Method for constructing thermal insulating layer of concrete flue top plate

Abstract

The invention discloses a method for constructing a thermal insulating layer of a concrete flue top plate. The method comprises the following steps of 1) erecting a bottom formwork of the top plate and moving the bottom formwork downwards by the thickness of a thermal insulation layer after the construction of a concrete structure below the top plate is completed; 2) erecting baffles standing on the inner side of a concrete side wall at the periphery of the bottom formwork, and ensuring that the height of the baffles is larger than the thickness of the thermal insulating layer; 3) binding a steel bar net above the bottom formwork, and arranging cushion blocks below the steel bar net, wherein the thickness of the cushion blocks is the thickness of a steel bar protective layer, the cushion blocks are arranged on the bottom formwork to underlay the steel bar net, and steel bars forming the steel bar net are provided with anchoring sections which penetrate through the baffles and extend into the concrete side wall; 4) hooking lower hooks of vertical hooks onto the steel bar net, binding, and pouring a gunning material on the bottom formwork, wherein the gunning material is smoothened in the pouring process; 5) laying an expanded pearlite board on the gunning material; 6) plastering a layer of cement mortar on the expanded pearlite board. According to the method, the construction period can be shortened, construction materials are saved and the construction cost is reduced.

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, and the steps of this method are: one) complete the concrete flue construction, and pre-embed the vertical steel bar drag hook 5 in the concrete roof 2 in advance; The Φ6 reinforcement mesh sheet 8 that links to each other with the lower end of pre-embedded vertical steel drag hook 5 is bound below; Three) Spray 80mm thick refractory spray paint 6-diatomaceous earth below the concrete roof 2; Four) Wipe 20mm thick...

AI Technical Summary

Problems solved by technology

[0003] In order to solve the problems existing in the prior art, the present invention provides a construction method for the insulation layer of the concrete flue roof, which solves the problems of long construction period, waste of construction materials and high construction cost in the prior art.

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