Low-heat Portland Cement, is one of hydraulic binding materials,
also named Low Heat Cement, High Performance Low Heat Cement, or
High Belite Cement. Code Number PLH.
Low Heat Cement has excellent performances such as high final
strength, sulfate corrosion resistancing, good lasting properties,
good resistance to rupture, etc.
Because of its excellent performances for example lower hydration
heat, high late strength, sulfate resistancing, anti-seepage and
resistance to rupture etc., Low Heat Cement is widely applied in
building dam, bank of river, wall of sea, and other hydraulic
engineering concrete and marine concrete.
Low heat of hydration: comparing with grade 42.5 portland cement,
its value of hydration heat is low about 20%, ultimate value of
temperature up is low about not less than 15%, so PLH. is very fit
to apply in making mass concrete;
Lower water requirement
High lasting properties
Good volume stabilization
High growth rate of final strength
More high technical strength of concrete
Excellent impact erosion
Excellent wear resistance
Lower temperature upward value of heat insulation
Super-high performance of chemical corrosion resistance: when
Low-heat Portland Cement is cured in 3% solution of Na2SO4 for 6 months, its erosion resistance factor is more than 0.97,
higher near 1 multiple than Ordinary Portland Cement(OPC), so it
has good corrosion resistance performance especial to sulfate. To
other erosion medium for example sea water and chloride, its
corrosion resistance performance is obviously superior to OPC.
Excellent resistance to drying shrinkage
Good resistance to rupture