How to construct self leveling cement? How to construct cement self leveling

The construction method of cement self-leveling is as follows:

1.For the ground detection of the base layer, the flatness of the ground is detected with a 2-meter ruler, and the scriber evaluates the strength and absorption of the surface of the base layer and whether there are cracks or holes in the base layer;

2.Polishing the base layer, observe whether there is sand on the ground, if necessary, remove the material with insufficient adhesion to the ground, polish the ground, and vacuum with a vacuum cleaner;

3.Before construction, the ground needs to be treated with moisture-proof, and it is necessary to use a roller to carry out two times of interface agent rolling, and before the second roll, it is necessary to throw quartz sand, polish and vacuum after curing, and the interval between the two rolls is between 12 and 48 hours to ensure the moisture-proof effect;

4.Then add water to the cement self-leveling according to the ratio and stir evenly, pour it on the ground, and paint it evenly with a scraper, with a thickness of 4-6 mm; 5.Defoaming treatment is required during construction to prevent cement self-leveling shelling and cracking;

6.Finally, a waterborne polyurethane overlay is rolled over for abrasion and impermeation resistance.

Extended Information] What is a self-leveling ground.

Self-leveling ground is made of material after adding water, can be turned into a free-flowing slurry, according to the uneven terrain, can quickly obtain a high flatness of the floor from the surface on the ground. The adhesive materials used in cement self-leveling ground generally use ordinary silica cement, high-alumina cement, Portland cement, etc.

What is self-leveling cement.

It is a special cement that can make the slurry, mortar or concrete reach a predetermined strength and compactness without vibration at a low water-cement ratio. Self-leveling cement is a high-tech green product with high technology content and complex technical links. It is a dry-blend powdered material composed of a variety of active ingredients and can be used by mixing water on site.

With a slight scraper, a high flat base surface can be obtained. The hardening speed is fast, and you can walk on it in 4 or 8 hours, or carry out follow-up projects (such as laying wooden floors, diamond boards, etc.), and the construction is fast and simple that can not be compared with traditional manual leveling. Safety, pollution-free, beautiful, fast construction and putting into use are the characteristics of self-leveling cement.

Self-leveling cement has a wide range of uses, which can be used in industrial plants, workshops, warehousing, commercial stores, exhibition halls, gymnasiums, hospitals, various open spaces, offices, etc., and is also used in homes, villas, warm small spaces, etc. It can be used as a finishing surface layer or as a wear-resistant base layer.

Cement self-leveling ground construction practices:

1. Plugging work.

The plugging work is considered to be the preparatory work for construction, and the parts that may leak such as the door and the drainage outlet should be sealed before the construction of the cement self-leveling ground.

2. Grassroots treatment.

The base treatment includes two aspects, one is that there can be no debris in the construction area, and the other refers to the convex and depression on the ground in the construction area, and the protrusion is removed and the depression is filled, and the overall requirement is smooth and free of debris.

3. Environment. After the base treatment is completed, the doors and windows should be closed to avoid the influence of wind and dust, in addition, if there is a place exposed to direct sunlight, it can be properly shaded, otherwise it will affect the quality of the surface layer of cement self-leveling mortar.

4. Apply interface agent.

The function of the interface agent is to cover the back, generally brush twice, and then apply the second time after the first time is dry, do not miss it in the painting process, and try to be as uniform as possible.

5. Stir. After the interface agent is dried, the cement self-leveling powder is stirred with water, and the proportion should be carried out in strict accordance with the manufacturer's instructions or the guidance of technical personnel.

6. Pouring. After the cement self-leveling powder is stirred into a slurry with water, you can start pouring, the fluidity of the cement self-leveling mortar is very large, after all, it is also limited, so in the pouring process, you can use auxiliary tools such as scraper, and at the same time, you also need to use the exhaust drum to roll on the cement self-leveling surface, play the role of exhaust, and avoid the generation of small pores on the cement self-leveling surface.

7. Maintenance. After the pouring is completed, the cement self-leveling needs to be cured for a certain period, and the maintenance is carried out according to the product instructions of each manufacturer.

The specific operation of self-leveling cement construction is as follows:

Tools: cement self-leveling, interface agent, tooth harrow, spikes, defoaming roller, roller brush, mixer.

