CEMENTOL ® B NOVI Hardening accelerating admixture, SIST EN 934-2: T7 with antifreeze affect Concreting at low temperatures. FIELD OF APPLICATION Cementol B NOVI is a chemical admixture for concrete, used for concreting at low temperatures. Its action combines the effects of a hardening accelerating admixture and antifreeze, so as to accelerate the attaining of the necessary strength of 5 MPa before concrete is exposed to freezing. ACCORDANCE WITH THE SIST EN 934-2 STANDARD Property Declared values with acceptable deviation Appearance Light brown liquid Relative density, 20°C (1,13 ± 0,03) kg/dm 3 Conventional dry material content (20,5 ± 1,0) % pH 7,5 ± 1,5 Water soluble chloride content (Cl - ) Chloride free Alkali content (Na 2 O equivalent) < 8 % ACTION Cementol B NOVI lowers the freezing point of water and simultaneously accelerates the hydration reaction of cement minerals. It improves the workability of fresh concrete or enables a reduction of mixing water for ca. 5% for equal workability. It can be used for concreting at lower temperatures if precautions for winter concreting are taken into account. DOSAGE AND INSTRUCTIONS FOR USE • Dosage: 1 - 2% of the cement weight (1 to 2 kg per 100 kg of cement), depending on the desired effects and working conditions. • Cementol B NOVI must be diluted with mixing water and then added to dry concrete mixture in order to spread equally throughout the mixture. Warning • Winter concreting demands special care and all precautions for winter concreting should be taken into account! • The minimum temperature of the concrete mixture has to be + 5°C. Freshly concreted surfaces in the open air have to be protected with appropriate isolating materials. • The effect of the admixture can be heightened by using cement with higher hydration heat, by increasing the cement content and lowering the water-cement ratio. • A lower water-cement ratio is achieved by adding plasticizers Cementol Delta Ekstra/ Delta Ekstra W, superplasticizers Cementol Zeta-conc./ P-conc./ T-conc., hiperplasticizers Cementol Hiperplast 170/ 179/ 463/ 481/ 974 or Cementol Zeta Super S/ PLUS to the concrete mixture • The stated effects of Cementol B NOVI can only be achieved by following the instructions given above.
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CEMENTOL® B NOVIHardening accelerating admixture, SIST EN 934-2: T7 with antifreeze affect
Concreting at low temperatures.
FIELD OF APPLICATION
Cementol B NOVI is a chemical admixture for concrete, used for concreting at lowtemperatures. Its action combines the effects of a hardening accelerating admixture andantifreeze, so as to accelerate the attaining of the necessary strength of 5 MPa beforeconcrete is exposed to freezing.
ACCORDANCE WITH THE SIST EN 934-2 STANDARD
Property Declared values with acceptable deviationAppearance Light brown liquidRelative density, 20°C (1,13 ± 0,03) kg/dm3
Conventional dry material content (20,5 ± 1,0) %pH 7,5 ± 1,5Water soluble chloride content (Cl-) Chloride freeAlkali content (Na2O equivalent) < 8 %
ACTION
Cementol B NOVI lowers the freezing point of water and simultaneously accelerates thehydration reaction of cement minerals. It improves the workability of fresh concrete orenables a reduction of mixing water for ca. 5% for equal workability. It can be used forconcreting at lower temperatures if precautions for winter concreting are taken intoaccount.
DOSAGE AND INSTRUCTIONS FOR USE
• Dosage: 1 - 2% of the cement weight (1 to 2 kg per 100 kg of cement), depending on thedesired effects and working conditions.
• Cementol B NOVI must be diluted with mixing water and then added to dry concretemixture in order to spread equally throughout the mixture.
Warning• Winter concreting demands special care and all precautions for winter concreting shouldbe taken into account!
• The minimum temperature of the concrete mixture has to be + 5°C. Freshly concretedsurfaces in the open air have to be protected with appropriate isolating materials.
• The effect of the admixture can be heightened by using cement with higher hydration heat,by increasing the cement content and lowering the water-cement ratio.
• A lower water-cement ratio is achieved by adding plasticizers Cementol Delta Ekstra/Delta Ekstra W, superplasticizers Cementol Zeta-conc./ P-conc./ T-conc., hiperplasticizersCementol Hiperplast 170/ 179/ 463/ 481/ 974 or Cementol Zeta Super S/ PLUS to theconcrete mixture
• The stated effects of Cementol B NOVI can only be achieved by following the instructionsgiven above.
PACKING
• 50 kg plastic cans, 1 m3 containers
STORAGE
• Storage has to prevent any damage.• In tightly closed and undamaged packaging, the shelf life of theproduct is min. 2 years from the production date.
• The product may still be used after the date of expiry, but thecharacteristics important for the intended use have to beexamined.
SAFETY PRECAUTIONS
General instructions for working with chemicals should beobserved when working with Cementol B NOVI:
• Eating, drinking or smoking during work is prohibited.• After finishing work, hands should be thoroughly washed withwater.
NOTE
Instructions are given on the basis of examinations and technicalexperience of the firm. Due to specific conditions and workmethods, preliminary tests are advised for every type of use.Since we cannot influence the course of work, we cannot be heldresponsible for its quality.
Cementol B NOVI – hardening accelerating admixture meets theSIST EN 934-2 standard requirements.
CEMENTOL® B NOVIHardening accelerating admixture, SIST EN 934-2: T7 with antifreeze affect
Technical D
ata Ed
ition: 04/12.
Cementol B NOVI - Hardening accelerating admixture Conformity with SIST EN 934-2:T7Effect on Compressive Strength (at equal w/c ratio)
Compressive strength I (%)
g reference; w/c = 0,51, slump = 68 mmg 2% Cementol B NOVI; w/c = 0,51, slump = 80 mm
20°C24 h
- Cement: CEM I 42,5R- Cement close: 350 kg/m3
- Aggregate: 0-31 mm
20°C28 days
5°C48 h
200
100
0
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