Construction method of concrete flue top plate insulating layer

Abstract

The invention discloses a construction method of a concrete flue top plate insulating layer. The method includes the steps of firstly, setting a bottom form plate of a top plate after the construction of the concrete structure below the top plate is completed, and moving the bottom form plate downwards at the distance equaling to the thickness of one insulating layer; secondly, setting a retaining plate vertically standing on the inner side of a concrete lateral wall and with the height equaling to the thickness of the insulating layer on the periphery of the bottom form plate; thirdly, binding a reinforcing steel bar mesh piece above the bottom form plate, setting a cushion block placed on the bottom form plate belong the reinforcing steel bar mesh piece, and allowing the reinforcing steel bar of the reinforcing steel bar mesh piece to have an anchoring section penetrating the retaining plate into the concrete lateral wall; fourthly, allowing the lower hook body of each vertical hook to be hooked on the reinforcing steel bar mesh piece, binding each lower hook body, pouring fire-resistant coatings on the bottom form plate, and toweling the coatings while pouring; fifthly, laying an expanded perlite board on the fire-resistant coatings; sixthly, plastering a layer of cement mortar on the expanded perlite board. By the method, construction period can be shortened, construction materials can be saved, and construction cost can be lowered.

Description

technical field [0001] The invention relates to a construction method for an insulating layer, in particular to a construction method for an insulating layer of a concrete flue roof. Background technique [0002] The reinforced concrete flue has been used in industrial production for a long time due to its long service life and good sealing performance. In the flue, the insulation layer plays a vital role in the protection of the durability of the concrete. See figure 1 At present, the construction of the flue insulation layer mostly adopts the method of spraying. The steps of this method are: 1) Complete the construction of the concrete flue, and pre-embed the vertical steel hook 5 in the concrete roof 2 in advance; 2) Install the concrete roof 2 The Φ6 reinforcement mesh 8 connected to the lower end of the pre-embedded vertical steel hook 5 is bound under the bottom of the concrete roof 2; 3) Spray 80mm thick refractory spray paint 6-diatomaceous earth under the concrete ...

AI Technical Summary

Problems solved by technology

The construction of the insulation layer needs to be carried out after the formwork of the flue concrete roof is removed, which directly affects the construction progress and prolongs the construction period

In addition, the method of spraying from below is used to complete the construction of refractory materials and refractory mortar, which will waste part of refractory materials and refractory mortar, and increase construction costs

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