1. Check whether the ground is dry and cracked, and it is best to ensure the flatness, wetness and hardness of the ground. During cement self-leveling construction, construction joints need to be set according to the width of the work area. Generally speaking, the construction width is not more than 6 8 meters, and the construction surface can be separated by foam rubber strips, and the rubber strips should be placed on the line before separation.

2. Prepare a large barrel, which should be mixed and stirred in strict accordance with the ratio of self-leveling lime and water. Stirring should be carried out in two parts, the first stirring takes about 3 5 minutes, then pause for 2 minutes to let the cement react, then stir for about 3 minutes, and the second time to stir thoroughly, there can be no lumps or dry powder. The final effect should be fluid.

3. After the self-leveling cement has been left for half an hour, it can be poured on the ground, and the self-leveling target can be opened with a toothed target, and then the area of different sizes can be targeted according to the required thickness. Wait until it is naturally leveled, and roll it vertically and horizontally with toothed rollers.

4. The last step is to wait, generally wait for the last day and night, the specific time is uncertain, and wait until the self-leveling cement is completely dry.

Self-leveling cement construction steps:

First, the grassroots treatment.

Clean up the debris and dust on the ground, repair holes and cracks, and knock out the hollow drum to repair it again.

2. Brush the interface agent on the base layer.

Carry out the application of the primer interface agent, and apply the interface agent material to the base surface. Generally speaking, it is necessary to scrape two layers, and then carry out self-leveling construction after thorough drying.

3. Self-leveling cement mixing.

Prepare a clean mixing bucket, put an appropriate amount of water in it, then slowly add the self-leveling material, stir with an electric mixer while putting it, and continue to stir for about 5 minutes until the slurry reaches uniformity and has good flow properties.

Fourth, the surface layer is scraped.

Wait for the primer to be semi-dry, pour the slurry, and use a scraper or scraper to push the slurry to a uniform state. The mortar is poured on the base surface and flattened using a tool.

5. Defoam the surface.

Air will be brought in during the stirring process, so before the initial setting of self-leveling, it is necessary to wear spiked shoes and walk into the self-leveling ground, and quickly roll on the poured self-leveling ground with an aeration roller to discharge the air brought in during stirring, so as to avoid bubbles, hemp noodles and height differences between strip and strip interfaces.

6. Surface grinding and polishing.

If it is 5 steps above the cushion layer, if it is a surface layer, it also needs to be ground and polished, which is generally carried out after 7 days of self-leveling curing. A grinder is used to polish off the self-leveling surface layer to facilitate the penetration of the curing agent.

Check the moisture, flatness and hardness of the floor to see if it is dry, flat and free of cracks. Clean all kinds of dirt on the ground, polish and absorb dust, clean the expansion joint, inject styrofoam into the expansion joint, the surface of the glue is about 20 lower than the surface of the expansion joint, and then apply the interface agent, and after drying, smooth and plug with stirred self-leveling mortar.

After the interface agent is applied, it is necessary to keep it ventilated so that it is completely dry, and after drying, self-leveling construction can be carried out. Self-leveling mortar stirring can use a mortar pump to stir, mortar pump must be used to keep in touch with the power supply, not to cut off the power halfway, resulting in greater damage. Prepare to weigh the appropriate amount of water in a clean mixing bucket.

Cement self-leveling is a high-tech content of high-tech and complex high-tech green products, in the use of self-leveling cement is to ensure the construction quality and decoration effect of the coiled floor is the most basic guarantee, due to its importance, must be in strict accordance with the construction process. Next, I will introduce to you how to construct cement self-leveling?

Observe whether there is sand on the ground, if necessary, use a grinder to polish the foundation ground, and then use a vacuum cleaner to suck it clean, use self-leveling cement to mix with water, stir for minutes, evenly paint, the thickness is generally 4-6 mm, and then carry out defoaming treatment to prevent shelling and cracking of self-leveling cement, it is recommended that the ground treatment agent be brushed twice.

Common types of cement self-leveling.

1. Ordinary cushion self-leveling: It is suitable for ground leveling before laying PVC flooring, plastic flooring, wooden flooring, carpet and other materials. Because the self-leveling strength and crack resistance of the cushion are ordinary, it cannot be used directly on the ground, but only used under other ground materials.

Cushion self-leveling is mostly used in hospitals, kindergartens and other occasions.

2. Self-leveling of high-strength surface layer: suitable for industrial ground, high strength, good wear resistance, can be used directly on the ground, mainly used in new or old project renovation projects, as well as fine leveling of industrial ground. The surface layer is self-leveling and delicate, cement gray, with a simple and natural decorative effect.

