Can old concrete be used as sand if it is broken?

The old concrete can be used as sand, and the sand made from the crushed can be used in commercial buildings, and the construction waste is recycled stone, which can be used and reduce the generation of garbage.

I think it can be used as sand, which can be regarded as reuse, and it is also better to protect the environment.

It can be used as sand because it can be used to make aggregate after breaking concrete.

Summary. Cement and sand solidify, something can break it down.

Pro, cement and sand solidify to decompose it can be decomposed with sulfuric acid, nitric acid, hydrochloric acid, can be decomposed.

The main component of cement is calcium carbonate, and the main component of sand is silica.

Cement and sand solidify, something can break it down.

Cement and sand solidify what can decompose the cavity of the cavity of the finch pro, cement and sand solidify to decompose it can be used sulfuric acid, nitric acid, hydrochloric acid, can decompose the hood. The main component of cement is calcium carbonate, and the main component of sand is silica.

What is the special cement dissolving agent for silver dissolving when the cement is solidified. Mix the solvent with water in a ratio of 1 to 2. After that, pour the blended dissolving agent on the place where the cement solidifies, and the cement can be dissolved after about ten days.

Cement has strong connectivity after mixing with water, so it is widely used in civil engineering construction, water conservancy projects, etc.

My sewer was solidified with cement sand, looking for a way.

Pro, the sewer is clogged with cement and sand Dredging method 1, we can use a stick to dig and rinse with water. If it still doesn't work, then the only way to do it is to find a professional pipe dredging company to dredge it. 2. We find professional pipeline dredging personnel to solve the problem of cement being blocked with pipeline dredging draft cut-off machine.

The pipe dredging machine can break up about five centimeters of mortar. 3. You can make a hole in the pipeline, chisel the place blocked by cement after the water comes out, and then break the cement block. It takes a professional to do it.

4. Soil method: pour with boiling water, and then use cold water to excite and repeat several times. Due to the thermal expansion and contraction of the PVC pipe, the cement block and the pipe can be separated, and the next step depends on the size of the cement block.

Buy a bottle of toilet cleaner and pour it into the sewer little by little, dig slowly with a small spoon that is not metal, and repeat the operation so slowly, and the residents downstairs discuss whether they can change the elbow. Pay attention to find a piece of PVC to see if it will corrode, and confirm it before proceeding. 5. If you are afraid that the cement slag will fall into the depths, do not completely penetrate it first, hollow it out layer by layer from top to bottom, pay attention not to hurt the pipe, and wash away the little bit of fine garbage left after opening it with water.

Pro, there is a new type of soaking type dissolving sewer and industrial cement dredging products on the market, that is, cement dredging dissolving agent. All we need to do is pour it over the cement block in the drain, and after a long soaking of the block, it will dissolve itself and the finger will be dissolved.

Or use 35% hydrochloric acid and add a small amount of dough to it, which can act as a corrosion inhibitor and promote the cleaning of sand and cement.

Break the cement with a pipeline dredging machine, and the pipe dredging machine with a relatively high power can hit a water block of about 5 cm in front of Xiangyin. It should be noted in the use of this method that PVC pipes, floor sewers, and old cast iron pipes are not suitable for this, which will pierce the pipes.

Hope it helps you ha<>

Old concrete can be used as sand when broken, but because the material has some differences, it must be processed to make the sand use.

When Tong calmly can't. Because the sand used in construction will have high requirements, particle size, fineness modulus, and fine aggregate special tung dissipation, these requirements of old concrete crushing can not be met at all.

No, the properties are completely different, the characteristics of the materials are different, which will affect the hardness of the building and the stability of the building.

Summary. Hello, the crushed concrete can be used as stone, after the old houses, bridges and other buildings are demolished, in addition to concrete, it will contain part of the steel bars, decoration garbage and other impurities, through the professional concrete crushing machine to process, according to the demand, adjust the specifications of the discharging stone, can be used again in road construction and many other fields.

Uses: After the concrete is crushed, it can realize resource utilization, and the finished product can be used as road cushion, building aggregate, for brick making, etc.

After the old houses, bridges and other buildings are demolished, in addition to concrete, Libi will hand rush to contain some steel bars, decoration garbage and other impurities, through a professional concrete crushing machine to process, according to the demand, adjust the specifications of the discharging stone, can be used again in road construction and many other fields. Uses: After the concrete is crushed, it can realize resource utilization, and the finished product can be used as road cushion, building aggregate, for brick making, etc.

Summary. Jianghu Baixiao will answer for you: Mix the cement, sand and gravel well, do not release water, if you can ensure that the sand is not wet, it can be used after 24 hours, but the effect may be reduced, it is not recommended to leave it for so long.

Mix the cement, sand and gravel well, without water, and can you still use it after 24 hours?

