10 common stone decoration quality problems and their prevention

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1. Black seams appear in the seams of stone

◆Common phenomenon

Black seams are visible in the seams of stone craftsmanship

◆Cause analysis

1. The drawings are not deepened in place, and the project department does not provide technical explanations to the team. Clear;

2. The workers ignore details and the craft seams are reversed.

◆Preventive measures

(As shown in the correct picture) When deepening the design, consider the relationship between the seams and the line of sight. Use "node A" for the craft seams above the line of sight, and vice versa, below the line of sight. The craft seam adopts "Node B".

2. Stone edge bursting

◆Common phenomenon

The smoothness of the flat joints on the stone wall is poor.

Stone cutting There is a phenomenon of exposed edges

◆Cause Analysis Stone Research Society (IDstone5A)

1. The properties of the stone were not analyzed in the early stage and the construction technology to solve the defects of the stone was not provided;

2. Processing, transportation, installation and other links lead to edge explosion.

◆Preventive measures

1. Stones are strictly inspected when entering the site, and inferior and damaged stones are strictly prohibited from entering;

2. Stone joints are deepening At the design stage, it is recommended to leave V-shaped seams to avoid close-fitting solutions;

3. Arrange the manufacturer to make an inverted V-shaped bevel on the front of the stone, and lining the back strip on the back of the stone, and avoid inverted V-shaped corners on the board surface. If the stone is uneven, install and cut the lining backing strip;

4. When installing stone flat joints, provide explanations to the construction personnel. If there is edge explosion, you can use marble glue of the same color to repair it.

3. The overhanging stone base frame is installed incorrectly

◆Common problem

The inner base frame and wall surface of the cantilevered stone countertop are loose and deformed

◆Cause Analysis

1. The wall foundation is loose. After installing the base frame, the next process is carried out without inspection and acceptance;

2. The angle iron is not used as the base frame. Or the iron frame may become loose and deformed due to unreasonable stress points when installing and fixing it.

◆Preventive measures

1. Loose wall foundations are usually made of hollow bricks or aerated brick walls. Preventive measures must be organized and implemented before construction, and process acceptance and handover must be done well. , and there must be written records;

2. The interior of this cantilevered table top must be supported and fixed by a steel frame. Pay attention to the stress points when positioning. Wall bolts can be used to fix the steel frame (such as The correct node diagram is shown).

4. Improper handling of inner corners

◆Common phenomenon

Small black holes appear at the joints of stones (or wall tiles)

◆ Cause analysis

1. The early planning was not in place, and the processing drawings did not have 45-degree splicing or overlapping processing;

2. The repairs were not made in time.

◆Preventive measures

1. The splicing angle should be considered in the early planning, and should be taken into consideration when deepening the drawing and placing the order (internal cutting of about 45 degrees), and the internal angle should be overlapped, also Guaranteed through seams. (As shown in the picture below)

2. The quality of materials is strictly controlled when receiving them, and workers are required to handle them with care during the construction process.

5. Translucent marble appears in shadow

◆Common phenomenon

After translucent marble or other translucent materials are installed

The shadows on the steel frame or hanging points are obvious

◆Cause analysis

1. The early planning and drawings are not deepened in place;

2. The translucent marble is not done Transparency test.

◆Preventive measures

1. A sample of key parts must be made to determine the specific construction methods to ensure the final decorative effect of the light-transmitting shape.

2. The method of translucent modeling must consider: the transparency of the translucent material and whether there is light leakage; the illumination of the light, the floodlight effect of the base material, the density of the lamps, the distance from the translucent facing material, The ease of maintenance and fire protection requirements of the lamps; the impact of the supporting frame (steel frame or other materials) and the shadows at the hanging points on the light-transmitting modeling effect; for the shadows of the light-transmitting modeling, it is necessary to consider simplifying the supporting frame and hanging points.

