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Spain
DRAGON IV-SR
CEM IV/A(P) 42,5 R-SR
Our DRAGON IV-SR is a medium-high strength pozzolanic cement designed primarily for use in sulfate-aggressive environments, both in soils and in water and marine environments.
TECHNICAL ADVICE
+34 936 806 030
sat.cmt@molins.es
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DESCRIPTION
Our DRAGON IV-SR is a medium-high strength cement, designed specially foruse in sulphate-aggressive conditions, both in ground and in water, and marine environments.
Its main features are:
• Low clinker content.
• High initial strengths.
• High fineness.
TECHNICAL CHARACTERISTICS
| Typical values | Specifications according to standard | |
| Clinker (%) | 70 | min. 65 max. 79 |
| Pozzolana (%) | 26 | min. 21 max. 35 |
| Minor additional component (%) | 4 | min. 0 max. 5 |
| CHEMICAL | ||
| Sulphate, SO3 (%) | 2,7 | max. 3,5 |
| Chloride, Cl- (%) | 0,06 | max. 0,10 |
| Tricalcium aluminate, C3A (%) | 7 | max. 9 (en el clínker) |
| PHYSICAL | ||
| Blaine specific surface (cm²/g) | 5500 | |
| Soundness Le Chatelier (mm) | 0,5 | max. 10 |
| Initial setting time (min) | 185 | min. 60 |
| Final setting time (min) | 235 | max 720 |
| MECHANICAL | ||
| 2 days compressive strength (MPa) | 27 | min. 20,0 |
| 28 days compressive strength (MPa) | 52 | min. 42,5 – max. 62,5 |
| Pozzolanicity | fulfit at 8 days |
ENVIRONMENTAL NOTE
Since 2009, at our factory in Sant Vicenç dels Horts (Barcelona), the implementation of new technologies in the production line, the use of alternative fuels, and improvements in the use of additions and grinding additives in our cements have allowed us to achieve a significant reduction in CO₂ emissions.
In this Portland cement, CO₂ emissions have been reduced by more than 25% per ton, calculated for Scope I and compared to our reference cement CEM I 52,5 R from 2020.
This cement is manufactured with clinker aligned with European taxonomy.
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