, where it was revealed that high seed contents were not effective due to dispersion issues [24,25], only up to 2% seed addition was investigated in this study. Although the seed dosage had a little effect on the yield stress of both mixes, its influence on increasing the rate of change of yield stress over time, which can enhance the buildability of the printed structure without the need for any additional admixtures, should be evaluated before any final conclusions on the effectiveness of seeds could be made.…”
Section: Time-dependent Rheological Propertiesmentioning
confidence: 79%
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“…9 shows the effect of 1% and 2% seed addition into the AAS mortar with and without the use of NC. Along with the findings of previous studies, where it was revealed that high seed contents were not effective due to dispersion issues [24,25], only up to 2% seed addition was investigated in this study. Although the seed dosage had a little effect on the yield stress of both mixes, its influence on increasing the rate of change of yield stress over time, which can enhance the buildability of the printed structure without the need for any additional admixtures, should be evaluated before any final conclusions on the effectiveness of seeds could be made.…”
Section: Time-dependent Rheological Propertiesmentioning
confidence: 79%
“…Previous studies [24][25][26] Fig. 9 shows the effect of 1% and 2% seed addition into the AAS mortar with and without the use of NC.…”
Section: Time-dependent Rheological Propertiesmentioning
confidence: 99%
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“…This reactive MgO can be produced by the calcination of magnesite (MgCO 3 ) at much lower temperatures (700 to 1000 °C) than those used in the production of Portland cement [ 6 ]. In addition, concrete produced with MgO can allow permanent sequestration of CO 2 over its lifetime, thus partly offsetting the CO 2 emitted in its production phase [ 7 ]. As well as this environmental advantage, concrete with reactive MgO may behave better in some aspects, e.g., in terms of shrinkage [ 8 ].…”
Section: Introductionmentioning
confidence: 99%
“…MgO has primarily been used in dam and airport pavement to reduce shrinkage cracks. Many researchers have proved that MgO concrete is superior to ordinary concrete in terms of carbonization resistance, chloride ion penetration resistance, sulfate corrosion resistance, and freeze-thaw cycle, which means that MgO can also be used in bridges to achieve the purpose of inhibiting shrinkage cracks [ 25 , 26 , 27 , 28 , 29 , 30 , 31 ]. In the previous study, our research team invented steel fiber reinforced MgO concrete (SMC) by using both MgO and steel fiber [ 32 ].…”
Section: Introductionmentioning
confidence: 99%