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With the development of society and the improvement of economic conditions, more and more people in rural areas have begun to build houses, and when building houses, they will find that workers sometimes add laundry detergent to cement.
Why is that? Is it good for rural housing construction?
Generally, adding a small amount of laundry detergent to the cement can play a role in fermentation, and the cement can become viscous after use, and the workers can make the surface smooth when painting the wall, and the painting will save effort, and the construction is more convenient. If the tile is laid, it can ensure the perfection of the tile laying and increase the adhesion between the cement and the tile.
Although this will save a lot of things, however, this practice is not entirely good, cement mixed with laundry detergent will make the cement more alkaline, make cement products more easy to weather, shorten the life of cement. Moreover, adding laundry detergent to cement is actually cutting corners, making the quality of cement continue to decline and affecting the quality of the house.
Laundry detergent is generally alkaline, that is to say, if laundry detergent is added to the cement, the stucco layer is alkaline when painting, and the wall stucco generally requires the use of neutral cement, if it is alkaline cement, the weather is humid, the wall will be alkaline, and the laundry detergent will speed up the hardening of cement when it encounters water, and it will increase the void of the cement mixture.
If the wall is slightly cracked and cracked, it can be remedied, brush a layer of super glue, and then brush a layer of cement without washing powder; If the condition is more severe, it will need to be repainted.
Rural construction, from the purchase of raw materials to the use of mixers to produce concrete, and finally to the initial completion of the house, it takes a lot of manpower, material and financial resources, so as not to have problems when painting the walls at the end. Now it is stipulated in the cement that the mortar king cannot be added.
The effect of adding laundry detergent is similar to that of Mortar King, so when building a house, it is not okay to see workers adding laundry detergent, which will have a corrosive effect on the steel bar, which will affect the quality of the house.
Building a house is to improve the quality of life of oneself better, if the house built is not satisfactory, it is also uncomfortable to live in, and it will be more troublesome to repair later.
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Why should I add laundry detergent? After adding laundry detergent to concrete, it can increase the consistency and viscosity of cement, and also improve the frost resistance of concrete, because laundry detergent is a surfactant, which can produce a lot of bubbles, and can increase the air content of concrete when added to concrete, so it has an anti-freezing effect, but because the bubbles brought into the concrete by washing powder are very large, the strength loss of concrete is also very large, and the service life is shortened. At the same time, the alkalinity increases, and the rainy weather will cause alkali, causing the wall to crack and fall off.
Therefore, the concrete entraining agent produced by professional manufacturers should be added, and the dosage provided by the manufacturer should be added, so as to not only resist frost, but also ensure the strength of concrete.
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Absolutely not! Laundry detergent alkaline substance! Concrete is acidic, which will play a neutralizing role and reduce the hardness of concrete! Or lapse!
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No, concrete and cement are used to repair houses.
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Summary. 100 kg of mud and 10 kg of laundry detergent. Laundry detergent is added to the concrete to act as a mortar micro-finishing agent, which can make the wall surface more flat.
However, it should be reminded that before mixing laundry detergent, you need to mix the laundry detergent with water and dissolve. And most importantly, laundry detergent has an impact on the pH value of the mortar and will affect the strength of the cement, so when the cement and laundry detergent are mixed together, we must pay attention to controlling the proportion of the two.
100 kg of mud plus 10 kg of laundry powder. The laundry powder is added to the mud to act as a micro-finishing agent similar to mortar, which can make the wall more smooth. However, it should be reminded that before mixing laundry detergent, you need to mix the laundry detergent with water and dissolve.
And most importantly, laundry detergent has an impact on the pH value of the mortar and will affect the strength of the cement, so when the cement and laundry detergent are mixed together, we must pay attention to controlling the proportion of the two.