3. Self-leveling of color surface layer: In addition to the above-mentioned characteristics of self-leveling of high-strength surface layer, colorful color elements are added to meet people's requirements for more colors of surface self-leveling. The color surface layer is self-leveling, and there will be a slight color difference in color shade, and it is not possible to achieve the overall uniform color consistency.

Conclusion: The above content is about how to construct cement self-leveling? I hope it can help you. I believe that after the introduction of the content, you will have a good understanding of the common types of cement self-leveling? If you have more understanding, if you have a need in the future, you can also refer to it.

The construction method of <> cement self-leveling is as follows:1For the ground detection of the base layer, the flatness of the ground is detected with a 2-meter ruler, and the scriber evaluates the strength and absorption of the surface of the base layer and whether there are cracks or holes in the base layer; 2.

Polishing the base layer, observe whether there is sand on the ground, if necessary, remove the material with insufficient adhesion to the ground, polish the ground, and vacuum with a vacuum cleaner; 3.Before construction, the ground needs to be treated with moisture-proof, and it is necessary to use a roller to carry out two times of interface agent rolling, and before the second roll, it is necessary to throw quartz sand, polish and vacuum after curing, and the interval between the two rolls is between 12 and 48 hours to ensure the moisture-proof effect; 4.Then add water to the cement self-leveling according to the ratio and stir evenly, pour it on the ground, and paint it evenly with a scraper, with a thickness of 4-6 mm; 5.

Defoaming treatment is required during construction to prevent cement self-leveling shelling and cracking; 6.Finally, a waterborne polyurethane overlay is rolled over for abrasion and impermeation resistance.

First, how to construct self-leveling cement.

1. Clean the ground first, and then apply the interface agent, and the first time can be painted after the second time is dry, and the general time should wait until 2 to 4 hours. Note that the strength of the concrete must reach 15MPa. In addition, the concrete floor should not be loose or other debris.

If there are holes, use mortar to repair the messy shed.

2. After ensuring that it is completely dry, the next step of construction can be carried out, the self-leveling cement is added to clean water and stirred evenly, and then stirred into a slurry with a mixer. This slurry is poured directly onto the ground and is generally 4 to 6 mm thick.

3. Before the initial setting, the workers put on spikes, walk into the ground, and then use tools to squeeze out all the bubbles on the surface.

4. Finally, do a good job of cement self-leveling maintenance, and it will take about a day to lay other ground materials, and pedestrians can be placed on it.

Second, the precautions for self-leveling cement construction.

1. Before construction, the ground must be cleaned to ensure that the ground is dry, solid, dust-free, crack-free, oil-stained and other impurities. In addition, there should be no hollow drums on the ground, and the places where the drums are raised should be knocked off, the soft base should be reinforced first, and the potholes and cracks should be repaired first.

2. During construction, we must pay attention to the environment, such as the dry ground of the pomace, the temperature can not be lower than 10 degrees Celsius, and the humidity should be kept at 80% 90%. At the same time, there should be no strong wind indoors, so as to avoid too dryness. If it is a summer construction and the temperature is relatively high, you can choose to work at night.

3. Be sure to pay attention to the brush interface agent, because it is easy to freeze and crack at low temperatures, we must pay attention to the thermal insulation of the site, and it is best to choose tap water during construction. It must be constructed continuously, and after adding water, the use time is generally controlled within half an hour.

Abstract 1 Inspect the ground, check the strength of the construction materials, clean the ground, and repair it with mortar if there are holes;

2. Do a good job of sealing the ground, apply the interface agent twice, and the time interval between the first and second times is 2 to 4 hours;

3. Add the self-leveling cement to clean water and stir it into a slurry, pour it on the ground to form a certain thickness, and do a good job in the self-leveling maintenance of cement.

Hope it helps!

How to construct self-leveling cement correctly.

1. Inspect the ground, check the strength of the construction materials, clean the ground, and repair it with mortar if there are holes; 2. Do a good job of sealing the ground, apply the interface agent twice, and the time interval between the first and second times is 2 to 4 hours; 3. Add the self-leveling cement to clean water and stir it into a slurry, pour it on the ground to form a certain thickness, and do a good job in the self-leveling maintenance of cement. Hope it helps!

After the self-leveling is done, why will it leave the shares?