Why does terrazzo crack, and how to repair cracks in terrazzo floors?

1. The quality of cracks in the ground of the watering terrazzo is mainly due to the unreal backfill on the ground, the uneven surface or the freezing of the base layer in winter; The horizontal elevation of the ditch cover plate is inconsistent, and the filling joints are not compact; The foundation brick wall of the lower part of the doorway or door opening is built too high, resulting in uneven or too thin cushion thickness, causing cracks in the ground.

2. Cracks occur in the terrazzo layer on the ground floor, mainly because the construction period is tight and the structural settlement is unstable; The cushion and surface processes are too tight, the cushion material shrinkage is unstable, the concealed cable pipeline is too high, and the surrounding mortar is not well fixed, resulting in surface cracks.

3. In front of the existing terrazzo ground, the base is not cleaned, and the precast concrete floor joints and end joints are not compact, which will affect the integrity and stiffness of the floor slab, and cracks will be caused when the ground load is too concentrated.

4. The grid of the ready-made terrazzo ground is improper, forming a narrow grid belt, and it is easy to have cracks on the narrow grid belt.

Because the cement ash is too large, and the proportion of sand is not suitable, the expansion force of Junya cement is strong, so the terrazzo is easy to crack.

The ground is not stable in the first place, and it also subsides. opening a shop and other phenomena, so terrazzo on the ground. This phenomenon can also occur.

If there is a crack on the opposite side, if it is not serious, it can be repaired directly with a secret reagent. If it's serious, it can only be a two-inch military cut. Then patch it again.

During the construction process of terrazzo, the bottom is loose and hollow, and there is no vibration compaction when doing the surface layer, which will cause cracking. Terrazzo cracks can be filled with cement mixed with a small amount of fine sand, and can be repaired by grinding and smoothing with wet water after drying.

The quality of cracks in the ground of the watering terrazzo is mainly due to the unreal backfill of the ground, the uneven surface or the winter of the base layer.

Freeze; The horizontal elevation of the ditch cover plate is inconsistent, and the filling joints are not compact; The brick wall of the foundation of the doorway or the lower part of the doorway opening is built too high, resulting in a cushion.

Uneven thickness or too thin, causing cracks in the ground.

For the backfill in the ground floor of the first floor, it should be filled and compacted in layers, and shall not contain sundries and larger frozen blocks, and the backfill in the winter construction should take insulation measures. Large-area concrete cushions such as foyers, halls, and waiting rooms should be poured in blocks, or appropriate reinforcement measures should be taken to weaken the surface cracks caused by ground settlement and cushion concrete shrinkage.

Terrazzo maintenance tips

Terrazzo curing is to clean the dirt on the surface of the stone and apply a layer of wax. This method can play a certain role in protecting the new terrazzo surface and delaying the rate of natural weathering and abrasion.

The reason why cleaning and waxing is not a real stone ground treatment is that there is no real technical key to terrazzo treatment. The reason why terrazzo is as bright as a mirror and crystal clear is mainly because the surface of terrazzo has formed a glass film after machining, which not only has a mirror luster, but also can transparently show the inner structure of the stone, that is, the pattern that people observe, and the beautiful beauty is here.

The key to restoring the beauty of weathered and abrasive terrazzo is to re-form a vitreous film on the surface of the terrazzo. The technical principle of the terrazzo floor grinding and polishing machine is: the weathered and abrasive aging layer on the surface of the terrazzo is removed to reveal the fresh layer, and then the extremely complex effect on the surface of the terrazzo is formed by special mechanical methods to form a new vitreous film, so as to restore the natural and beautiful decorative effect of the terrazzo.

First, the cause analysis.

Due to the thick floor area, the fine stone concrete cushion shrinks, and the deformation is concentrated. Due to the friction occlusion between the terrazzo surface layer, the cement mortar leveling layer, the fine stone concrete cushion, and the shrinkage of the cushion, the terrazzo surface layer is also deformed, and when the shrinkage stress of the cushion is greater than the tensile strength of the terrazzo, the terrazzo surface layer produces cracks directly above the place where the cushion stress is concentrated.

