Forced action mixing of screeds on-site: Giving the control back to the floor screeding specialist

As screed failures become a common occurrence, there is now a general perception that ready mixed screeds could be the solution to achieve the perfect screed. Despite a few obvious benefits, ready mix screeds in fact take the control entirely out of the hands of the floor screeding specialists.

When ready mix screeds come at a premium price compared to site-mixed screeds, they do not guarantee the quality or the right proportion, with the mixing being done at offsite plants. The mix controller is at risk where different batches of varying mix proportions are handled daily. Moreover, they take away the flexibility of on-site decision changes and often result in considerable wastage and financial losses, in case of any logistical problems or decision changes.

Site mixing on the other hand can guarantee the best quality screeds at a very reasonable cost- provided the right work force is available to handle the job. Specialist screeding contractors with a skilled work force can produce supreme quality screeds right at the work site using forced action mixers.

Forced action mixing of CEM 1 class 42.5N and 0-4mm grade sand (complying with BS EN13139) in the ratio of 1:3-5 in screed pumps, along with the required additives based on the pre-agreed mix design can guarantee superior results, and improve the quality of site mixed screeds drastically.

Forced action mixing can help to overcome the drawbacks of ready-mix screeds such as logistical hurdles, high cost and large volume of wastage, while improving the quality of site-mixed screeds.

With forced action mixing, site-mix screeds can be conveniently mixed to the required quality, quantity, mix and moisture levels, as per requirement. Moreover, the decisions on the start time and starting and finishing points also remain at the convenience of the screeder.

With ready mix screeds the decision making is highly dependant on the timely delivery of the screed mix- which is often a major hurdle given the traffic and other logistic issues. Any unexpected change requests or variation in depth can be easily accommodated without concerns about wastage when the screed is mixed on site. Ready mixed screeds do not offer this flexibility, and any small additional load requirement comes at a premium price.

With the right work force and sufficient screed protection measures, there is no better choice than site-mixed screeds for the perfect screed.

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