Construo’s Post

Bid race begins for £1bn concrete road replacement deal National Highways has opened the bidding for a new six-year framework to deliver a major programme of concrete road replacement. https://lnkd.in/d_cRNfqG

Construction News: Tarmac has been trialling new formulations of noise-reducing concrete for National Highways in Cornwall. http://dlvr.it/THBYGC #AtmoTechnology #concreteroads #southwest #Tarmac #Topoff

A is for Aggregates! These aren't just pebbles on the beach! Aggregates - crushed rock, sand, and gravel - are the essential building blocks of our construction world. They form the base of concrete, asphalt, and other key materials that build our roads, bridges, and buildings! #CivilEngineering #Construction #Materials

Sshhhhhhh! A section of the A30 in Cornwall has become one of the first in the UK to trial a novel grade of concrete that reduces road noise. In a National Highways trial, the specialist technique has been used by Tarmac, Wirtgen and Atmo Technology. WIRTGEN GROUP National Highways Tarmac https://lnkd.in/etiyMZRR

Tunnelling Solutions a Gamuda Berhad business kicking goals in Sydney Metro Great to have this internal capability

#ThisisULMA   Are you planning your next bridge project?   Our innovative vision is based on a commitment to the most advanced technology, such as the balanced cantilever method, which consists of constructing the bridge deck, starting from the piers, with mobile formwork carriages. First, the first segment on the pier, known as the pier segment, is built on-site. The balanced cantilever formwork carriage supports the weight of the segment being built. Half of the structure is supported and fastened to the previous segment; the rest is cantilevered.   The most efficient solution for: ✅Bridges with spans up to 200 m. ✅There are riverbeds, intersections between several roads, and land where railways and roads converge simultaneously. ✅The pier heights exceed 50m.   System Advantages: ✅The work is performed in a reduced area on the deck and doesn’t interfere with traffic. ✅Flexibility: the ability to build decks with variable depths and distances between spans. ✅Hydraulic system for leveling and forward movement of the CVS carriage, reducing the labor force needed and construction times. ✅High load-bearing capacity: Larger segments can be made.   See this solution in the Bridge over the Grand River, in Ontario 👉 https://lnkd.in/gJ536RVf Learn more about this system 👉 https://lnkd.in/gHqe-NVq   #Civilworks #civilengineering #CVS #bridgeformworksystems #construction #bridgeconstruction #Formwork #ULMAConstruction #ULMAConstructionCanada  

Sshhhhhhh! A section of the A30 in Cornwall has become one of the first in the UK to trial a novel grade of concrete that reduces road noise. In a National Highways trial, the specialist technique has been used by Tarmac, Wirtgen and Atmo Technology. WIRTGEN GROUP National Highways Tarmac https://lnkd.in/etiyMZRR

Public inquiry into infilled bridge due to start A three-year-long battle to force National Highways to remove #concrete used to infill a historic bridge is to be decided by the #planning inspector at a #publicinquiry. According to #NationalHighways, "#infilling is when we support a #bridge by placing #structural fill material under the whole of the arch to prop it up from underneath". A century after #ConghamBridge was opened, it had become #corroded and began to develop #fractures. This led to National Highways deciding to fill it in with concrete in 2021, arguing it had “serious structural issues” meaning it had become unsafe and that it was the most #costeffective action it could take. Why was the action #controversial? It was supposed to be a #temporary measure. #HighwaysEngland said the work carried out was an emergency measure to support the structure - but it later broke permitted development regulations when it failed to remove the concrete within 12 months. In October, Borough Council of Kings Lynn & West Norfolk councillors rejected an attempt by National Highways to apply for retrospective permission for the work to be made #permanent. Instead, the council took #enforcement action against National Highways. Why is the bridge special? Congham Bridge is one of just six which were built in the 1920s by William Marriott, engineer of the Midland and Great Northern #Railway, featuring curved wingwalls and a "rare surviving example of an early modular concrete structure". #Heritage groups claim the structural issues were misrepresented and that it should have been repaired to preserve this piece of railway history. What do all the groups want to happen next? Michael de Whalley, chairman of Congham Parish Council, said in December: "National Highways' actions were very frustrating. "There are fantastic possibilities if it is reopened, but how do you maintain a bridge if it is encased in concrete?" The parish council had hoped the work would be undone so the bridge "can be used as something more constructive such as a cycleway or greenway". Hélène Rossiter, head of the Historical Railways Estate at National Highways, said recently that infill was "essential to ensure the bridge can carry traffic safely" Meanwhile, Graeme Bickerdike, of the Heritage Railway Estate Group which wants the infill removed, claimed new information had revealed a “clearer picture” about the circumstances and decision-making that resulted in the bridge’s infilling. Congham Bridge is one of 51 bridges that have been infilled since 2013 at a cost of £8m, according to the Heritage Railway Estates Group. Engineers have recently completed digging out hundreds of tonnes of concrete from Great Musgrave Bridge in Cumbria after Eden District Council ordered it to restore the Victorian structure last year.

#CEVO - Low carbon concrete - Pioneering the evolution of concrete We've aligned our low carbon concrete supply with the ICE (Institution of Civil Engineers) Green Construction Board Low Carbon Concrete Route map ratings. That means all you need to do is ask for CEVO concretes, specify your carbon reduction target, and we'll engineer the ideal low carbon concrete solution. https://lnkd.in/eknxUSmj #lowcarbon #tarmac #concrete

A trial of a new concrete refurbishment technique on a section of the A30 in Cornwall has seen noise reduced by up to seven decibels. The National Highways trial with Tarmac, WIRTGEN GROUP and Atmo is one of the first in the UK to trial the technique. https://lnkd.in/eJ3WpG85