Admixtures are added to concrete batch immediately before or during mixing concrete. Concrete admixtures can improve concrete quality, manageability, acceleration, or retardation of setting time, among other properties that could be altered to get specific results. Many, not to say all,concrete mixes today contain one or more concrete admixtures that will help your pouring process driving down cost while increasing productivity, The cost of these admixtures will vary depending on the quantity and type of admixture being used. All of this will be added to the cubic yard/meter cost of concrete
Air-entraining admixtures facilitate the development of a stable air-void system within concrete that increases the durability of the concrete. These admixtures impart air entrainment that results in:
- Increased resistance to deterioration from cyclic freezing and thawing
- Improved work-ability and cohesiveness of concrete placement
- Reduced segregation and bleeding
ACCELGUARD– is an accelerating, water-reducing admixture for concrete that does not contain calcium chloride or added chloride ions. It improves properties of plastic and hardened concrete, provides a significant improvement in early stiffening and setting characteristics, improved workability and decreased bleeding and segregation. This admixture is compatible with air entraining admixtures, HRWR admixtures (super plasticizers), and conventional water reducing admixtures.
Water Reducers - Mid/High Range
Mid-Range Water Reducers are used to reduce the water demand between 5% and 15%, achieve longer slump retention and give greater workability to concrete then normal ASTM C 494 Type A water reducers. High-Range Water Reducers are used to reduce water demand at 12 – 30%. Giving the best workability, having superior slump retention and aiding in the production of High Performance Concrete (HPC) and Self Consolidating Concrete (SCC).
Efflorescence Control Admixtures impair the movement of salts within the pores and capillaries of concrete products and minimize their impact on surface appearance
Set retarding admixtures are used to slow the setting time of concrete. By slowing initial set time, concrete mixtures are able to maintain fresh plastic properties for a longer period of time. This will reduce permeability, cracking, improve late age strength of heat treated concrete and extend the workability in hot weather.