Phosphate high alumina cement belongs to chemical binding refractory cement which mainly includes aluminum phosphate cement, magnesium phosphate cement, ammonium phosphate cement. Phosphate high alumina cement raw material comprises about 50-70 weight percent of powdered high alumina cement and about 30-50 weight percent of ammonium phosphate in an aqueous solution. Aluminum phosphate cement is usually used to produce high temperature refractory materials, especially phosphate refractory concrete. Aluminum phosphate refractory cement has good thermal shock resistance, abrasion resistance, cold crushing strength, slag corrosion resistance and thermal shock resistance.
Phosphate High Alumina Cement Characteristics
Higher refractoriness than ordinary cement.
Rapid setting, high early stage strength.
Excellent high temperature stability and thermal shock resistance.
Abrasion resistance, high compression strength.
Strong slag corrosion resistance.
Phosphate High Alumina Cement Parameters
Item
Index
Color
White
P2O5(%)
60-70
Al2O3(%)
30-40
pH value
3-5
Residue through sieve(45μm) %
0.5
Phosphate High Alumina Cement Applications
Phosphate cement as a newly invented gel material, differs traditional silicate cement in terms of production craft, hydration mechanism and hydration products. Normal phosphate high alumina refractory concrete can endure max. temperature up to 1600-1700℃. When heated to a certain temperature, some phosphate occurs decomposition and polymerization reactions and thus have very strong adhesion ability and gained strength. Aluminum phosphate cement can be used to produce various kinds of refractory and thermal shock resistant materials, corrosion and electricity insulation coating material and high efficiency cemetitious material, etc. Phosphate cement also has huge application potential in construction, high temperature refractory industry. Another main application of phosphate high alumina cement is making refractory concrete.
RS Kiln Refractory is a professional high temperature refractory material supplier and high temperature projects solutions supporter. Since established in 20 years ago, we have offered more than 300 kinds of refractory products and professional technical supports for more than 1000 enterprises covering metallurgy, steel, nonferrous metal, power plant, glass, cement and other industries. RS Kiln Refractory regards quality as life and is always ready to offer professional service for our customers.
