Calcium nitrate, type G (tetrahydrate)

Commercial grade calcium nitrate is a polyfunctional (depending on the dosage) concrete additive with properties that allows products usage in the function of:

• an accelerating agent for a cement hardening;
  
• a long term increaser of concrete’s strength properties;
  
• an anodic inhibitor of reinforcing steel corrosion in cement;
  
• a modifying additive for concrete and cement mortar in the process of solid / reinforced concrete as well as blocky parts of precast-cast-in-place construction units construction, and in the process of building-in of pre-fabricated assemblies’ joints and also serves as antifrost additive if the average outdoor air temperature of a day is below 5° C (GOST 24211-91 "Admixtures for concretes. General technical requirements", Rules and regulations 82-101-98 Manufacturing and usage of solutions in construction industry)
  

Calcium nitrate advantages over other antifrost additives:

• is the inhibitor of reinforcing steel corrosion;
  
• decreases the risk of concrete distress distortion in the process of its contraction;
  
• is the concrete activator after long transportation; 
  
• allows working with concrete even in circumstances of sub-zero air temperature;
  
• is the stimulator of concrete setting and solidification when the dosage is 1,5-2% of the total concrete mass (more detailed information can be found in Rules and Regulations 82-101, attachment V, table V.2); 
  
• promotes early increase in strength properties without decrease of concrete permeability at the dosage of 2-2,5%;
  
• is the main additive which acts as a firming agent and that is used for water-resistant concrete manufacturing at the dosage of 1-1,5% of cement mass.