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Application of Nano Magnesium Oxide as Expansive Agent in Cement-based Materials

March 17,2021.
The application of nano magnesium oxide as an expansion agent in cement-based materials is as follows: when nano-magnesium oxide is used as an expansion agent in cement-based materials, the mixing mass of nano-magnesium oxide is 1% to the mass of cementitious materials in cement-based materials. 10%; The advantage of using nano-magnesium oxide as an expansion agent is that the size of the magnesium oxide particles is between 1nm and 100nm, and the uniform and stable volume expansion is produced within the dosage range of 1% to 10%, without the problem of poor volume stability.

The application of nano magnesium oxide as an expansion agent in cement-based materials is characterized in that the cement-based materials are mixed with cementitious materials, aggregates, water and additives; the cementitious materials include Portland cements and minerals. Admixtures and expansion agents; Portland cements are Portland cement, ordinary Portland cement, slag Portland cement, pozzolanic Portland cement, fly ash Portland cement, composite Portland cement , Medium-heat Portland cement, low-heat Portland cement, low-heat Portland slag cement, low-heat fly ash Portland cement, low-heat micro-expansion cement, fly ash, low-heat and micro-expansion cement or dam Portland cement; When the nano-magnesium oxide is used as an expansion agent in the cement-based material, the mixing mass of the nano-magnesium oxide is 3%-8% of the mass of the cementing material in the cement-based material.

After the magnesium oxide particles are miniaturized to the nanometer level, it has the common properties of nanomaterials, that is, surface effect, macroscopic quantum tunneling effect, volume effect and quantum size effect. Therefore, nano-magnesium oxide has a series of novel thermal, optical, electrical, magnetic and chemical properties. It is a fine new high-function inorganic material, which not only has the uses of ordinary magnesium oxide, but also has new uses.


SAT NANO is one of the best supplier of MgO magnesium oxide powder in China, we can supply 30-50nm, 100nm, 1-3um particle, if you have any enquiry, please feel free to contact us at admin@satnano.com

Hot Tags : Nano Magnesium Oxide Magnesium Oxide Nanoparticles Magnesium Oxide MgO Nanopowder

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