6. The marble texture on the wall is messy

; ◆Common problem

The texture of stone with strong pattern texture is obviously not connected

The entire wall is messy

◆Cause analysis

1. The project department did not communicate properly with the stone factory;

2. The project department did not perform back-end processing Follow closely;

3. Processing manufacturers have weak awareness of typesetting quality;

4. Workers have weak awareness of installation and do not follow the typesetting sequence number;

◆Preventive measures< /p>

1. First of all, the layout should be done as a whole and the marbles of the layout should be numbered.

2. The marble factory should layout and cut according to the number (the company should have on-site personnel to supervise).

3. The cut marbles are delivered to the project strictly according to the layout numbers, and the workers install them strictly according to the numbers.

7. Black seams appear when closing stone grooves

◆Common phenomenon

There are large gaps when closing stone groove plates with stainless steel and other related materials.

Or there are other materials pressing the grooved plate, causing holes in the closing edges

◆Cause analysis

1. The order size of the grooved plate is not accurate;

2. The construction and installation by on-site workers were not in place and the cutting was not done properly;

◆Preventive measures

1. When placing an order, the management staff should conduct an on-site review and accurately place the order first. Line, and then accurately place an order based on the actual size of the stone on site to ensure accurate order size.

2. The length of stainless steel can be appropriately lengthened during processing, and the corners can be cut on site to avoid a shortage of stainless steel length caused by uneven reserved spaces during stone construction.

3. When deepening, leave a process groove at the closing end, and make the closing end of the groove plate flat and the size should be uniform. The stainless steel edge should be 2-3 mm higher than the stone to ensure a perfect edge.

8. Irregular stone fire doors

◆Common phenomenon

Irregular stone fire hydrant doors

◆Cause analysis< /p>

1. The order size of the grooved board is not accurate;

2. The construction and installation by the on-site workers are not in place and the cutting is not done properly.

◆Preventive measures

1. The method of using stone doors must be carefully planned. For the rotating shaft, handle, positioner, steel frame, stone door leaf bevel, door leaf opening angle, door leaf reverse method, etc., all need to be considered. The door leaf must be firmly installed and easy to open. Generally, no steel frame, light steel keel or other base layer will be visible inside after opening.

2. If the door leaf is on the floor, the ground stones need to be paved into the door. If you feel that the gap at the bottom of the door leaf is large, you can raise the bottom of the fire hydrant door by about 100mm (the height can be determined according to the layout of the stone on the site wall).

3. The back side of the door leaf can be treated with tinplate, aluminum-plastic board or other finishes, with the basic requirement being that the base layer is not visible.

4. Pay attention to the opening angle of the fire hydrant door to ensure the normal use of the fire hydrant.

9. Stone step reflective light trough

◆Common problem

The original design of the lower opening of the step reflective trough did not consider the reflection of LED.

Causes a clear reflective lamp bead to appear on the ground,

Affects the overall aesthetic effect

◆Cause analysis

The mirror surface of the ground stone was not considered during the early construction process Reflection, resulting in obvious reflection of the ground lamp beads after the LED is installed.

◆Preventive measures

Add an acrylic light shielding plate under the step reflective light slot, pay attention to the thickness and light transmittance of the acrylic.

Add a 3CM stone back strip to the bottom of the stone baffle on the side panel of the step reflective light trough, and fix the LED light strip straight on the back strip to effectively prevent the reflection of the LED on the ground.

10. Cracking of stone steps on spiral staircases

◆Common phenomenon

Cracking of stone steps and cracks

◆Cause analysis

1. The stone is directly laid on the steel plate. When the stairs are in normal use, uneven stress on the stone surface can easily cause the steel stairs to vibrate and deform, leading to cracks in the stone.

2. Different rebound forces occur due to different thicknesses, support points and spacing of the steel plates. The rebound forces are greater than the bonding force between the mortar and the steel plates, causing cracks in the stone.

◆Preventive measures

The back of the steps is made of granite, with a 40*60 square tube base and inlaid shock-absorbing strips up and down.

Source: Xinzhu Times

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