How to maintain the stone in the garden landscape fountain?

Garden waterscape project is a highly professional construction technology, improper construction will not only affect the landscape effect, but also lead to the stone surface caustic soda, increase later maintenance costs. In recent years, with the continuous development of the garden industry, the use of stone has reached a historical peak, but the construction process has been little improved, resulting in serious pollution of stone in the later period, and the lack of effect of stone carving fountains in garden landscape.

Garden landscape fountain stone carving

We start from the path of water intrusion, prevent "caustic soda" before construction, and eliminate "caustic soda" from the source.

Pool facade stone "caustic" principle: caustic caustic phenomenon has internal reasons and external reasons.

Internal reasons: mainly because of the existence of soluble salts and alkali substances in the stone, such as Ca2+, K+, Na+, etc., through the capillary between the marble and granite seepage stone surface, resulting in "caustic soda".

External reasons: Because the material has a certain permeability, the water penetrates the inside of the material, and the soluble substance is dissolved. When the material is dry, the water migrates from the inside out, carrying the soluble substance to the surface of the material, and as the surface water evaporates, the white soluble substance remains on the surface, that is, the caustic soda phenomenon occurs. Stone sculpture wind water balloons

Water pool facade stone "caustic" solution measures:

1. Apply special treatment agent to the surface of the SLATE or brush resin glue on the bottom of the stone plate to form a waterproof layer and cut off the way of "caustic soda". In general, before installation, special treatment agent is applied on the back and side of the stone, so that the solvent can effectively penetrate into the stone and block the capillary, so as to effectively cut off the water, salt and alkali substances into the production path of caustic soda phenomenon.

2. Choose stone with poor permeability and dense texture to minimize water penetration;

3, cement mortar mixed with appropriate amount of water reducer, dense paste, reduce CaOH2, salt and other precipitation, reduce water penetration.

4, do a good job of waterproof layer to reduce water intrusion. Priority should be given to concrete walls or stone walls as retaining walls, with waterproof treatment on the inside. A tide-proof layer should be set up in the walls above the ground, and a drainage outlet should be reserved on the walls. At the same time, anti-seepage treatment should be done.

5, the use of physical means, technological means to cut off the process gap water penetration. External wall stone decorative surface, wall plate as far as possible to reduce the gap, the gap should be physically treated, and the use of sealant sealant sealant, gap treatment is completed, the whole area of the stone spray waterproof agent.

Water pool facade stone veneer to prevent "caustic soda" process:

Once the water pool facade stone problem occurs, it is difficult to clean up later, so it should focus on prevention. In the construction process, the following processes should be emphatically considered.

1, garden pool (stone fountain, stone feng shui wheel, stone wind water balloon) choose better water quality, the use of water treated tap water, careful use of groundwater;

2, in the choice of stone, as far as possible to choose dense texture, poor permeability of the stone material, in the process, as far as possible to increase the material specifications, reduce the number of stone veneer gaps, pay attention to the aesthetic consideration of the design scheme can take large material cut false seam processing to meet the design requirements;

3. After the stone arrives, the stone surface should be treated, and special treatment glue or brush resin glue can be used to cut off the "caustic soda" caused by stone penetration as far as possible

4, the structure layer should be prepared in advance of the waterproof layer, the cement mortar bonded to the veneer needs special treatment, add waterproof agent, strict requirements in the construction process, as dense as possible;

5, through physical means to deal with the stone "joint".

The specific means are as follows:

1. If the pool and the bottom of the pool facade are laid with 200*200*20 thick materials, 600*600*20 materials are selected for laying in the construction, and the middle is cut into false joints to minimize the number of gaps in the pool facade and minimize the possibility of caustic soda;

2, in the stone and stone joints, stone facade cut a deep 9mm seam, insert the width of 21mm thickness of 1mm stainless steel plate or PVC material, sealed with adhesive, stainless steel plate should be kept straight, cut off due to the gap caused by water entry, specific practice see the figure:

3, the top steel plate and the steel plate of the vertical construction joint are bonded with glass glue, and the specific construction is positioned according to the specific size, so that the horizontal and vertical steel plates are misaligned but can be closely connected, and the glass glue is bonded between the two steel plates to prevent the gap between the steel plate and caustic soda;

4. Other gaps in the top stone are used to plug leaks.

Precautions during construction:

1, the stone must be dry, clean the stone surface before use, the stone treated with protective agent shall not be eroded by rain before natural drying (more than 24 hours at normal temperature), the environmental temperature below 4℃ should not be constructed, the wet installation of the stone, with the protective agent used in conjunction with the better effect;

2, the design process to consider the elimination of caustic soda, as far as possible to design into a dry hanging form, consider the waterproof treatment of the structure, select water absorption and other physical properties meet the requirements of the stone material;

3, laying operations, should not be a large amount of water on the stone and wall, appropriate water to wait for the stone to dry before paving;

4, the stone construction process should be done in advance to prevent caustic soda preventive measures, strict control of the construction process, paste mud full and dense, and the stone back protective agent together to form a closed barrier to prevent the precipitation of water and alkali in the mortar;

5, adhesive mortar material to avoid the use of sea sand;

6, when the stone gap physical prevention, stainless steel sheet or PVC material should be straight, the slot should be cleaned and filled tightly, the stone and stainless steel plate should be bonded tightly, the bonding between the stainless steel plate should be controlled in the early stage of the size position, so that the board and the board are closely connected.

The treatment of caustic soda:

1, as soon as possible to the wall, plate joints, plate surface waterproof treatment, to prevent water from continuing to invade, limit the control of the continued expansion of caustic soda;

2, the use of stone caustic cleaning agent for cleaning, for part of the stone surface caustic caustic has a certain effect, before use, need to do a small sample test block to test the effect and decide whether to use;

3, the treatment effect is not ideal, water drying with epoxy polyurethane primer treatment;

4, such as the solution to the high-wall waterscape pool is to suggest that the designer change to stone dry hanging, the bottom of the pool is raised, and the pipeline can be hidden under the overhead, and on the basis of solving the problem of caustic soda, the pipeline can also be hidden.