Corrosion of steel bars and inadequate support of the main framework are the main reasons for the collapse of the plastics rockery. Therefore, how to enhance the service life of the steel bars and the main framework is the key to enhance the service life of the plastics rockery. Xihua Garden Landscape as a professional design and production company of stone moulding rockery, through many years of construction and production, summed up the following experience.
The adjustment of the main frame is to use hot-dip galvanized steel welding, at the same time for welding parts of high-strength anti-rust treatment, brush twice anti-rust paint. Multi-step measures have greatly strengthened the structure of the main skeleton, and the usage of stone moulding rockery is also greatly easy to install.
The steel bar skeleton in the plastic rockery mainly plays the role of shaping. 40% of the steel bar skeleton is covered in the surface mortar of the rockery. The remaining part is exposed in the air. Long-term contact with water will rust. While the steel bar rusts, accompanied by the expansion of the shape, it will also affect the surface mortar of the rockery, which will lead to the cracking of the surface of the rockery. My company has tried to brush anti-rust paint to prevent, but in the long-term use of the situation will appear anti-rust paint failure, the need to repeatedly brush the problem, greatly increasing the cost of plasticine rockery maintenance.
If the reinforcing bars are completely covered in cement mortar, thus insulating the air and moisture, so that there will be no rust.
The internal shotcrete technology of plastic rockery mainly adopts special shotcrete machine to spray the special mortar on the steel bar position inside the plastic rockery, the thickness is 1.5 cm, so as to achieve the purpose of covering the internal steel bar.
The spraying process is divided into two layers. The first layer is composed of a composite mortar layer with a thickness of about 0.5 cm, which is sprayed by a special composite anticorrosive mortar. The second layer is composed of ordinary cement mortar layer with a thickness of about 1 cm. The advantage of the spraying machine is that the density of spraying is high and the structure is not easy to fall off.
After the completion of the internal shotcrete process, the thickness of the surface layer of the plastic rockery is greatly increased, which not only increases the stability of the whole plastic rockery, but also effectively prevents the corrosion of the steel bar layer, thus greatly enhancing the service life of the plastic rockery.
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