A study on mechanical and physical properties of monocalcium aluminate cement reinforced with nano-SiO2 particles

Shiri, Sheida; Abbasi, Mohsen; Monshi, A.; Karimzadeh, F.

doi:10.1016/j.compositesb.2013.08.057

Cited by 24 publications

(20 citation statements)

References 16 publications

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“…But compared with pure cement paste, the matrix interface and structure level of mortar is more complex and the application scope is more extensive. The mechanical and microstructure of cementitious composites are influence size, type, content and distribution of reinforcing additives [9,[20][21][22][23] as well as interfacial bond between matrix and reinforcing material [10,[24][25][26]. Therefore, the effect of CaCO 3 whisker on microstructural and mechanical properties of cement mortar is also necessary to study which will provide a good foundation for the research and application of whisker in cementitious composites.…”

Section: Research Significancementioning

confidence: 99%

“…The traditional cement based materials are very brittle and have a low tensile strength [1,2]. The different commercial fibers are used as reinforcement in cementitious composites to reduce the brittleness under static and dynamic loading [3][4][5][6][7][8][9]. On the other hand, high production cost of fiber in large scale construction had limited the use of fiber in cementitious composites [1].…”

Section: Introductionmentioning

confidence: 99%

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Effectiveness of Calcium Carbonate Whisker in Cementitious Composites

Cao

Khan

Ahmed

2020

Period. Polytech. Civil Eng.

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Cementitious composites are porous material having complex structure system consist of hydration products, un-hydrated cement particles and pore solutions of various scales. Calcium carbonate whisker is a new type of low cost micro-scale filler fiber gaining popularity in the field of construction materials. However, addition of whisker has effect on physical, mechanical and microstructural characteristics of cementitious composites. Also, the low production cost of whisker will make the use of micro fiber more extensive in large scale construction projects. In this study, the effect of calcium carbonate whisker on physical, mechanical and microstructural properties of cementitious composites with different fiber contents are investigated. The fluidity, drying shrinkage, pore structure, impact resistance, compressive, flexural and splitting-tensile strength of whisker-mortar are considered. The scanning electron microscopy analysis is also performed to examine the microstructural and toughening mechanism of whisker reinforced composites.It was concluded that the addition of calcium carbonate whisker up to 10 % improves the physical and mechanical properties of cementitious composites and is suggested to be the optimize content. The calcium carbonate whisker also resists the crack propagation at micro scale and showed the toughening mechanism with better interfacial properties between whisker and matrix.

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Section: Research Significancementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Effectiveness of Calcium Carbonate Whisker in Cementitious Composites

Cao

Khan

Ahmed

2020

Period. Polytech. Civil Eng.

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“…The microstructure and mechanical properties of cement depend on the type, size, distribution and content of the reinforcing additives [5][6][7][8] as well as interfacial adhesion between the cement and reinforcing additives [9][10][11]. In addition, the hybrid combination of different types of reinforcing additives have attracted great interests because they restrain cracking at different scales of the cracking process and offer potential advantages improving concrete properties as well as reducing the overall cost of concrete production [5,[12][13][14][15][16].…”

Section: Introductionmentioning

confidence: 99%

Hybrid effect of calcium carbonate whisker and carbon fiber on the mechanical properties and microstructure of oil well cement

Yang

et al. 2015

Construction and Building Materials

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“…When the amount of nano-silica increases to more than 10% in the CA cement, the intensities of the characteristic peaks of C 2 ASH 8 are slightly diminished. This could be explained by the fact that when the percentages of nano-SiO 2 increase, the agglomeration of nanoparticles occurs and disrupts the hydration process [19].…”

Section: Resultsmentioning

confidence: 99%

“…Similarly, Shiri et al. showed that nano-silica in mono-calcium aluminate improved its workability and strength [19].…”

Section: Introductionmentioning

confidence: 93%

Influence of nano-silica additions on hydration characteristics and cytotoxicity of calcium aluminate as biomaterial

El-Hamid

Radwan

2019

Heliyon

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Composites of nano-calcium aluminate 'CA' biocement, synthesized by a solid state reaction, were prepared with 5, 10 and 20 wt.% of nano-SiO 2 particles. The influence of nano-SiO 2 particle additions on the physico-mechanical properties and hydration characteristics of CA biocement was studied. Calcium ion concentrations and, pH values of the curing medium were measured. The hydration characteristics of pure and composite CA phase were studied by determining the X-ray diffraction (XRD) and scanning electron microscopy (SEM) coupled with energy dispersive spectroscopy (EDS). Evaluation of cytotoxicity against the skin normal human cell line BJ-1 was carried out. The results showed that the bulk density and micro-hardness of the composite CA containing 10 wt.% of nano-SiO 2 were better than those of pure CA and composite prepared with higher weight percentages of nano-SiO 2 . Both pure and composite CA bio-cements showed no cytotoxicity, making these materials suitable for medical applications.

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A study on mechanical and physical properties of monocalcium aluminate cement reinforced with nano-SiO2 particles

Cited by 24 publications

References 16 publications

Effectiveness of Calcium Carbonate Whisker in Cementitious Composites

Effectiveness of Calcium Carbonate Whisker in Cementitious Composites

Hybrid effect of calcium carbonate whisker and carbon fiber on the mechanical properties and microstructure of oil well cement

Influence of nano-silica additions on hydration characteristics and cytotoxicity of calcium aluminate as biomaterial

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