Waterproof protection material for surface layer of prefabricated outer wall and manufacturing method of waterproof protection material

Abstract

The invention relates to a waterproof protection material for a surface layer of a prefabricated outer wall and a manufacturing method of the waterproof protection material. The waterproof protection material comprises the following components in parts by weight: 200-300 parts of cement, 15-30 parts of silica fume, 50-80 parts of mineral powder, 500-800 parts of machine-made sand and 15-35 parts of an additive. The manufacturing method comprises the following steps: firstly, automatically metering and proportioning all the components; sequentially adding the machine-made sand, the cement, the silica fume, the mineral powder and the additive into a stirrer; conducting stirring at low speed at first and then at high speed; after the stirring is completed, detecting uniformity, consistency and fluidity, and manufacturing a test block for testing waterproof effect, the shrinkage of mortar and bonding strength; and applying the obtained product to practical use after detection is qualified. According to the invention, erosion of water vapor to concrete is effectively blocked, the carbonization speed of the concrete is reduced, failure phenomena such as cracking, peeling and falling off in a later period are avoided; and thus, multiple brushing in the later period is effectively avoided or reduced, operation and maintenance cost is reduced, and the service life of a prefabricated concrete component is prolonged.

Description

technical field [0001] The invention relates to the technical field of building materials, in particular to an assembled prefabricated outer wall surface layer waterproof protection material and a manufacturing method. Background technique [0002] With the widespread application of prefabricated buildings, especially the application and promotion of concrete prefabricated components, the requirements for waterproof and stain-resistant concrete surfaces are also getting higher and higher. The surface protection of traditional concrete prefabricated components is mainly post-coating process, that is, acrylic paint or silicone waterproof material is applied after the prefabricated components are installed. These two types of materials form a film on the surface of the component, thereby isolating the action of water vapor on the concrete component. There are two problems here, one is the unreliability of the painting process, and the other is that the protective film is easy ...

AI Technical Summary

Problems solved by technology

There are two problems here, one is the unreliability of the painting process, and the other is that the protective film is easy to deform, crack and fall off under the action of dry, wet, cold and heat.

Both of these will reduce the protective reliability of the protective layer and reduce the protective effect, resulting in a shortened service life of the concrete

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