Concrete curing method for expressway high pier column over-form construction

Abstract

The invention relates to the field of concrete structures adopting rollover construction for rectangular and round equal-height pier columns in various industries, in particular to a concrete curing method for expressway high pier column over-form construction. Horizontal spraying water pipes are arranged on a turn-over formwork, and rapid dismounting hoses are arranged at the corners; when the formwork is dismounted after concrete pouring, the lower-layer four-corner hoses are disconnected; meanwhile, the upper-layer spraying water pipes are connected through the four-corner hoses, and then a main water supply pipeline is arranged by means of upper and lower spiral ladders and horizontal channels of each layer; the main water supply pipeline is connected with spraying water pipes around the formwork; and a water supply clean water tank frame arranged on the ground pumps water, so that timely spraying maintenance is achieved. Process operation is safe and reliable, and cost input is reduced; the formwork can be cured in time after being removed, so that the concrete curing quality is guaranteed, and the problem that in traditional curing, dryness and wetness are not in time is solved; and meanwhile, maintenance water can be collected in time, and waste of water resources is avoided.

Description

technical field [0001] The invention relates to the field of concrete structures for rectangular and circular pier columns of equal height in various industries, and in particular relates to a concrete maintenance method for high pier columns of expressways with overturning construction. Background technique [0002] Concrete construction of high piers and columns usually adopts the methods of turning over formwork, sliding film and climbing formwork. The specific selection is based on the structure shape, height and quantity. Concrete maintenance is a difficult point, and it is also a key point. After the conventional formwork is turned up, the curing agent is applied to the surface for curing. In this way, when the curing agent is applied, the operating platform needs to be processed separately. When it is used, it is hoisted and suspended. Finally, repeated work is required, and the cost of the process increases; secondly, people frequently go up and down, and the frequen...

AI Technical Summary

Problems solved by technology

[0002] Concrete construction of high piers and columns usually adopts the methods of turning over formwork, sliding film and climbing formwork. The specific selection is based on the structure shape, height and quantity. Concrete maintenance is a difficult point and also an important point. After the conventional formwork is raised, the curing agent is applied to the surface for curing. In this case, when the curing agent is applied, the operating platform needs to be processed separately. When it is used, it is hoisted and suspended. In the end, repeated work is required, and the cost of the process increases; secondly, people frequently go up and down, and the frequency of passing is high, which is prone to safety problems; there is also the use of plastic film to wrap health, this method is effective, but because the height of each upturn is 4 ~ 6m, in the It is difficult to wind after the upper and middle parts are demolished, and the winding is affected by the upper and lower ladders and wall parts. The concrete surface cannot be completely wrapped, which affects the maintenance effect. Secondly, after winding, it is necessary to cooperate with the ladder cage to complete the plastic film fixing, which is difficult and risky to operate. There are also methods such as spraying with sprayers and sprinkling water, but both methods have limitations. They can only complete the maintenance of pier columns on one side and within a certain height range, and cannot guarantee that all concrete is fully cured.

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