【Daily Topic】【Civil Engineering Version 20160912】
Thread Content
Participation reward: 2 Wealth. Reward for correct answer: 9 wealth points. Why is it necessary to consider leaving construction joints when pouring ready-mixed concrete? To ensure good integrity of the ready-mixed concrete, its pouring must be carried out continuously. However, due to technical and organizational reasons, interruptions are necessary. Then, construction joints should be left for testing purposes. Construction joints must be placed where the shear force on the member is minimal and where construction is convenient.
When a large amount of concrete is required for construction, and accidents occur during the process preventing continuous work, gap leaving can be employed.
When a large amount of concrete is required for construction, and accidents occur during the process preventing continuous work, gap leaving can be employed. Construction joints must be placed in areas of structural members where the stress is low. Before resuming construction, the loose concrete in the original joints must be removed; after applying pure cement slurry, concrete should then be poured
When a large amount of concrete is required for construction, and accidents occur during the process preventing continuous work, gap leaving can be employed. Construction joints must be placed in areas of structural members where the stress is low. Before resuming construction, the loose concrete in the original joints must be removed; after applying pure cement slurry, concrete should then be poured
A construction joint refers to the seam that forms between concrete poured in successive stages, due to design requirements or construction needs, during the concrete pouring process. A construction joint is not an actual \"joint\"; it is merely a junction surface that forms between the concrete poured later and the concrete poured earlier, as the latter is poured after the initial setting time of the former. This junction surface is what is referred to as a construction joint. If, for some reason, pouring cannot proceed continuously during construction and the downtime is likely to exceed the initial setting time of the concrete, an appropriate location for a construction joint should be determined in advance. When continuing to pour concrete at the construction joint, the loose materials and loose stones on the concrete surface should be removed, and the area should be washed clean with water. The strength of the concrete already poured at the construction joint must reach above 1.2 Mpa before new concrete can be poured.
A construction joint is a seam that forms between concrete poured sequentially due to design requirements or construction needs, as a result of pouring the concrete in stages. A construction joint is not an actual \"joint\"; it is merely a junction surface that forms between the concrete poured later and the concrete poured earlier, as the latter is poured after the initial setting time of the former. This junction surface is what is referred to as a construction joint.
The joint that forms between concrete poured at different times due to design requirements or construction needs, as a result of pouring in segments. It is because the concrete poured later exceeds the setting time, creating a joint with the concrete poured earlier; this joint is known as a construction joint.
If, for some reason, pouring cannot proceed continuously during construction and the downtime is likely to exceed the initial setting time of the concrete, an appropriate location for a construction joint should be determined in advance.
The joint that forms between concrete poured at different times due to design requirements or construction needs, as a result of pouring in segments. A construction joint is not an actual \"joint\"; it is merely a junction surface that forms between the concrete poured later and the concrete poured earlier, as the latter is poured after the initial setting time of the former. This junction surface is what is referred to as a construction joint.
A construction joint refers to the seam that forms between concrete poured in successive stages, due to design requirements or construction needs, during the concrete pouring process. A construction joint is not an actual \"joint\"; it is merely a junction surface that forms between the concrete poured later and the concrete poured earlier, as the latter is poured after the initial setting time of the former. This junction surface is what is referred to as a construction joint.