Microstructure of Magnesium Oxychloride Cements

Matković, B.; Young, J. F.

doi:10.1038/physci246079a0

Cited by 59 publications

(41 citation statements)

References 4 publications

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“…Mg(OH) 2 , Mg 3 (OH) 5 Cl⋅4H 2 O, Mg 2 (OH) 3 Cl⋅4H 2 O etc have been identified (Metkovic and Young 1973;Soloeva et al 1974;Sorell and Armstrong 1976;Mathur et al 1984;Deng and Zhang 1999). In the present study, since same magnesium oxide was used, the observed variations in standard consistencies and setting times are related to the concentration of magnesium chloride solution.…”

Section: Resultsmentioning

confidence: 95%

Magnesium oxychloride cement concrete

2007

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The scope of magnesium oxychloride (MOC) cement in concrete works has been evaluated. MOC cement concrete compositions of varying strengths having good placing and finishing characteristics were prepared and investigated for their compressive and flexural strengths, E-values, abrasion resistance etc. The durability of MOC concrete compositions against extreme environmental conditions viz. heating-cooling, freezing-thawing, wetting-drying and penetration and deposition of salts etc were investigated. The results reveal that MOC concrete has high compressive strength associated with high flexural strength and the ratio of compressive to flexural strength varies between 6 and 8. The elastic moduli of the compositions studied are found to be 23-85 GPa and the abrasion losses between 0⋅11 and 0⋅20%. While alternate heating-cooling cycles have no adverse effect on MOC concrete, it can be made durable against freezing-thawing and the excessive exposure to water and salt attack by replacing 10% magnesium chloride solution by magnesium sulphate solution of the same concentration.

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Section: Resultsmentioning

confidence: 95%

Magnesium oxychloride cement concrete

2007

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“…[8] A needle morphology is observed at about 2 hours after mixing the MOC paste. [8] A needle morphology is observed at about 2 hours after mixing the MOC paste.…”

Section: Microstructure Developmentmentioning

confidence: 98%

“…A study by Matkovic and Young [8] suggests that the low porosity regions in MOC paste are analogous to contact zones in C 3 S pastes critical to strength development. The fracture process is consistent with that of crystalline material.…”

Section: Strength Developmentmentioning

confidence: 99%

Introduction to Non-Portland Cement Binders and Concrete

Ramachandran

Paroli

Beaudoin

et al. 2002

Handbook of Thermal Analysis of Construction Materials

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“…The microstructure of Sorel cement, containing MgO, was found to consist of regions of fine growths of needle crystals and regions denser and more homogeneous in appearance [413], SEM observations were related to cement formation. Shrinkage cracks had smooth sides with lack of needle-like crystals indicating that these were not pulled apart during the cracking process.…”

mentioning

confidence: 92%

Electron and Optical Microscopy

Ben‐Dor

1983

Advances in Cement Technology

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Microstructure of Magnesium Oxychloride Cements

Cited by 59 publications

References 4 publications

Magnesium oxychloride cement concrete

Magnesium oxychloride cement concrete

Introduction to Non-Portland Cement Binders and Concrete

Electron and Optical Microscopy

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