Influence of dipotassium hydrogen phosphate on properties of magnesium potassium phosphate cement

Wang, Miaomiao; Liang, Lirong; Liu, Qing; Liang, Xiaoxu; Guo, Hongda; Li, Zongjin; Liang, Rui; Sun, Guoxing

doi:10.1016/j.conbuildmat.2021.126283

Cited by 14 publications

(3 citation statements)

References 31 publications

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“…Then a layer of maintenance film was laid on top of the test block, and the mold was removed promptly after 1 h and naturally maintained until the experimental age. According to existing studies [6,22,23], the raw material mass ratios M(MgO): M(KH 2 PO 4 ) (M:P) were chosen to be 2:1, 3:1, and 4:1, respectively, and the fly ash (FA) was blended at 5%, 10%, and 15%, respectively. In addition, silica fume (SF) was added to control the doping material to 20% of the total cementitious material, and the test fixed water-cement ratio (W/C) was 0.18 and the sand-cement ratio was 0.6.…”

Section: Preparation Of Specimens and Test Methodsmentioning

confidence: 99%

“…Potassium magnesium phosphate cement (MKPC) is a new type of cementitious material made of potassium dihydrogen phosphate (KH 2 PO 4 ), heavy-burning magnesium oxide (MgO), and retarder in a certain ratio [5][6][7]. Its main product is guano stone (MgKPO 4 -6H 2 O), which has the characteristics of rapid setting and high early strength and is usually used for the rapid repair works of concrete structures [8][9][10][11][12].…”

Section: Introductionmentioning

confidence: 99%

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High-Temperature Resistance of Modified Potassium Magnesium Phosphate Cement

et al. 2022

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To study the high-temperature mechanical properties of potassium magnesium phosphate cement mortar and the high-temperature resistance of its laminates. Potassium magnesium phosphate cement (MKPC) was prepared by using heavy-burning magnesium oxide and potassium dihydrogen phosphate as the main raw materials, borax as the retarder, and compounded with a certain amount of fly ash and silica fume. The effect of the mass ratio of magnesium to phosphorus (M:P), compounded fly ash and silica fume on the setting time and mechanical properties of MKPC was investigated. Furthermore, based on the better M:P, the compressive strength of MKPC mortar was studied after 3 h of constant temperature at 400 °C, 600 °C, and 800 °C, and the effect of fly ash and silica fume on the high-temperature resistance of MKPC was analyzed. The high-temperature resistance of MKPC was further evaluated by analyzing the temperature variation of potassium magnesium phosphate cement laminate during a constant temperature of 650 °C for 3 h. The results showed that the mechanical properties of potassium magnesium phosphate cement were influenced by different raw material ratios, and the mechanical properties of potassium magnesium phosphate cement were optimal when M:P was 2:1, fly ash was 5% and silica fume was 15%. The internal temperature of MKPC laminate increased slowly with time, and its high-temperature resistance was better.

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Section: Preparation Of Specimens and Test Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

High-Temperature Resistance of Modified Potassium Magnesium Phosphate Cement

et al. 2022

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“…In both graphs, the different bar colors indicate the precursor powder: light blue (MgO), pink (Mg 3 (PO 4 ) 2 , and orange (others). The references mentioned in the figure are the following: [ 33 , 57 , 58 , 60 , 63 , 79 , 81 , 97 , 108 , 109 , 117 , 118 , 132 , 133 , 134 , 137 , 138 , 139 , 140 , 141 , 144 , 145 , 146 , 147 , 148 , 149 , 150 , 151 , 152 , 156 , 157 , 158 , 161 , 162 ].…”

Section: Figurementioning

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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