【Daily Discussion】Utilities - Civil Engineering - 20210423
Thread Content
The following situations may cause concrete segregation ( ). Select one or more options: A. Large free fall height of the concrete B. The vibrator is inserted quickly and withdrawn slowly C. Uneven transportation roads D. High temperature of the concrete E. Excessive vibration time. Answer: ABCE. Feel free to participate actively in the discussions; the system offers generous rewards for answering questions posed by VIP members! ! !
Analysis of A, B, C, E: The free fall height of the concrete is 3 m; the vibration time is too long; the transportation route is uneven; inserting and pulling out the vibrator slowly may cause segregation of the concrete