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CX FASTSET M+
CX FASTSET M+ is supplied as a light yellow to white liquid. When added to cementitious mixes it accelerates hydration and enables the water content to perform more efficiently by dispersing agglomerated cement particles. Where there is embedded or prestressed steel or where sulphate resistant cement is used or when steam curing is employed, CX FASTSET M+ should be replaced by CX FASTSET AN chloride free accelerating concrete admixture.
Uses: As an accelerator for use in concrete and cement mortar to give rapid strength development for early stripping of formwork and to help resist the effects of frost. Ideal for winter working.
Advantages
Placing of concrete
Allows continued placing of concrete at low temperatures.
Reduces the water
Reduces the water content of concrete or mortar without loss of workability
Reduces segregation
Reduces segregation and increases density and compressive strength
Accelerates
Accelerates the hardening of floors and screeds.
Enables earlier
Enables earlier release from precast moulds thus speeding production
Additional frost protection
Gives additional frost protection by reducing the low water content and accelerating hydration of cement
Mechanical Properties
Table: 1
| MIX | W/C RATIO | SETTING TIME @ 200C | |
| INTIAL SET | FINAL SET | ||
| CONTROL | 0.59 | 4 HR 45 MINS | 6 HR 30 MINS |
| CX FASTSET M+ | 0.55 | 1 HR. 30 MINS | 3 HRS. |
Table: 2
| Temp. | Admixture | Dosage/liter 100 kg OPC |
W/C Ratio | Compressive | strength | N/mm2 | |
| 200C | NONE | — | 0.59 | 10.00 | – | 34.7 | 42.0 |
| FASTSET M+ |
3.4 | 0.55 | 22.2 | – | 49.7 | 57.6 | |
| 190C | NONE | — | 0.65 | 5.6 | 15.2 | 28.1 | 38.6 |
| FASTSET M+ |
1.7 | 0.60 | 7.9 | 19.2 | 32.9 | 41.6 | |
| 50C | NONE | — | 0.65 | — | 5.4 | 16.7 | 30.9 |
| FASTSET M+ |
1.7 | 0.60 | — | 8.0 | 21.0 | 35.9 | |
| 20C | NONE | — | 0.65 | — | 3.6 | 12.8 | 26.1 |
| FASTSET M+ |
2.6 | 0.60 | — | 7.2 | 19.3 | 32.0 |
Application
