Basic properties
ReturnSetting and quick hardening
Very short and adjustable initial setting time:
| Temperature of mortar of PNC | 10°C | 20°C | 30°C |
| Initial setting time of mortar of PNC | 4 minutes | 2 minutes | 1 minute |
High initial strength/almost instantaneous hardening:
The strength of 4 MPa, which in most cases allows form work to be removed and/or the structure to be returned to service, is obtained after 15 minutes at 20°C; Prompt natural cement is a veritable “force of nature”.
| Dosage (in volumes) | Mortar without Tempo* | Mortar with Tempo* |
| 1/1 | 4 MPa at 30 minutes | 4 MPa at 90 minutes |
| 2/1 | 4 MPa at 15 minutes | 4 MPa at 60 minutes |
* Setting retardant
Secure structures which can very quickly be returned to use:
This quick setting and exceptional hardening allows structures to be secured very quickly (between 15 and 90 minutes, according to the mortar dosage and initial setting time chosen) when it comes to bad weather, cold, return to normal use.
After very rapid initial gains in strength, strength increases slowly over time, over a very long period.
This slow, continuous increase in strength and compactness ensures the exceptional durability of Prompt natural cement mortars and concrete.