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No. Here's why:
1. Adding laundry detergent will increase the alkalinity of the missing layer of the stucco pie, and the wall will be frosty in humid weather;
2. When the laundry detergent encounters water, it will accelerate the hardening of the cement, which will cause the wall to crack slightly, hollow or have gaps;
3. As soon as the alkali content of Qiduan cement increases, it will produce dust and corrosiveness to the steel bar. Concrete can swell, crack or even fall off, becoming a serious safety hazard.
Concrete, referred to as "concrete": refers to the general term of engineering composite materials that are cemented into a whole by cementitious materials. The word concrete usually refers to the use of cement as cementitious material, sand and stone as aggregates; Cement concrete obtained by mixing with water (can contain admixtures and admixtures) in a certain proportion is also called.
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Summary. No, there are alkaline substances!. The feeding sequence of concrete mixing is stone-cement-sand-water.
The sequence of raw materials being put into the mixing drum should be comprehensively considered to ensure the quality of concrete overturning, improve the strength of concrete, reduce mechanical wear, reduce cement flying, improve productivity and other factors. According to the different raw material feeding, the kneeling soil feeding method can be divided into a feeding method, a secondary feeding method.
1) One-time feeding method. It is to mix the raw materials (cement, sand, stone, mineral admixture) together in the mixer at the same time.
In order to reduce the phenomenon of cement flying and sticking to the wall, the self-falling mixer adopts the first pouring of sand (or stones), then the cement, and then the pouring of stones (or sand).The cement is sandwiched between the sand and gravel, and finally mixed with water.
2) The secondary feeding method is divided into ready-mixed cement sand paddle method, cement-coated sand feeding method and ready-mixed cement mortar method. First, the cement, fine aggregate and water are added to the mixing drum for full mixing to become a uniform cement mortar, and then the coarse aggregate is added to stir into a uniform concrete. This method can increase the strength of concrete by 15% compared with the one-time feeding method
If the concrete strength is the same, the cement can be saved by 15%-20%.
Cement sand coating feeding method. First, add a certain amount of water, adjust the sand surface to a certain specified value, pour the stones, stir evenly with the green sand, and then pour all the cement and mix with the wet sand and stone.
Can water after washing clothes mix concrete.
No, there are alkaline substances!. The feeding sequence of concrete mixing is stone-cement-sand-water. The sequence of raw materials in the mixing drum should be comprehensively considered to ensure the quality of concrete, improve the strength of concrete, reduce mechanical wear and tear, reduce cement flying, improve productivity and other factors.
According to the different raw material feeding, the kneeling soil feeding method can be divided into a feeding method, a secondary feeding method. 1) One-time feeding method. It is to twist the raw materials (cement, sand, stone, mineral admixture) together and stir them into the tanzu mixer at the same time.
In order to reduce the phenomenon of cement flying and sticking to the wall, the self-falling mixer adopts the first pouring of sand (or stones), then the cement, and then the pouring of stones (or sand).The cement imitation resistance is sandwiched between the sand and gravel, and finally mixed with water. 2) The secondary feeding method is divided into ready-mixed cement sand paddle method, cement-coated sand feeding method and ready-mixed cement mortar method.
First, the cement, fine aggregate and water are added to the mixing drum for full mixing to become a uniform cement mortar, and then the coarse aggregate is added to stir into a uniform concrete. This method can increase the strength of concrete by 15% compared with the one-time feeding methodIf the strength of the concrete is the same, the cement can be saved by 15%-20% Cement sand coating feeding method.
First, add a certain amount of water, adjust the sand surface to a certain specified value, pour the stones, stir evenly with the green sand, and then pour all the cement and mix with the wet sand and stone.
Hope it helps, dear
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It can make the walls particularly smooth, so that the walls will look particularly beautiful. The main reason is that the laundry detergent is relatively slippery, and after the cement is fully mixed in the laundry detergent, the cement will be much more convenient when applied, and the surface will look smoother.
