New magnesium cement optimized in MgO-K2HPO4-SiO2 …

Magnesium phosphate cement (MPC), also known as chemically bonded ceramics [1], has gotten widely attention.MPC exhibits many excellent performances, such as rapid strength enhancement [2], higher fluidity [3], excellent volume stability [4] and strong bonding capacity with old substances [5].MPC is composed of 70–85 % MgO, 10–25 % acidic phosphates and small …

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Research Progress of Magnesium Phosphate Cement Repair …

Magnesium phosphate cement (MPC) is produced by the hydration reaction of magnesium oxide and phosphate, which is a new type of cementitious material combined by …

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Behavior of magnesium phosphate cement with addition of …

Magnesium phosphate cement (MPC) as repair materials of the structures or package materials for wastes may be exposed to elevated temperatures during fire attack. ... China). The chemical compositions of the dead burned MgO and CSA were determined by X-ray fluorescence analysis and presented in Table 1. The particle size distributions of dead ...

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Magnesium malate-modified calcium phosphate bone cement …

Active artificial bone substitutes are crucial in bone repair and reconstruction. Calcium phosphate bone cement (CPC) is known for its biocompatibility, degradability, and ability to fill various shaped bone defects. However, its low osteoinductive capacity limits bone regeneration applications. Effectively integrating osteoinductive magnesium ions with CPC …

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Feasibility analysis of magnesium phosphate cement as a repair …

Excellent properties of magnesium phosphate play a key role in the repair process. This study proposed using magnesium phosphate cement (MPC) to repair the base slab of the …

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The Corrosion Resistance of Reinforced Magnesium …

Magnesium phosphate cement matrix is generally manufactured by combining the magnesium oxide and potassium dihydrogen phosphate [13,14]. This kind of cement ... China is used for making the magnesium phosphate cement (MPC). The purity and density of potassium dihydrogen phosphate are 98.5% and 2.238 g/cm3, respectively. Another power material ...

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Effect of silt modification on the properties of magnesium …

Magnesium phosphate cement (MPC), as a new type of cementitious material, is difficult to be popularized in practical applications due to its short setting time, high cost, and poor water resistance.

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Magnesium-Based Composite Calcium Phosphate Cement …

Calcium phosphate cement (CPC) is an injectable bone cement with excellent biocompatibility, widely used for filling bone defects of various shapes. However, its slow degradation, insufficient mechanical strength, and poor osteoinductivity limit its further clinical applications. In this study, we d …

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The mechanical and conductive properties of intelligent magnesium

Magnesium phosphate cement is a unique cement composite with a quick setting time and excellent compactness [17]. It has been shown that magnesium phosphate cement-based materials are often used as rapid repairing materials. ... Ltd., Qingzhou, China. Density, purity, and water solubility are 2.238 g/cm 3, 98% and 0.226 g/ml, respectively ...

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Optimization of magnesium phosphate cement prepared by …

Optimization of magnesium phosphate cement prepared by natural brucite using ultrafine metakaolin and metakaolin. Author links open overlay panel Shiru Long, Yue Li, Nan Wang, Hui Lin, Zigeng Wang. ... including prominent locations such as China, the United States, and Russia. It is a lamellar mineral with the highest magnesium content ...

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Properties of magnesium phosphate cement reinforced with …

1. Introduction. Magnesium phosphate cement (MPC) is a chemically bonded material that is typically formed via an acid-based reaction of dead-burned magnesium oxide, phosphate, and a retarder [1], [2], [3].Ammonium dihydrogen phosphate (NH 4 H 2 PO 4) has often been used as a source of phosphoric acid in the past.However, its processing and …

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Study On Corrosion Resistance of Magnesium Phosphate …

China Institute of Mountain Hazards and Environment, Chinese Academy of Science, Chengdu, Sichuan 610000, China. 1. Introduction. Magnesium ammonium phosphate cement (MAPC), a new inorganic material, not only has the characteristics of ordinary cement but also has the characteristics of ceramic products after curing.

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Progresses of green magnesium phosphate cement: Production, …

The apparent changes in surfaces of magnesium ammonium phosphate cement (MAPC) and magnesium potassium phosphate cement (MKPC) mortars cured in different conditions at 28 …

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Early properties of magnesium phosphate cement repairing …

Magnesium phosphate cement (MPC) is a high-performance repairing material suitable for the interfacial disease of slab track. In this study, the early properties of MPC were optimized using central composite design (CCD) approach based on response surface methodology (RSM). ... China's high-speed railway has developed rapidly, exceeding 45,000 ...

