MasterGlenium SKY 698

MasterGlenium SKY 698 is an innovative last generation superplasticizer of polycarboxylic ether (PCE) polymers.

MasterGlenium SKY 698 is specially engineered for readymix Rheoplastic concrete having fluid consistence and selfcompacting concrete, having a very high workability retention, especially under hot weather conditions.

The fresh concrete shows no segregation and at the same time has a low water cement ratio and, consequently, high early and long term strengths as per EN 206-1 and UNI 11104 standards.

MasterGlenium SKY 698 may be used also to produce Rheodynamic concrete, capable of self compaction, even in the presence of dense reinforcement, without the aid of vibration MasterGlenium SKY 695 is chloride free and meets UNI EN 934-2 Tables 11.1 & 11.2. dispersion.

The hydration, and particularly the ettringite formation, works against the superplasticiser. The molecules already adsorbed are covered by the ettringite lawn and thus are ineffective.

The particular configuration of the MasterGlenium SKY molecules allows its delayed adsorption onto the cement particles and disperses them efficiently over a long period of time. The molecular structure is essential for the early development of strength. With superplasticizers based on conventional polycarboxylate ether, the molecules cover the entire surface of the cement grain and build a barrier against contact with water.

Therefore, the hydration process takes place slowly. The MasterGlenium SKY molecules on the other hand leave sufficient surface of the cement exposed to allow contact with water for a rapid hydration reaction which results in high early strength development.

Total Performance Control and the use of MasterGlenium SKY 698 offers the following benefit to the ready-mix concrete producer:

• Reduction the water content with respect to the state of the art polycarboxylate based superplasticisers.
• Production of Rheoplastic and Rheodynamic concrete having a very low W/C ratio.
• Workability retention for a longer period especially in hot weather conditions avoiding the problem of re-tempering with water before the pouring operation.
  Improvement of the rheology even in concrete mixes having a low fines content.
• Optimization of the production of durable concrete as per the EN 206-1 and UNI 11104 standards.
• As compared to the traditional superplasticisers, the engineering properties such as early and ultimate compressive and flexural strengths, bond to steel, and modulus of elasticity, shrinkage, creep, and impermeability are improved.

The normal recommended dosage rate is 0,5 to 1,8 litre per 100 kg of binder.
Other dosages may be recommended in special cases according to specific job site conditions.
In such cases please consult BASF Technical Service Department for advice.

MasterGlenium SKY 698 is available in 208 litre drums and 1000 litre IBC tank.
MasterGlenium SKY 698 must be stored in a place where the temperature does not drop below 5 °C. In case of freezing, warm up and homogenise the admixture solution before using