What will be the impact of high performance concrete in the actual construction without adding super

For today's high-performance concrete, superplasticizer is one of the many technical measures of Byco. It can reduce the water-glue ratio, increase the strength, have good workability, small slump loss, and obtain a uniform concrete mixture.

If the superplasticizer is not used, 1. If you want to ensure the strength of concrete, you need to increase the amount of cement, which not only has a high unit price, but also has a great impact on the durability of concrete. 2. In order to ensure the fluidity of concrete, it is necessary to increase the water consumption and make the water-glue ratio too large. Affects the strength and durability of concrete.

In some cases, the loss of slump is too fast. 3. Because there are generally retarding components in the current superplasticizer, the setting time will have a certain impact, but it can control the phenomenon of excessive collapse loss and reduce the phenomenon of cracks and other phenomena in the early stage of concrete due to excessive hydration heat.

High-performance concrete has three basic characteristics: high fluidity (good workability), excellent mechanical properties (such as strength, etc.), and strong durability.

First of all, there is no good fluidity without adding superplasticizer, and it is not easy to construct (the water-cement ratio of high-performance concrete is very low), which affects the strength and durability.

The function of the superplasticizer is to reduce the amount of water in the concrete, increase the workability of the concrete, and thus increase the later strength of the concrete. Improve the working properties of concrete. Depending on what kind of project is used, water reducer is generally required for large-scale projects.

Hunan Pioneer Building Materials is currently the largest superplasticizer manufacturer in Hunan Province.

See what type of water reducer you are.

Finish. Superplasticizers have many functions. It is divided into air-entraining superplasticizer (superplasticizer with air-entrainment), early-strength superplasticizer (superplasticizer with early-strength effect), retarding superplasticizer (superplasticizer with retarding), etc.

The function of superplasticizer: to disperse cement particles, improve workability, reduce water consumption, thereby improving the compactness and hardness of cement-based materials, and increasing their fluidity.

The superplasticizer will lead to the segregation and leakage of concrete, and the phenomenon of bottoming will appear, and there will be no cohesion. It will cause problems for transportation. In addition, due to the large number of retarding components, the coagulation time will be long, which will affect the construction.

The varieties of superplasticizers are different, and the dosage is different. There are ordinary superplasticizers and high-efficiency superplasticizers, generally one to two percent.

1. The superplasticizer is a kind of concrete admixture that can reduce the amount of water used for mixing under the condition of maintaining the slump of concrete. Most of them belong to anionic surfactants, including lignosulfonate, naphthalene sulfonate, formaldehyde polymer, etc.

2. After adding the concrete mixture, it has a dispersion effect on the cement particles, which can improve its workability, reduce the unit water consumption, and improve the fluidity of the concrete mixture; Or reduce the amount of cement per unit and save cement.

Summary. Hello, if the superplasticizer is mixed in the concrete too much, it may lead to the following consequences:1

Decrease in concrete strength: The excessive use of superplasticizers will lead to a decrease in the volume of cement slurry in the concrete, which will then reduce the strength of the concrete. 2.

Concrete shrinkage: The excessive use of superplasticizers will lead to a decrease in the volume of cement slurry in the concrete, which will lead to concrete shrinkage. 3.

Concrete cracking: The excessive use of superplasticizers can lead to a decrease in the volume of cement slurry in the concrete, leading to concrete cracking. 4.

Reduced durability of concrete: The excessive use of superplasticizers will lead to a decrease in the volume of cement slurry in concrete, which will reduce the durability of concrete.

Hello, if the superplasticizer is mixed in the concrete too much, it may lead to the following consequences:1Concrete strength decreases:

The excessive use of the head-reducing water agent will lead to a decrease in the volume of cement slurry in the concrete, which will then reduce the strength of the concrete. 2.Concrete shrinkage:

Excessive use of superplasticizers will lead to the reduction of the volume of cement slurry in the concrete, which will lead to the shrinkage of the concrete. 3.Concrete cracking:

Excessive use of superplasticizers can lead to a decrease in the volume of water dissipation slurry in the concrete, leading to cracking of the concrete. 4.Concrete durability decreases:

The excessive use of superplasticizers will lead to a decrease in the volume of cement slurry in the concrete, which will reduce the durability of the concrete.

