Admixtures are the ingredients in concrete other than cement, water and aggregate. Admixtures can alter the properties of curing concrete, such as workability, curing temperature range and set time or colour. In addition, admixtures can reduce the cost of construction and modify the properties of the curing concrete.
The main types of admixtures we manufacture and supply are accelerators, water reducers and plasticisers, each adding their own attributes to curing concrete.
Accelerators shorten the curing time of concrete, enabling poring in cold weather. Care must be exercised when using accelerators as they can cause an increase in the drying shrinkage of concrete. Calcium chloride is a common accelerator, used to accelerate the time of set and the rate of strength gain.
Plasticisers can reduce large volumes of water content in the curing concrete to allow for greater flowability and help to produce a higher strength concrete. Flowing concrete is a highly fluid but workable concrete that can be placed with little or no vibration or compaction. The effect of plasticisers lasts only 30 to 60 minutes, depending on the dosage rate. This is followed by a rapid loss in workability, so plasticisers should be added to concrete at the worksite.
Plasticiser for mortar, plastering, bricklaying.
Integral waterproofing for concrete, mortar & plaster.
Plasticiser/Water Reducer for ready-mixed and site-mixed concrete.