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Inorganic Acid Resistance Performances of Magnesium Phosphate Cement…

Magnesium phosphate cement (MPC), a cementitious material that hardens through an acid–base reaction, is theoretically expected to exhibit strong acid resistance. However, studies on the durability of MPC in acidic environments remain limited. This study aims to systematically evaluate the acid resistance of MPC in common inorganic acid solutions …

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Sulfuric acid-resistance performances of magnesium phosphate …

Effects of sulfuric acidity (pH = 2–7) on the properties of magnesium ammonium phosphate cement (MAPC) and magnesium potassium phosphate cement (MKPC) were investigated. ... d 90: 27.85 μm) was purchased from Haicheng city, Liaoning Province, China, and its chemical compositions analyzed by X-ray fluorescence (XRF) were shown in Table 1. …

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Research Status and Development Trend of Magnesium …

Research Status and Development Trend of Magnesium Phosphate Cement [J]. BULLETIN OF THE CHINESE CERAMIC SOCIETY, 2017, 36 (4): 1245-1253. …

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Long-term performance of magnesium phosphate cement …

Previous studies have established the strength development of magnesium ammonium phosphate cement (MAPC) concrete and magnesium potassium phosphate …

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Is It Possible to Make Magnesia-Based Cement …

Moreover, the compressive strength of magnesium phosphate cement after curing 3 h was 36 MPa, which was higher than that (e.g., 20–30 MPa after curing 24 h ) of OPC ... In the conventional magnesium industry in …

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A biodegradable magnesium phosphate cement incorporating

Magnesium phosphate cement (MPC), as a artificial bone substitutes, has been a potential biomaterial for repairing bone defects, but its clinical application is limited by …

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Multi-scale analysis of degradation mechanisms in magnesium phosphate

Multi-scale analysis of degradation mechanisms in magnesium phosphate cement paste under wet-dry cycling. Author links open overlay panel Zihan Zhou a b, Haisen Jin a, Qinyuan Liang ... This research was funded by the National Natural Science Foundation of China (No. 52308316) and was supported by Key Laboratory of Rock Mechanics and Geohazards ...

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Study on Bonding Performance of Magnesium Phosphate Cement …

The effects of nano-SiO 2 and hydroxypropyl methyl cellulose (HPMC) on the physical and mechanical properties of magnesium phosphate cement (MPC)-based mortar under salt corrosion environment were studied. The variation of strength under salt corrosion environment was compared and studied. The chloride ion permeability of modified MPC …

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Effect of silt modification on the properties of magnesium phosphate cement

Introduction. Magnesium phosphate cement (MPC) is composed of magnesium oxide, phosphate, retarding agent, and mineral admixture in specific proportions (Qiao et al., 2010; Haque and Chen, 2019).After adding water, the raw materials will undergo an acid-base reaction and hydration reaction, and then harden by physical action of coagulation (Sugama and Kukacka, 1983; Liu …

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A New Magnesium Phosphate Cement Based on Renewable …

Magnesium phosphate cement (MPC), a new type of inorganic cementitious material, is favored in engineering and construction because of its fast setting speed and high …

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Improved osteogenesis and angiogenesis of magnesium-doped …

2 Key Laboratory for Ultrafine Materials of Ministry of Education, East China University of Science and Technology, Shanghai, ... Magnesium-calcium phosphate cement (MCPC) has been reported as a promising candidate for bone repair with promoted osteogenesis both in vitro and in vivo. However, relatively little is known about the effects of MCPC ...

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Effect of titanium slag on the properties of magnesium phosphate cement

The magnesium phosphate cement's hydration products first increased and then decreased with increasing M/P, with the highest values between 2:1 and 3:1. The difference in strength between the two is the different contents of MgO. The matrix interior of MPC consists of K-struvite and unreacted MgO.

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Mechanical and microscopic properties of low alkali …

The use of recycled coarse aggregates (RCAs) in concrete often results in a decrease in mechanical properties due to the poor bonding performance between new and old interfaces. This study impregnated RCA with low-alkali sulfoaluminate (LASAC) and magnesium phosphate cement (MPC) to improve the mechanical properties of RCA, and the axial …

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A biodegradable magnesium phosphate cement incorporating …

Magnesium phosphate cement (MPC), as a artificial bone substitutes, has been a potential biomaterial for repairing bone defects, but its clinical application is limited by insufficient mechanical strength and poor osteoinductive activity. ... This research was financially supported by National Natural Science Foundation of China (No. 52171236 ...

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Preparation and Application of Self-Curing Magnesium Phosphate Cement

The early strength of magnesium phosphate cement (MPC) decreases sharply in severe cold environments ≤−10 °C, with the 2 h compressive strength falling to 3.5 MPa at−20 °C. ... The setting time of the MPC, which was the initial setting time, was measured using a Vicat apparatus (Chongqing, China). The soundness of the MPC was tested ...

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Construction of macroporous magnesium phosphate-based bone cement …

Construction of macroporous magnesium phosphate-based bone cement with sustained drug release. Author links open overlay panel Yanan Zhao a, Suchun Yu a, Xiaopei Wu a, Honglian Dai a b, Wenbin Liu c, Rong Tu a, Takashi Goto a d. ... China), the surface morphology of the composites was analysed by scanning electron microscopy (SEM; S ...

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