The previous production process deployed by KwaMhlanga Group, a large, diverse, civil engineering contracting group, which operates in the construction, slip form concrete, continuous mixing and paving, plant hire and property development sectors, had resulted in inaccurate blending of emulsions and cement into aggregates and lower than desired outputs.
After several years of comprehensive research, KwaMhlanga decided to invest in the Rapidmix 400CW mobile continuous concrete mixing plant.
Francois Bakkes, KwaMhlanga’s operations director, said: “The Rapidmix is a hi-tech plant that is manufactured to last and offers maximum production. After a week of onsite training and commissioning of the plant, full production was attained.” Bakkes said the Rapidmix 400CW had also provided “high accuracy stabilisation”.
Rapidmix offers full weighing of all materials - aggregates, cement and water - addressing the KwaMhlanga Group’s difficulties with blending accuracy. The machine’s cement silo offers weighing capabilities via dual rotary valves and load cell suspended screw conveyors. Rapidmix also features a weigh belt, weighing material from the aggregates hopper to the mixing chamber. The integral control system enables automated, precise and detailed record-keeping and storing of multiple recipes for the proportioning of different materials. Due to its advanced design and powerful performance, the pugmill mixer is said to ensure excellent encapsulation of aggregates and can be used in a variety of applications including cement bound materials and bitumen emulsions.
