Tuesday, 17 September 2013

Three More Concrete Bases

Simon, Kieron and Graham spent the morning continuing the task of replacing the gravel flooring in the cold frames with concrete floors. Started a month ago, see blog entry 22nd August 'Cementing The Cold Frame Floors', the next three cold frames were changed today.

The Portland cement and ballast, at a ratio of 1:6, was placed in the cement mixer with water until thoroughly mixed. Once sufficient concrete had been poured into the frame's base it was levelled, floated and allowed to set.  

However, as the morning progressed, the weather started to change, with the sunshine fading fast and the rain starting to fall. Racing against the rain, they managed to finish the third frame and cover them all to protect the newly laid, wet concrete.

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