Can cement blanket be used safely?

We all know that concrete is an important raw material for building construction. However, in some complex terrain environment, it is often necessary to manually mix concrete and other materials, which can not only mix unevenly, but also produce a lot of dust, which is time-consuming, laborious and inefficient. In order to solve these problems, our uncle invented a new material.

Let's take a look at the magic Technology: Yes, this time, the subversion of traditional concrete is the concrete blanket, which usually looks like an ordinary blanket, but after pouring water, it will quickly become a hard concrete layer! This unique material can be easily installed. It has the toughness of textiles. It can be hung vertically or laid in grooves. It can be cut at will. The size is only 15kg per square meter. It is very convenient to transport. After watering, its strength and life are equivalent to the traditional concrete, and it has excellent waterproof performance. It can be widely used in railway, water conservancy, highway, agricultural irrigation and other fields. Most importantly, the use of this new material can save 90% of the traditional materials and shorten the construction period by 60%.

The new type of cement blanket is a kind of soft cloth impregnated with cement, which will react with water and harden into a very thin waterproof and fireproof durable concrete layer. The cement blanket is made of 3D fiber matrix woven with polyethylene and polypropylene filament, and contains dry concrete mixture with special formula. The main chemical components of calcium aluminate cement are Al2O3, Cao, SiO2 and Fe2O3. The bottom of the canvas is covered with polyvinyl chloride (PVC) backing to ensure that the cement blanket is completely waterproof. During site construction, there is no need for any concrete mixing equipment on site, as long as the cement blanket is simply watered or soaked in water to make it hydrated. After solidification, the fiber can strengthen the concrete and prevent cracking. At present, the cement blanket is 10 mm thick.

Later maintenance and precautions of Hanji cement blanket

1. This material is used in Central China, and its design life is more than 50 years. In order to prolong the service life, it is suggested that the material should be maintained every 5-10 years, and a layer of cement slurry should be brushed on the surface of the material blanket, which can effectively extend the service life of the material.

2. After the strength of the material reaches 10.0MPa, it can bear the load of personnel and light construction machinery.

3. It is not allowed to knock or pull the material after pouring water until the final strength is formed; it is not allowed to knock the material with sharp objects.