Cast-in-place process for ultra light foamed cement-based bearing heat insulation wallboard

Abstract

The invention discloses a cast-in-place process for an ultra light foamed cement-based bearing heat insulation wallboard. The process for preparing the bearing wallboard in a mode of directly pouring ultra light foamed cement on site comprises the following steps of: paving a bottom template and side templates to form a concrete forming die; paving a concrete protection layer cushion block on thebottom template, and then pouring fine stone concrete into the concrete forming die to form a reinforced concrete bearing layer; placing a plate frame for sizing and a reinforcing rib combined inner die on the initially non-set concrete of the bearing layer according to the design positions; pouring fine stone concrete into the combined inner die to form a frame and reinforcing ribs; pouring an ultra light foamed cement core material into a groove formed by the reinforced concrete bearing layer, the frame and the reinforcing ribs, forming an ultra light foamed cement heat insulation core layer after initial setting, and reserving the thickness of a waterproof surface layer; pouring waterproof fast hardened cement-based self-leveling mortar to the upper part of the ultra light foamed cement heat insulation core layer before initial setting to form the waterproof surface layer; and detaching the forming die after the waterproof fast hardened cement-based self-leveling mortar is hardened.

Description

technical field [0001] The invention belongs to the field of construction, and relates to a manufacturing process of a load-bearing board for a roof or an outer wall, in particular to a process for making a heat-preserving load-bearing wall board by using on-site pouring of ultra-light foamed cement. Background technique [0002] With the improvement of people's living standards, cities and some counties are developing along the direction of high-rise buildings. Now the building is generally constructed with a reinforced concrete frame structure, and at the same time, a lightweight ash brick is used to form the wall. When the building structure After the construction is completed, start to decorate the interior and exterior walls. On January 5, 2010, the Ministry of Public Security and the Ministry of Housing and Urban-Rural Development issued the "Interim Regulations on Fire Protection of Civil Building External Thermal Insulation Systems and External Wall Decoration", whic...

AI Technical Summary

Problems solved by technology

At present, the outer walls of buildings are generally made of concrete or block masonry. After the surface is leveled with cement mortar, the outer walls are mostly made of polystyrene boards and other organic plastic plates. Thin plaster insulation system, although it can meet the national building energy saving requirements of 65%, but There are problems such as non-fire prevention, poor construction quality on site, low construction efficiency, and long construction period.

[0003] With the advancement of science and technology, people have designed foamed cement materials as external wall insulation and fireproof boards. It is a class A fireproof material and can exceed the thermal insulation effect of expanded polystyrene boards. However, the waterproof performance of foamed cement is poor, and due to The dry bulk density is low, resulting in a decrease in strength, and the overall stiffness performance is poor, so it cannot be used as a load material

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