Dear, I suggest that in concrete production, you should reasonably control the amount of superplasticizer according to the specific situation to ensure the quality and performance of concrete.

When pouring the ring beam, the mixed brigade resistant soil that has been prepared by the small worker accidentally poured all the alkaline water agent of about 3 catties into the prepared concrete, and this Changzhen chaos will not have any impact.

Pro, if Fu Ying is pouring the ring beam, this imitation worker accidentally pours all the 3 catties of alkaline water agent into the concrete soil that has been prepared, which will have a certain impact on the performance and quality of the concrete, but the specific impact depends on the type of alkaline water agent, the amount and the mix ratio of the concrete.

Dear, I suggest that you should know the construction party and the quality inspection department in time to test and evaluate the concrete to determine whether the quality and performance of the concrete meet the requirements. If the quality of the concrete is affected, measures need to be taken in a timely manner.

For the addition of polycarboxylate superplasticizer, it is generally mentioned that it must not be added in excess, otherwise the consequences will be very serious, because it is often used with concrete, so the impact on concrete is greater. What are the consequences of adding too much water reducer?

1. There are many kinds of polycarboxylic acid superplasticizers, and the components of various types of superplasticizers are different, the effects are different, and the consequences after excess will not be the same.

2. If it is a superplasticizer with only water reduction function, excessive amount will only cause excessive concrete slump, or segregation, water leakage, and compaction.

3. If the polycarboxylate superplasticizer with retarding gas entrainment is excessive, it will be excessively retarded and the gas content will be too high, causing the concrete to set too slowly and the gas content to be high, resulting in the reduction of concrete strength.

4. If the superplasticizer is added to the concrete, the slump will be too large and the stones will be segregated.

5. If the dosage of superplasticizer exceeds the regulations, the concrete will become brittle under normal circumstances.

Excessive addition of polycarboxylic acid superplasticizer will cause problems such as concrete compaction, although the superplasticizer can remove part of the moisture in the concrete, and the properties of the concrete can be appropriately changed, but once the excessive amount is added, the performance of the concrete will change greatly. Hunan Zhongyan Building Materials Technology Co., Ltd. is a fourth-level subsidiary of China National Building Materials Group, formerly known as China Cement-based Materials Research Center, and has a history of more than 50 years in the research of concrete admixture industry; It is an admixture manufacturer with a high degree of automation and large production capacity in Hunan, with stable and reliable products and excellent technical services; The water reducer developed and produced is suitable for many fields such as buildings, bridges, highways, railways, prefabricated components, segments and piles; Suitable for concrete of different strength grades; It is especially suitable for all kinds of concrete projects that require high slump retention performance, as well as concrete that requires long-distance transportation and construction in hot climates.

If the superplasticizer is added to the concrete too much, the slump will be too large and the stone will segregate.

(1) Improve the workability of concrete and reduce unilateral water consumption. The strength of concrete is related to the water-cement ratio, and if the water-cement ratio is reduced, the strength of the concrete can be improved, and the impermeability, frost resistance and durability of the concrete can be improved, and the corrosion of the steel bars in the concrete can be slowed down.

2) According to the water reduction efficiency, the water reducer can be divided into ordinary water reducer and high-efficiency water reducer.

Ordinary superplasticizers require a water reduction of 5%. Commonly used common superplasticizers are calcium lignosulfonate superplasticizers.

The high-efficiency superplasticizer requires a water reduction rate of 10%. At present, polyalkyl aryl sulfonates and melamine superplasticizers are commonly used.

Concrete. Concrete, for short"Concrete (tóng).": refers to the general term of engineering composite materials that cement aggregates into a whole by cementitious materials.

In concrete, if there is no superplasticizer, what can be used instead?

In concrete, if there is no superplasticizer, then the working performance of concrete will be greatly affected, so that it cannot be pumped or constructed. In the absence of superplasticizer, there is nothing to replace, the only way to lack the manuscript is to maintain the raw water Fuchang ash ratio under the premise, at the same time increase cement and water, so that the performance of concrete workers Jingzhou is the same as when there is a superplasticizer. In this way, the normal construction can be ensured and the strength of the concrete is not reduced.