Whether the ground floor of a house is suspended or filled, it will include either a solid slab or an oversite layer of concrete laid on compacted hardcore directly on the ground. Both hardcore and soil are potential sources of sulfates and other chemicals harmful to concrete. This programme investigates the hardcore components and soil conditions likely to contain sulfates, explains how concrete is affected by sulfate attack and looks at methods used to prevent such damage.
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Think of a skyscraper and you likely envisage a imposing monolithic structure made of steel and glass. Strong, sturdy, predictable. Dull? But a new wave of buildings are turning to a more traditional building material – timber – to deliver imaginative and eco-friendly projects, even at altitude.