Jianghu Baixiao will answer for you: Mix the cement, sand and gravel well, do not release water, if you can ensure that the sand is not wet, you can use it after 14 hours of doing it, but the effect may be discounted, and it is not recommended to put it for so long.

The cement and sand are entangled, and the sand is a little damp and can rest time.

How long. If the sand is a little damp, try not to exceed 6 hours, cement and sand stupid ballast mix together, as long as the sand and cement are dry and not watered, as long as they are not placed in a place with a careful time, put them in a ventilated place. The sand will not fail for a long time, and the cement will fail after a long time, and the travel void will not be solidified.

The sand is very humid and auspicious, try not to exceed 5 hours, mainly cement, cement banquet and after mixing, its initial setting period according to the season, the initial setting period is generally within 3 hours, and the cement that reaches the initial setting period, whether in terms of stability or usability, is not suitable for construction and use of the hall.

Summary. If the land is transferred, it is barely acceptable, and it is better not to easily cause fear of stocks.

If the cement sand is left for 20 days, can it still be used as coarse sand for cast-in-place cement slabs?

Thank you for patronizing the Gold Medal Answerer, I will answer this question for you.

No, it is difficult to do dense in this way, which affects the safety of the structure.

Is it okay to use it as sand to pave floor tiles?

If the land is transferred, it is barely acceptable, and it is better not to easily cause fear of stocks.

It is easy to cause hollowing.

To put it bluntly, your cement mixed with sand is already a waste product.

It is still loose and unclumped. Isn't it good to use it as sand and then mix it with cement in a normal proportion to pave the roof and floor tiles?

Yes, not great. It is easy to cause later holdings. Hollow drums. Oh.

Thank you, dear. Dear, you're welcome, your praise is my biggest motivation, I wish you a happy life!

Ok thanks!

Summary. That is, the hammer crushing method is used to break or crack the cement concrete panel, and the roller is used to stabilize it to form a smooth and stable base structure. It should be noted that it is essential to avoid pressing the gravel particles into the soil foundation.

In this way, the gravel layer forms a hard granular base.

When I used it, I didn't find that the cement failed, but now I broke it and added cement from the new one, can it be used?

Pro, scrapped cement sand and new cement can not be structured.

When I used it, I didn't find that the cement failed, and now I broke it and added cement from the new one that can't be used.

Got it. If it has already solidified, even if cement is added, it will not have any effect, and it will also affect the quality of the concrete.

I thought the cement would work.

That is, the hammer crushing method is used to break or crack the closed cement concrete panel, and the road roller is used to stabilize it to form a smooth and stable base chaotic structure. It should be noted that it is essential to avoid pressing the gravel particles into the soil foundation. In this way, the gravel layer forms a hard base layer of granular material.

The added cement cannot be used.

I thought that mud could be used, so I used it as mud and mixed it up.

Dear, no.

The mixed mortar should not be mixed with sand, otherwise the strength of the original mortar will be reduced.

Mixed mortar is generally made of cement, lime plaster, and sand, and is generally used for masonry above the ground. Due to the addition of lime plaster, the workability of the mortar is improved, and the operation is more convenient, which is conducive to the improvement of masonry compactness and ergonomics.

In the construction process, the mortar king is mostly added to the cement mortar instead of white ash, so the mixed mortar can also be called the cement mortar with the mortar king. However, with the increase of engineering practical experience, it is found in the actual work that although the cost is saved by the mixed mortar of the mortar king, the masonry strength is insufficient, especially for some brick-concrete structures, which affects the life safety of the masses. All localities have issued relevant local requirements, and the use of them in general construction is strictly prohibited.

However, the advantages of Mortar King are obvious, so many material workers are also tirelessly committed to this research. Special effect mortar king, can be 1 to 1000 instead of lime. One ton of this product can replace 1,000 tons of lime.

Only 50 grams of this product (accounting for 1/1000th of the amount of cement) need to be put into each bag of cement mixed mortar. It can save a lot of construction funds for the construction unit, and this product is mainly used for the construction of masonry and plastering projects in construction projects. The product has the ability to improve the workability of the mortar and improve the strength.

Impermeable. Cancel the white ash or stone buried plaster, change the characteristics of reducing construction costs, and improving the working environment. And it is an emerging green building material.

Therefore, it can be seen that the mortar king will gradually replace the mixed mortar mixed with white ash because of its green environmental protection.

You should be talking about the purchase of commodity mortar! Can't mix sand!

1. After mixing sand, the strength of the original mortar will definitely be reduced, and the ridge insight is a typical behavior of cutting corners! If the supervisor or the owner finds out, he will definitely be punished.

2. Now as a project cost control, the biggest piece should be to strive to improve work efficiency, and labor costs have now become a big head.

3. After adding some sand in the mortar, the amount of mortar can not be reduced, but only the difference after reducing the mortar marking.

Isn't the grade of the sand mixed lower?