Wednesday, June 13, 2007

Top and anchor beam of retaining wall

On 8th June 2007, the progress is same as the contractor said, all beams were builded in the morning. Normally, the the concrete will be stable on next 2 days so the formworks must be use for all this time. while the concrete are setting, it needs enough water therefore the concrete loses water by heat and chemical process. The concrete must be keeping wet to preserve the water. this process called "concrete curing".

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