Parks for people's leisure and recreation can be seen everywhere in the city, and rockeries for workers'leisure can also be seen everywhere, but the method of making rockeries is particularly unique. Firstly, according to the rockery model made by landscape engineers, it is built with waste masonry materials. The shape of masonry is roughly the same as that of the rockery model planned by planners. In order to save information, hollow stone chambers can be built in masonry, and then reinforced concrete slabs can be used to cover the roof, leaving doors and vents. When the embryonic shape of masonry is completely built, the natural stone surface is imitated with 1:2 or 1:2.5 cement mortar. Cement rockeries made of this structure form, there are hollow rockeries, there are solid rockeries, will generally choose hollow rockeries, hollow is now the mainstream practice of cement rockeries.
The manufacturing process of rockery can be divided into nine steps.
1. positioning and lofting: positioning and lofting according to drawings, models and site conditions.
2. Embedding of pre-embedded parts: 70*100*6 pre-embedded parts are selected for cast-in-situ plate, 1.5-2.5 m distance; 70*100*6 pre-embedded parts are selected for structural column, 2 m distance.
3. Skeleton Manufacturing: The main data are 50 x 50 x 5 angle steel, 30 x 30 x 3 angle steel is not necessary, and rust-proof paint is applied. First, plastic-stone square skeleton is manufactured. The distance scale of skeleton angle steel is generally controlled between 1.8 and 2.5 M. Welding method is selected for joining. Then, the skeleton angle steel is inclined to the left and the right according to the model to make the approximate shape of the rockery.
4. Reinforcement mesh: After the frame is manufactured, the steel mesh is manufactured with 6 round steel. Welding method is used for the connection of steel mesh and angle steel and the connection of steel and reinforcing steel. The reinforcing steel mesh is controlled at about 18 *18-25 *25cm2, and the natural shape of initial bump and rugged is shaped according to the model.
5. Wire mesh: After the steel mesh is manufactured, the standard wire mesh of 3 *1/4 (4 mesh) is tied to it.
6. Plastering: After the wire mesh device is completed, the bottom layer is plastered with 1:1 cement mortar, the thickness is about 1-1.5 cm; after the first completion, the second plastering is carried out, the thickness is about 1.5 cm. After the two-layer plastering of the exposed part of the rockery is completed, the inner mortar of the rockery is polished in time with a thickness of about 1 cm.
7. Modeling: According to the model and the raw materials of the orogenic rocks, the plastic rockery is modeled to create veins and stripes.
8. Colouring: According to the extreme effect of the position of the moulded rocks, the appropriate iron oxide pigments are selected for adjustment and colouring.
9. surface oil: final surface oil treatment.
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