If the cement is added to the laundry detergent, it is also very particular, the laundry detergent must be melted first, and the cement can not be poured directly into the cement, the cement and the laundry detergent should have a certain proportion, not too much or too little, too much is easy to make the wall dust, too little can not work. Laundry detergent it is an alkaline substance, if you put too much, then it will have a chemical reaction with cement, it will achieve the opposite effect, the aesthetics of the wall will also be affected, decoration, pay attention to please have a professional and responsible master, so that he can grasp the proportion, not afraid of too easy to have problems, although they can also do it, but if the proportion is not good, it is very bad.
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It plays a solid role in promoting the solidification of cement.
Laundry detergent contains surfactants such as sodium dodecylbenzene sulfonate, which can reduce the surface tension between cement particles, make cement particles easier to disperse and wet, increase the contact area of cement, and facilitate closer bonding between cement particles, thereby improving the coagulation and hardening speed and strength of cement.
<>In addition, laundry detergent also contains alkaline substances, which can react with calcium hydroxide in cement to generate a certain amount of heat and accelerate the solidification and hardening of cement. However, it should be noted that if too much laundry detergent is added, the moisture content in the cement will increase, resulting in a decrease in the strength of the cement. Therefore, when adding laundry detergent to cement, it is necessary to strictly control the dosage.
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Why do you add laundry detergent to cement and what role does laundry detergent play?
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Hello! If there are concrete stains on your clothes, you can use the following cleaning methods:
1. When the clothes are dry, apply the original liquid of the special laundry detergent for hand washing to the stains, completely cover the stains, let it stand for 5 minutes (you can scrub gently), and add laundry detergent for regular washing;
2. If the stain cannot be removed after the above methods, then.
1) Pure white cotton, linen, polyester clothing: Add 1 bottle cap (40g) of white clothes (600g specification) to each half basin of water (about 2 liters), stir well, soak in the clothes for 30min, and rinse clean.
If the stains are not removed after 2 hours, take out the clothes, add white clothes to the basin (add 1 bottle cap per half basin of water), stir well, put in the clothes and continue soaking, and the cumulative soaking time does not exceed 6 hours.
2) White clothes of colored or other materials: put the clothes into the basin, the stain part is attached to the bottom of the basin, measure 1 4 caps (10 grams) of colored clothes and 1 4 caps (10 grams) of the collar with the color stain net (600g specification) of colored clothes, pour them on the stains, cover the stains with other non-stained parts of the clothes, prevent air drying, let stand for 2 hours, and rinse clean. If the stain remains unremoved after 2 hours, it can be left on for an extended period of time overnight.
Precautions: 1. White clothes are suitable for white cotton, linen, polyester, polyester cotton, cotton and linen fabrics, do not use colored clothes (including white background stripes, white background checkered, white background printing), do not use silk wool spandex nylon and other non-chlorine bleaching clothes, do not directly use the original solution.
2. Color stains are not suitable for fading clothes and dry cleaning, avoid touching metal buttons, zippers, metal ornaments, etc. on the clothes when using, and avoid direct sunlight.
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As far as I know, it's best to soak it in warm water first, and it will be easy to wash it off after washing it with laundry detergent.
Clothes should be protected, concrete is still easy to hurt.
3. If the concrete has hardened, then you can only use a shovel to shovel it off, or use a hammer to knock it, and the other way is to use grass pickling, but others should not agree to you use oxalic acid, which will cause damage to their walls, so pay more attention to it.
I personally have a similar experience, I recommend using a small shovel to shovel carefully, so it is still very fast, acid products are still quite harmful to the wall, you can negotiate and deal with it
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Because laundry detergent is a relatively lubricating thing, it is used in cement, which can make the construction process of cement more convenient, and can also make the surface smoother, if this kind of thing is not added in cement, the effect will appear very rough, but directly add laundry detergent in cement, it does not mean that it is directly mixed in, it is to be added to dissolve when modulating the proportion of cement, so that the effect will be better, but cement does not need to add too much laundry detergent, otherwise there will be a reaction.
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