Admixtures Overview
Admixtures are materials other than cement, aggregate and water that are added to concrete either before or during its mixing to alter its properties, such as workability, curing temperature range, set time or colour.
Some admixtures have been in use for a very long time, such as calcium chloride to provide a cold-weather setting concrete. Others are more recent and represent an area of expanding possibilities for increased performance.
Not all admixtures are economical to employ on a particular project. Also, some characteristics of concrete, such as low absorption, can be achieved simply by consistently adhering to high quality concreting practices.
| PRODUCT | DESCRIPTION | TYPE | DOSAGE | DATA SHEET |
|---|---|---|---|---|
| Adfil Construction Fibres | ADFIL has a wide range of specialised fibres for use in most construction applications. Special surfactant coatings enable excellent dispersion of individual filaments, allowing the formation of a homogenous three-dimensional matrix within | ConcreteMortar | See individual data sheets 1 bag per m³ | |
| Cebex 112 | Improves the workability and trowelling properties of sand/cement mixes. CEBEX 112 improves bond strengths and assists in reducing or eliminating shrinkage cracking caused by evaporation. | Mortar | 0.30 - 0.60/100 kgs of cement | Cebex 112 Technical Data Cebex 112 MSDS |
| Conplast Blocksave SD110 | In the production of concrete blocks, CONPLAST BLOCKSAVE will increase strength, improve rheological flow without increased slump, produce a denser block with better finished sides and corners and reduce the unit cost of the block. | Block | 0.4 litres/100 kgs of cement | Conplast Blocksave Technical Data |
| Conplast Blockspeed SD400 | When used in concrete block manufacture, BLOCKSPEED allows quicker turnaround, increased strength at an earlier age and increases ultimate strengths without | Block | 1.2 litres per 100 kgs of cement | Conplast Blockspeed Technical Data |
| Conplast P211 | To produce increased workability without loss of strength, increased strength without loss of workability, or cement reduction without loss of workability or strength. | Concrete | 0.28 - 0.42 litres/100 kgs of cementitious material | Conplast P211 Technical Data |
| Conplast PA21 | CONPLAST PA21 produces air-entrained concrete without the usual loss of strength or additional cement content usually required. | Concrete | 0.25 kg -0.60 litres/ 100 kgs of cement | Conplast PA21 Technical Data |
| Conplast RP264 | CONPLAST RP264 produces increased workability concrete, with increased cohesion and set-retardation. Produces increased workability without loss of strength, increased strength without loss of workability, or cement reduction without loss of workability or strength. | Concrete | 0.25 - 0.60 litres/ 100 kgs of cementitious material | Conplast RP264 Technical Data |
| Conplast SP423 | To produce highly workable and flowing concrete, with a very high degree of workability retention. Ideal for Readymix operations where slump retention is required. | Concrete | 0.35 - 0.42 litres/100 kgs of cementitious material | Conplast SP423 Technical Data |
| Conplast SP430 | Produces a highly fluid, self-leveling concrete with very high early & ultimate strength, reduced permeability and reduced segregation. | Concrete | For following or high workability concrete: 0.70 - 1.30 litres/100 kgs of cementitious material. For strength and high early strength: 0.70 - 2.0 litres/100 kgs of cementitious material. | Conplast SP430 Technical Data |
| Conplast UW | An admixture to be used in conjunction with CONPLAST 430 to produce a concrete that is flowing, highly workable and cohesive, and is resistant to "wash-out" of the fines and cement when placed underwater, in moving or tidal water. | Concrete | 0.8 kg - 1.0 kg/100 kgs of cement | Conplast UW Technical Data |
| Conplast X421 | A concrete admixture to produce concrete of increased density and reduced porosity. | Concrete | 6.0 litres per cubic meter of concrete | Conplast X421 Technical Data |
| DYNAcrete PC 5-21 | High range water reducing, super-plasticizing admixture. | Concrete | DYNAcrete PC 5-21 Data Sheet | |
| Quikset | An accelerating admixture based on calcium chloride, QUIKSET enhances the early stages of cement hydration producing more rapid stiffening and hardening. | Concrete Mortar | Available in210 litre drums, 18 or 20 litre kegs & 4 litre bottles. Dosage: 1.6 - 3 litres per 100 kgs. | |
| Conplast R | Conplast R disperses the fine particles in the concrete mix, enabling the water content of the concrete to perform more effectively. The initial hydration of the cement is also delayed, resulting in a delay in the setting time of the concrete with no adverse effect on subsequent stiffening and strength gain. | Concrete | 10-30 litres per cubic meter of concrete. See data sheet for further information | Conplast R Technical Data |
| Con- Ad CI | CONAD CI, is a concrete admixture based on Calcium Nitrite, which is proven to inhibit the corrosion of steel in reinforced concrete. CONAD CI contains a minimum of 30% calcium nitrite by mass and also ASTM C494 type C | ConcreteMortar | Con- Ad CI Technical Data | |
| Con- Ad PC 405 | Con- Ad PC 405 is a polycarboxylic based, ready to use high range water reducing admixture for concrete, engineered to provide maximum water reduction, slump flow and high strengths in Readymix and Precast concrete applications. | Concrete | ||
| Cebex 112 | Improves the workability and trowelling properties of sand/cement mixes. CEBEX 112 improves bond strengths and assists in reducing or eliminating shinkage cracking caused by evaporation. | Mortar | 0.30 - 0.60/100 kgs of cement | Technical Data Cebex 112 MSDS |