Influence of carbonation curing on hydration and microstructure of magnesium potassium phosphate cement concrete

Jeon, In Kyu; Qudoos, Abdul; Kim, Hong Gi

doi:10.1016/j.jobe.2021.102203

Cited by 15 publications

(7 citation statements)

References 49 publications

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“…For this purpose, the role of additives that could prolong the setting time and in turn increase the workability and moldability of cements has been investigated in the literature. The data summarized in Table 2 show that by far the most widely investigated retarder for MPCs is borax (Na 2 B 4 O 7 ·10H 2 O)/boric acid (H 3 BO 3 ), in both the biomedical [ 57 , 58 , 63 , 77 , 126 , 135 ] and (particularly) construction fields [ 59 , 62 , 64 , 65 , 66 , 67 , 68 , 70 , 71 , 72 , 73 , 74 , 75 , 76 , 77 , 80 , 82 , 83 , 84 , 85 , 86 , 87 , 89 , 90 , 91 , 92 , 101 , 102 , 104 , 107 , 112 , 113 , 116 , 119 , 120 , 124 , 128 , 129 , 130 , 131 , 136 ]. Borax was in fact traditionally used to delay the setting time of MgO-based MPCs, and its setting mechanism has been well investigated in the literature, from both an experimental and a theoretical perspective [ ...…”

Section: Modifications Of Mpcsmentioning

confidence: 99%

An Overview of Magnesium-Phosphate-Based Cements as Bone Repair Materials

Gelli,

Ridi

2023

JFB

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In the search for effective biomaterials for bone repair, magnesium phosphate cements (MPCs) are nowadays gaining importance as bone void fillers thanks to their many attractive features that overcome some of the limitations of the well-investigated calcium-phosphate-based cements. The goal of this review was to highlight the main properties and applications of MPCs in the orthopedic field, focusing on the different types of formulations that have been described in the literature, their main features, and the in vivo and in vitro response towards them. The presented results will be useful to showcase the potential of MPCs in the orthopedic field and will suggest novel strategies to further boost their clinical application.

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Section: Modifications Of Mpcsmentioning

confidence: 99%

An Overview of Magnesium-Phosphate-Based Cements as Bone Repair Materials

Gelli,

Ridi

2023

JFB

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“…Concrete is a widely used building material due to its high compressive strength, durability, and low cost [ 1 , 2 , 3 , 4 ]. However, traditional concrete has poor permeability, which leads to issues such as water accumulation, cracking, and spalling [ 5 , 6 , 7 , 8 ].…”

Section: Introductionmentioning

confidence: 99%

Feasibility Study of Pervious Concrete with Ceramsite as Aggregate Considering Mechanical Properties, Permeability, and Durability

Gao

Huang²,

Chu

et al. 2023

Materials

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Concrete with light weight and pervious performance has been widely recognized as an effective and sustainable solution for reducing the negative impacts of urbanization on the environment, as it plays a positive role in urban road drainage, alleviating the urban heat island effect and thermal insulation, as well as seismic performance, etc. This research paper presents a feasibility study of pervious concrete preparation with ceramsite as aggregate. First, pervious concrete specimens with different types of aggregates at various water–cement ratios were prepared, and the mechanical properties of pervious concrete specimens were evaluated based on the compressive strength test. Then, the permeability properties of the pervious concrete specimens with different types of aggregates at various water–cement ratios were characterized. Meanwhile, statistical analysis and regression fitting were conducted. Finally, the analysis of the freeze–thaw durability of pervious concrete specimens with ceramsite as aggregate according to indexes including quality loss rate and strength loss rate was performed. The results show that as the water–cement ratio increased, the compressive strength and permeability coefficient of pervious concrete generally decreased. Compressive strength and permeability coefficient showed a great correlation with the water–cement ratio; the R2 values of the models were around 0.94 and 0.9, showing good regression. Compressive strength was mainly provided by the strength of the aggregates, with high-strength clay ceramsite having the highest 28-day compressive strength value, followed by ordinary crushed-stone aggregates and lightweight ceramsite. Porosity was mainly influenced by the particle size and shape of the aggregates. Lightweight ceramsite had the highest permeability coefficient among different types of cement-bound aggregates, followed by high-strength clay ceramsite and ordinary crushed-stone aggregates. The quality and compressive strength of pervious concrete specimens decreased with the increase in freeze–thaw cycles; the quality loss was 1.52%, and the compressive strength loss rate was 6.84% after 25 freeze–thaw cycles. Quadratic polynomial regression analysis was used to quantify the relationship of durability and freeze–thaw cycles, with R2 of around 0.98. The results provide valuable insights into the potential applications and benefits of using ceramsite as an aggregate material in pervious concrete for more sustainable and durable infrastructure projects.

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“…Previous studies of the mineral carbonation of cement clinkers reported that if early-age carbonation curing is applied to concrete, it not only improves the mechanical properties of concrete, such as the compressive strength, the drying shrinkage, and the densification of the pore structure, but also accelerates the strength development rate [1,18]. Several studies have sought to determine the effects of carbonation curing on various types of cement-based materials, as well as ordinary Portland cement, which is commonly used [19][20][21]. Jeon et al reported that carbonation curing could have a positive effect on the hydration and microstructure of concrete [19], and Qin et al reported that the application of carbonation curing to concrete manufactured by replacing parts of the cement with limestone powder, fly ash, or blast furnace slag could improve the compressive strength of concrete [20].…”

Section: Introductionmentioning

confidence: 99%

“…Several studies have sought to determine the effects of carbonation curing on various types of cement-based materials, as well as ordinary Portland cement, which is commonly used [19][20][21]. Jeon et al reported that carbonation curing could have a positive effect on the hydration and microstructure of concrete [19], and Qin et al reported that the application of carbonation curing to concrete manufactured by replacing parts of the cement with limestone powder, fly ash, or blast furnace slag could improve the compressive strength of concrete [20]. Meanwhile, Jang and Lee reported that the effect of carbonation curing on belite-rich cement concrete is more noticeable [21].…”

Section: Introductionmentioning

confidence: 99%

Effects of the Curing Conditions on the Carbonation Curing Efficiency of Ordinary Portland Cement and a Belite-Rich Cement Mortar

Kim¹,

Pei²,

Siddique³

et al. 2021

Sustainability

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In the present study, the efficiency of five different carbonation and/or water curing conditions on the properties of belite-rich cement mortar and ordinary Portland cement mortar was investigated. The hybrid curing of samples was carried out by submerging samples at different levels in water or in a lime-saturated solution kept under carbonation curing conditions. The compressive strength was measured to compare the physical properties of the cement mortars, and X-ray diffraction and thermogravimetric analysis results were analyzed to compare the physicochemical properties. The results revealed that the supply of additional moisture during carbonation curing tends to decrease carbonation curing efficiency and that the hydration products of cement paste are predominantly affected by the depth at which the specimen was immersed in the liquid rather than the type of liquid used.

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Influence of carbonation curing on hydration and microstructure of magnesium potassium phosphate cement concrete

Cited by 15 publications

References 49 publications

An Overview of Magnesium-Phosphate-Based Cements as Bone Repair Materials

An Overview of Magnesium-Phosphate-Based Cements as Bone Repair Materials

Feasibility Study of Pervious Concrete with Ceramsite as Aggregate Considering Mechanical Properties, Permeability, and Durability

Effects of the Curing Conditions on the Carbonation Curing Efficiency of Ordinary Portland Cement and a Belite-Rich Cement Mortar

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