EUNICEM SP4 is an extremely versatile product designed to cover a range of application requirements in concrete, under both normal and high ambient temperatures. It can be used at various dosage levels to water reduce, plasticize and also superplasticizer concrete mixes. Low dosages are used for water reduction, workability improvement with excellent retention and limited retardation. At high dosage levels EUNICEM SP4 will give large water reductions or alternatively it can be used to superplasticizer a concrete mix. EUNICEM SP4 also exhibits excellent workability retention and limited retardation at high levels of addition, particularly in hot climates. EUNICEM SP4 is based on a modified lignosulphanate and a powerful deflocculant. Depending on the addition rate EUNICEM SP4 conforms to Type A, D and G materials with BS 5075 Part I and BS 5075 Part III.
EUNICEM SP4 is supplied ready for use. It should be added to concrete mixes during the mixing process, preferably at the same time as the mix water. It should not be added directly to the cement. No extension of normal mixing time is necessary, except when superplastised concrete is being produced. Then EUNICEM SP4 should be added at least 2 minutes before the pour which is recommended to enable eicient dispersion.
• EUNICEM SP4, because of its effective plasticizing action, gives increase workability to most concretes.
• Imparts excellent workability retention on concrete, when used at both low and high levels of addition, which is of particular value at high ambient temperatures.
• As a water reducing agent, EUNICEM SP4 gives effective water reduction when employed at either low or high dosages, resulting in increases in strength, impermeability and durability.
• EUNICEM SP4 produces superplasticizer concrete by direct addition at high dosage levels. The increase in workability is such that the concrete becomes self-compacting and no vibration is required to achieve dense, void-free concrete.
