Sika Pump is a universal concrete admixture used to improve concrete mixes, to protect concrete pumps and pipes from excessive wear, decrease pump pressure and reduce pumping time.

Sika Pump is recommended for concrete mixes with varying fines content, low cement content or unsatisfactory aggregate grading. These conditions tend to cause bleeding of the fresh concrete, leading to segregation during pumping which tends to lead to extremely high pump pressures.

The use of Sika Pump also allows for secondary raw materials such as aggregates derived from excavation or demolition work to be utilized. Concrete made with this type of aggregate can be pumped without excessive pump pressure

- Increase cohesion and workability

- Improve the ease of placing of fresh concrete.

- Noticeably improve the ability of pumping of difficult concrete mixes

- Avoid interrupted by stoppages of pumping concrete due to blockages in the pipes etc.

- Extend the working life of concrete pumps and pipes

Dosage: 0.20-1.00 ltr. per 100 kg of cement

Dosing :Recommended dosage by weight of cement:

0.2 - 0.4 ltr per 100 kg of cement to increase the cohesion of difficult concrete mixes and/or to reduce bleeding of concrete

0.5 - 1.0 ltr per 100 kg of cement to reduce concrete pump pressure and to compensate for the missing fines content in the concrete mix.

Addition: Sika Pump should be added at the concrete batching plant. Addition must be added after the gauging water is added to the cement gravel mix (do not add to the dry mix). The optimal effect of Sika Pump will be achieved with a wet mixing time of 90 seconds. Sika Pump slightly influences the viscosity of the concrete mix. The power of the mixing motor must be slightly increased in comparison to the basis concrete mix of identical W/C ratio.

Concrete placing: Sika Pump is normally used with a retarder or superplastiziser, the properties of which will not be adversely affected. The use of Sika Pump in combination with Plastiment or Sikament superplastiziser will ensure that high quality concrete will be produced. Nevertheless, standard practices for good concrete productions as well as concrete placing must be strictly adhered to when using Sika Pump. The fresh concrete must be properly cured.

HEALTH AND SAFETY

Avoid contact with foodstuffs and utensils. Avoid prolonged skin contact. In the event of contamination wash thoroughly with water. If the eyes or mouth are affected wash with clean water and obtain medical attention immediately