Railroad maintenance crews in the U.K. have been using sprayed polymer to strengthen track ballast for about a decade. One contractor now aims to go one step further and use strengthened ballast as a non-intrusive reinforcement for some of the country’s 25,000 aging brick-and-stone arch bridges. Balfour Beatty Rail Ltd., Redhill, is offering a method to treat a bridge and its polymer-coated ballast as a composite structure. The resulting enhanced strength of the arch can eliminate the need for concrete or steel reinforcement, says Andy Curzon, BBR’s head of technical services. The technique, called XiSPAN, would preserve the appearance of
The growing need to collect, store and analyze the huge volumes of data collected from infrastructure project stakeholders is generating a new growth area for construction-sector firms, IT vendors and professionals.