【Daily Topic】【Civil Engineering Version 20160417】
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This post was last edited by hesonchang214 on 2016-5-12 at 16:34. Reward for participation: 2 Wealth. Reward for correct answer: 9 wealth. True or False: To ensure a tight bond between the upper and lower layers of concrete in layered pouring, the vibrator should be inserted into the lower layer (the freshly poured concrete) to a depth of at least 50 mm. Correct answer: Yes
To ensure a tight bond between the upper and lower layers of concrete poured in layers, the vibrator should be inserted into the lower layer (the freshly poured concrete) to a depth of at least 50 mm. (Yes)
To ensure a tight bond between the upper and lower layers of concrete poured in layers, the vibrator should be inserted into the lower layer (the freshly poured concrete) to a depth of at least 50 mm. ( Right )
Correct,,,,,,,