Method for building formwork-free composite heat preservation and sound insulation board and heat preservation and sound insulation floor

Abstract

The invention discloses a formwork-free composite heat preservation and sound insulation board. Upper and lower side polymer cement mortar reinforcement layers are arranged on both sides of a light heat preservation and sound insulation layer, the upper and lower side polymer cement mortar reinforcement layers are internally provided with glass fiber gridding cloths, and the upper side polymer cement mortar reinforcement layer is provided with a pouring filling part which extends inwards and can allow cement to pour and fill. The invention further discloses a method for building a heat preservation and sound insulation floor. The method includes the following steps that A, the formwork-free composite heat preservation and sound insulation board is prefabricated; B, the formwork-free composite heat preservation and sound insulation board is laid, and a reinforced concrete layer is poured; and C, a formwork support system is removed, and follow-up decoration construction is conducted. According to the method for building the formwork-free composite heat preservation and sound insulation board and the heat preservation and sound insulation floor, additional formwork laying and formwork disassembling are avoided, the formwork-free composite heat preservation and sound insulation board and the heat preservation and sound insulation floor are reliably connected with the reinforced concrete layer into the composite plate which integrates load bearing, heat preservation, heat insulation, sound insulation and separation as a whole, the construction procedure is reduced, and the potential safety hazard is lowered.

Description

【Technical field】 [0001] The invention relates to a formwork-free composite thermal insulation and sound insulation board and a construction method of a thermal insulation and sound insulation floor slab, which are applied to buildings, especially prefabricated buildings, and belong to the field of building materials. 【Background technique】 [0002] With the vigorous development of prefabricated buildings in the country, a large number of buildings using prefabricated concrete structures have been built. The prefabricated floor is one of the important components of the horizontal components in the prefabricated building. At present, prefabricated floor slabs mainly include two forms: prefabricated concrete laminated slabs and metal floor slabs. [0003] The prefabricated concrete composite slab is an integral bending member formed by pouring concrete on the top of the prefabricated concrete slab at the construction site. The advantage is that the prefabricated concrete sla...

AI Technical Summary

Problems solved by technology

Laying the thermal insulation layer on the surface of the floor is incompatible with the adjacent concrete and mortar materials, and the bonding force is difficult to guarantee, which often leads to the quality problem of hollowing between the insulation layer and the mortar and concrete.

[0013] Lightweight and efficient insulation materials, such as molded polystyrene foam (EPS) board, extruded polystyrene foam (XPS) board, phenolic board, polyurethane foam board, inorganic insulation board, rock wool, glass wool, cement Polyphenylene particle composite thermal insulation board, thermal insulation slurry, etc. generally have good thermal insulation performance and certain sound insulation function. They are very ideal thermal insulation, heat insulation, and sound insulation materials, but they generally have low strength, The problem of poor bonding ability between the surface and cement mortar

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