Danley Systems | Products and systems for wet concrete construction

With steel is short supply, Danley’s SRD solution minimises delays and keeps construction projects moving

There has been a lot of concern about materials shortages in the construction industry over the past 18 months – not least when it comes to the supply of steel. Neil Langan, Business Unit Manager from ITW Construction Products looks at the impact of the shortage for businesses that are looking to invest in new concrete service yards and hardstandings, many of which use steel as a core component.

The steel shortage

As with many manufacturing industries, the global pandemic lead to a slowdown in production, followed by a bottleneck as lockdown eased and demand soared. The issue was compounded further by container shortages, port delays and price increases. The British Electrotechnical and Allied Manufacturers Association said in May that a dramatic reduction in steel production in early 2020 had caused a worldwide shortage, while British Steel recently temporarily stopped taking orders on structural steel sections due to “extreme demand”.
For industries that rely on steel, the shortage is taking its toll. As well as access to materials being limited, delays and price hikes are slowing down project delivery, impacting both margins and profits.

Hardstanding design for industrial concrete pavings

With the shortage set to continue, businesses looking to invest and improve their concrete hardstandings and service yards may find their plans hampered. The most common method of constructing concrete hardstandings in the UK utilises nominal amounts of steel in the form of mesh reinforcement and dowel bars. However, a recent article in Construction News reported that: “Rebar for concrete [prices] rose by 13 percent between March and April. Over the past twelve months, prices have soared 37.3 percent.”
Danley’s Strategic Reinforcement™ solution uses significantly less steel than traditional mesh reinforcement, making this an ideal time to explore the benefits of a solution that also offers improved sustainability, faster project delivery and lower material usage. For Next Plc, using Danley’s solution for the construction of a new external service yard resulted in an 80% reduction in steel by weight.

Reduced steel, improved performance

While Danley’s design still uses steel, it optimises material usage by removing all mesh reinforcement and placing the steel at the joints, where it provides the most benefit. This design offers improved service life vs mesh reinforcement, reducing the cracking, faulting, performance issues and downtime often seen in other designs.
With a load transfer capacity of 90%, Danley’s Strategic Reinforcement Design® – which uses their tapered plate dowel and sleeve system combined with Danley® Dowels at the construction joints – provides more consistent joint performance over the full lifecycle of the pavement. The design also provides the highest deflection control tolerance in line with ACI 360R-10 standards, as well as complying with Concrete Society TR66 Rev. 1: External in-situ Concrete Paving and ACI 330.2R-17: Guide for the Design and Construction of Concrete Site Paving for Industrial and Trucking Facilities.