Second, the treatment method.

The terrazzo surface layer in the crack division lattice is all chiseled. On the cushion, the original fine stone concrete cushion is cut out of expansion joints and linoleum caulking with a cutting machine. The surface of the original thick fine stone concrete cushion is chiseled, and the surface is cleaned.

Laying of steel wire mesh. Long cement nails are used to fix the steel wire mesh to the concrete base. The surface layer of watering terrazzo, the surface of the new watering terrazzo is higher than the surface of the original terrazzo and then ground to the level of the original terrazzo surface.

The above is the best way to do it. If the crack is not long and you don't want to make a big move, then use epoxy resin glue to fill the crack to repair it. In this way, the traces of cracks cannot be eliminated.

The terrazzo itself will not crack, 90% of the reason for cracking is the cracking of the foundation, and then the terrazzo is cracked, for example, if you stick to the floor tiles, it will also crack, and if it does not crack, it will be hollow, and even warped directly.

It seems that now those who sit in the office can be adopted, and you are so strong, landlord.

In recent years, more and more terrazzo has been used in rural self-built houses, but many users have found that the floor has been cracking after using terrazzo. You will regret it very much and feel that you should use floor tiles for decoration. The terrazzo cracks because the terrazzo is too thick.

When doing something, you can do three centimeters, if you do it, it will not only be too costly, but also lead to cracking. Before the water mill, the ground will be used as a foundation cushion, which is often referred to as a layer of cement. <>

terrazzo flooringThis layer of cement is very critical, whether this layer of cement is firm is related to the overall effect of the final appearance of the water mill, and whether the terrazzo will crack is also an important relationship with this layer of cement. In the self-built houses in the countryside, there are a lot of backfills in the house, and most people will use wood or axes to beat them, not with machinery to tamp them, even if they are tamped, they are only rammed to the surface, and the underlying foundation is not in place. After a long time, the foundation will sink and the terrazzo floor will crack.

In order to avoid this phenomenon of cracking all the time, it is necessary to put steel bars at the ground beam when making terrazzo, so as to prevent the cracking of the terrazzo floor, and the steel bars also play a fixed role in the cement board. House decoration is a big thing, and you should do more homework when decorating to avoid possible problems in time. Now terrazzo is no longer popular, and very few families will choose when it is, because when it has more disadvantages and is not very practical.

What is the reason for this? When you are ready to decorate, you should consult a professional and set up drawings for yourself. When choosing the materials for decoration, we should also choose the best materials, so that the quality will be the best.

Don't be lazy when decorating, and leave everything to the decoration company to deal with, so that it is particularly troublesome to rectify after there is a problem. When decorating, you can go to the site to check more, and if there is anything inappropriate, you can change it in time.

It may be because it has been too long and has been exposed to the wind and sun, so it cracks, or it may be that the quality of the terrazzo floor is not very good, and it may be that it is not firmly pasted when the floor is pasted, so it will crack.

Because the floor is damp and expands, the floor surface is cracked, which is generally caused by improper use by customers.

It may be because your terrazzo floor is relatively thin, which is why it will crack all the time.

There are two types of patching methods, which are as follows:

1. If the damage to the terrazzo floor is not serious and the area is relatively small, you can use marble glue to fill and repair, or you can use other glue to polish and polish after filling, and then wax for maintenance.

2. When the terrazzo floor damage area is large and serious, the concrete can be poured again, and the solid terrazzo is used to harden the floor, and this method deals with the terrazzo ground damage and cracks, which is effective, however, the cost is relatively large, but there is no need to wax and maintain it in the later stage, and the longer it is used, the better and brighter the gloss, which saves a lot of maintenance costs and is wear-resistant.

