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Helping Mansfield Brick to ‘Make it better’

Founded in 1926 to produce calcium silicate bricks to the building trade, Mansfield Brick now produces a wide range of concrete products.

From its state-of-the-art production facility in Nottinghamshire, it produces more than three million units a month, including concrete commons, coursing bricks and infill slips for the block and beam flooring market.

Mansfield Brick supplies many of the major builders’ merchants, buying groups and independent suppliers, along with producing bespoke products to meet the needs of the industry.

The firm’s Production Director, Dominic Delich, approached ConSpare at the Precast Show in May 2017. Dominic had recently been recruited by the firm, with the remit of improving its operations, to increase its production capacity to 30m bricks-a-year.

He had just recruited a dedicated team of maintenance engineers to review the plant, equipment and set up and draw up a plan to bring about the improvements required to enable Dominic and his team to meet the ambitious target.

ConSpare was invited to walk the plant and see what improvements we could suggest.


The Challenge

Variable concrete quality produced by the batch plant was a clear issue at Mansfield Brick which, in turn, was having a huge impact on overall production efficiency.

A culmination of problems with the way the plant was set up were having a big impact on overall efficiency, leading to a wide variation in the quality of the units coming off the production line.

Varying moisture levels in raw materials were affecting the company’s ability to consistently achieve the optimal mix design, often resulting in wet batches of concrete being delivered into the plant.

This would lead not only to inconsistent product quality from one batch to the next, but also result in small variances in the overall size and shape of each individual brick, leading to bottlenecking and failure at key points in the automated process, which increased the amount of maintenance downtime in any given shift.

The batch plant used by Mansfield Brick was of a good quality, but a lack of preventative maintenance meant that many of the key pieces of equipment were under-performing and needed to be brought back up to spec – much of which centred around the mixing system.


The solution

To improve concrete batch accuracy, we assessed the whole plant and identified that for Mansfield Brick, controlling moisture in the batch was critical to its operations.

We recommended installing Hydronix moisture measurement system in the mixer to accurately control the addition of water to the mix, which would make significant strides to solving the problem.

But we also recognised that this upgrade, in isolation, wouldn’t derive maximum benefit.

ConSpare’s ‘Make it better’ approach enabled us to develop a solution for Mansfield Brick which delivered the maximum possible benefit.

Walking the plant, understanding the problems and developing a holistic plan to solve multiple issues in the most logical sequence made a real difference.

As part of the works, we specified:

  • Refurbishing the mixer with new wear parts – improving mixing
  • Servicing the existing mixer washout system – keeping the pan clean
  • Refurbishing the mixer venting filter – controlling dust on the mixer platform
  • Installing two belt scrapers and Matrox chute liners
  • Supplying and commissioning a Hydronix HydroControl automatic moisture control system to control the mixer sensor

The above solutions were deployed in a specific order, to derive the most benefit for the client.

Had we simply installed the Hydronix system into a mixer which was not being cleaned properly and had worn mixing tools, for example, it would have prevented the sensor from operating to its full potential.

‘Make it better’ enabled us to assess Mansfield Brick’s whole concrete production process and utilise specialist products to provide solutions to improve specific parts of the plant.

The very core of ‘Make it better’ is about collaborating with our customers to transform the concrete production process.

While solving problems individually provides plant improvement, delivering that improvement across the plant provided transformation.


The result

Our ‘Make it better’ approach and the solutions that we supplied allowed Dominic and his team to get back on top of the maintenance of not only the concrete batch plant, but the rest of the production line.

The problems they were suffering with wet batches often wouldn’t come to light until the bricks were reaching the end of the process, which could be 24 hours after they left the block machine to be cured.

Moisture levels were often being judged by trial and error by plant operators and it would often take up to an hour each morning to adjust the moisture levels enough to get consistent batches running through the plant.

The Hydronix system has eliminated this and means consistent batches of concrete are produced by the mixer within minutes of production starting each day, leading to more consistent product quality and fewer breakdowns caused by ‘fat bricks’.

This extra production time directly resulted in the manufacture of an additional 1.67million bricks per annum, and the increased accuracy reduced scrappage by 75,000 bricks per annum.

Successes in improving the batch plant have unlocked further improvement throughout the plant, as the plant is more efficient it can keep up with the higher demand. Plant runtime is up from 64.9% in 2015 to 74.1% in 2018, while waste has fallen from 0.84% to just 0.18% in the same period.

It has enabled Mansfield Brick to increase production from 26m bricks in 2015 to 31m last year, with the company on-track to deliver a similar number of units this year.

And reducing the amount of downtime has enabled the firm to increase production time by two hours each day and take a more proactive approach to maintaining the plant, introducing 18 additional dedicated maintenance days into the budget in 2018.

The improvements to the plant have led to an increase in confidence, in both production and sales.

The firm has significantly expanded its stockholding from 1million units to 6.5million units, allowing the company to satisfy immediate customer demand whilst benefitting from longer production runs.

The bricks also sit on the yard longer, providing more control over when the bricks reach full strength. An increase in both sales and order enquiries has followed, while the production team now has full confidence that the concrete being produced by the plant isn’t leading to stoppages and maintenance issues further along the production process.

The cumulative effect of all the upgrades we specified have had a far bigger impact than they would have if they had been implemented on their own. Although the initial investment was more, Mansfield Brick got a huge increase in return.

As a result, with the bricks achieving such consistent strengths, Mansfield Brick are now able to move forward and improve other elements of the process. The team are now looking to refine the mix design and implement reductions in cement usage per batch.



Dominic Delich, Production Director at Mansfield Brick, said: “We’ve been blown away by the solutions ConSpare has provided, which have had a huge impact on production efficiency here at Mansfield Brick.

“I was always confident that if we got the plant operations right, I’d be able to deliver 30m bricks-a-year and the improvements ConSpare have made have been a huge part of achieving that target.

“Not only have they enabled us to get back on top of the maintenance of the plant and take a much more proactive and preventative approach, but the whole team now has confidence in the plant and the consistency of the concrete it produces.

“It has all but eliminated the problems we were suffering with wet batches and fat bricks before ConSpare’s solutions were installed.

“Breakdowns were a regular occurrence before and we were often having to stop production to clear up pallets of spilled bricks from the floor.

“However, the team now all have confidence in the plant and take pride in keeping it running smoothly, which, in turn, helps us to not only achieve our numbers, but also to ensure that they are all of the consistent quality that Mansfield Brick has built its reputation on.”



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