SikaRapid®-4

SikaRapid®-4 meets and exceeds all requirements of Australian Standard 1478.1-2000 for Accelerator (Ac).

Stored at temperatures between 5°C and 35°C in unopened original containers protected from direct sunlight, shelf life is at least one (1) year.

Store at temperature between 5°C and 35°C, protected from direct sunlight.

1.44 g/cm³

1000ml contains approximately 86g Chloride ions.

SikaRapid®-4 is added to batching water or is poured into the concrete mix at the same time as the gauging water.  SikaRapid®-4 may also be added into the premix truck on site.  In this case, the concrete should then be mixed for an extra 1 minute for every cubic metre of concrete.  The concrete should then be checked visually for uniform consistency before discharging.

SikaRapid®-4 can be used in conjunction with any non-retarded Sika plasticiser or superplasticiser.  It is beneficial to add the SikaRapid®-4 with the initial mixing water before the addition of superplasticiser to enhance strength development.  Tests must be carried out to determine the optimum combination.

Do not use SikaRapid®-4 in conjunction with shrinkage compensating admixtures.

Dosage is 400ml - 2000ml/100 kg of total cementitious material.  Exact dosage rate should be determined by site trials.