The terrazzo floor is damaged because its strength is not enough, sharp objects will leave scratches when they pass by, and under the action of gravity, it will cause more and more damage to the terrazzo floor, and finally cause the occurrence of terrazzo floor damage. If the damage is not very serious, you can use marble glue to fill and repair, you can also use other glue, if the damaged area is larger, you can consider remaking the terrazzo floor, because the larger area of the damage will be repaired at a higher cost, so it is not cost-effective.

Where did the upstairs copy it from! If you don't understand, don't talk nonsense. If the terrazzo floor is broken, it is recommended not to use cement or terrazzo to repair it.

Such patches will quickly break down again. The suggested methods are: 1. Repair with FRP:

First, cut the broken ground into blocks, smash the base layer and clean it up, fill it with FRP quartz sand twice, and scrape the surface layer with pure FRP. 2. Repair with marble: after cutting and smashing the damaged place, paste 2cm thick marble with cement, and after drying, the interface between marble and terrazzo is filled with marble glue.

It can be repaired with putty, and a little floor wax is applied after the repair.

Where's the right answer? Hehe.

There are two types of patching methods, which are as follows:

1. If the damage to the terrazzo surface is not serious, and the area is relatively small, you can use marble glue to fill and repair, or you can use other glue to dig and polish after filling, and then wax for maintenance.

2. When the terrazzo floor damage area is large and serious, the concrete can be poured again, and the solid terrazzo is used to harden the floor, and this method deals with the terrazzo ground damage and cracks, which is effective, however, the cost is relatively large, but there is no need to wax and maintain it in the later stage, and the longer it is used, the better and brighter the gloss, which saves a lot of maintenance costs and is wear-resistant.

1. If the gap in the terrazzo ground is not very large and the damage is not very serious, you can use marble glue to fill it, or you can use other glues to polish it with sandpaper after filling, and finally wax and cure. 2. If the terrazzo gap is relatively large, which has seriously affected the use, then it is necessary to re-pour the concrete, and the solid terrazzo can be used to harden the floor to avoid waxing and curing in the later stage. Related knowledge popularization:

1. The terrazzo will be weathered and abrased after long-term use, and the more convenient way is to clean the dirt on the surface of the terrazzo into the roller bridge line and carry out waxing maintenance, which can play a certain role in protecting the terrazzo, delaying its service life and reducing the speed of weathering and abrasion. 2. Generally, if there are cracks in the ground of the large vertical and fierce terrazzo ground, it may be caused by the backfilling and coating of the ground, and the brick wall at the door is too high, resulting in the uneven thickness of the cushion will also cause cracks in the wall. 3. When laying terrazzo, it is necessary to carefully treat the surface of the base layer to ensure that the surface is smooth and has sufficient strength.

4. During construction, it is necessary to pay attention to the selection of a decoration company with professional qualifications, so that the quality of decoration is relatively easy to be guaranteed, and full communication should be carried out before construction, so as to avoid rework as much as possible.

The causes of terrazzo cracking can be as follows:

1.Improper construction: During terrazzo construction, if the ratio of cement mortar is incorrect or the excavation operation is not carried out according to the specifications during the construction process, it will lead to the cracking of terrazzo.

2.Ambient temperature too high or too low: In high or low temperatures, terrazzo floors may crack due to temperature changes.

3.Unstable foundation: If the foundation of terrazzo ground is unstable, it can lead to cracking of the ground.

If there are cracks in the terrazzo floor, they can be repaired by:

1.Clean the cracks: Use a brush or vacuum cleaner to clean the dust and debris from the cracks first.

2.Filling cracks: Cracks can be filled with cement mortar or special terrazzo caulk.

3.Grinding and polishing: After the caulk is dry, it needs to be sanded and polished with a grinder to make the caulk flush with the original ground surface.

If the terrazzo has cracked, it needs to be repaired more strictly. The specific method needs to be determined according to the specific situation of the crack, and it is recommended to ask a professional terrazzo maintenance company to deal with it.

Terrazzo construction site.