Concrete anti-segregation agent additive adsorbent uneven segregation factory delivery

Causes and countermeasures for concrete segregation As we all know, ordinary concrete is mainly mixed with cement, water, sand and gravel coarse and fine aggregates, admixtures and other materials; pumped concrete is a common On the basis of concrete, it is made by adjusting the coarse and fine aggregate gradation, sand rate and adding a certain amount of fly ash. In addition to the mixing method and mixing time, concrete segregation is generally related to the quality of the cementitious materials of the concrete mixture, excessive water consumption, poor gravel gradation, and excessive amount of water-reducing agent. The relationship is closer. Cement is the main cementing material in concrete. The stability of cement quality directly affects the stability of concrete quality. Changes in cement quality will cause segregation of concrete, and there are many factors in cement that affect the performance of concrete mixtures. Not only can concrete segregate on the construction site, it can be dealt with very conveniently and quickly, which is extremely beneficial to economic and time benefits. Jiangsu anti-segregation rescue agent

Anhui Yulong anti-segregation agent was authorized for an invention patent as early as 2019. It “fills the top anti-segregation solution for domestic concrete” Technical gap on concrete segregation problem”. In the concrete pumping construction of construction projects, the most basic and important condition is that the concrete itself must maintain the working performance of greater fluidity within a certain period of time (usually 120 to 240 minutes). That is: it is required to have a small slump loss and no bleeding or segregation. However, due to the mandatory implementation of the “environmentally friendly and resource-saving” national policy and the current reality that domestic natural sand is increasingly depleted, our country has already clearly stipulated that natural sand must not be mined at will along rivers and other places. In this way, many concrete production companies can only use artificial machine-made sand with poor gradation and poor workability more and more intensively. Heilongjiang Cement Concrete Segregation Treatment Agent Currently domestic products such as polyacrylamide have been used to resist segregation in concrete due to their strong flocculation effect.

Sand and gravel are materials used in relatively large quantities in concrete. The quality of sand and gravel directly affects the quality of concrete. Fluctuations in the quality of sand and gravel can easily cause segregation of concrete, and There are many reasons for segregation. 1 The increase in gravel particle size, deterioration of gradation, and single gradation can easily cause the segregation of concrete. 2. Excessive amounts of stones (particles with a particle size greater than 9.75 mm) in the sand, especially excessive amounts of flake stone chips, will seriously affect the workability of concrete and lead to serious segregation of concrete. 3. If the moisture content of sand and gravel is too high (especially if the moisture content of sand is too high, greater than 10%), it will be difficult to control the quality of concrete and prone to concrete segregation. Because the water content in the sand is too large, the water content in the sand is in a supersaturated state. When the concrete mixture is mixed in the mixer, the water in the capillary tubes on the surface of the sand cannot be released in time, so it is easy to use too much mixing water during mixing. At the same time, during the transportation of concrete, the water in the capillary tubes of the aggregate is continuously released, destroying the bond between the aggregate and the cement slurry, causing segregation and bleeding of the concrete.

In order to avoid the segregation problem of concrete caused by aggregate problems, we should first focus on prevention and strictly implement the inspection system for the incoming aggregates to ensure the quality of the aggregates. . 2. For the first reason above, the sand rate can be appropriately increased to adjust the concrete mix ratio to solve the segregation problem. 3. For the segregation problem caused by excessive flake stone chips in the aggregate, adjusting the sand rate alone cannot solve the problem. The concrete cementing materials (especially the amount of admixtures) should be increased and the amount of admixtures should be adjusted at the same time. 4. The problem of concrete segregation caused by the problem of aggregate moisture content should be solved by extending the mixing time. Increasing the dosage of admixtures such as fly ash is also very effective in controlling this type of segregation phenomenon. The concrete itself does not segregate.

Anhui Yulong anti-segregation agent was authorized as early as 2019 for an invention patent. It “filled the technical gap in domestic concrete anti-segregation to solve the problem of concrete segregation” “.

Usage (dosage):

Add 0.4 to 0.5 liters to 1 cubic meter of concrete Depending on the slump of the concrete on site, the dosage can be adjusted slightly. If the slump is small, you can add a little less. If the slump is large, you can add a little more.

2. Add our product into the concrete according to the dosage, stir the tank truck quickly for 3 to 5 minutes, and the concrete will return to its normal state.

PS:

1 This product can be customized according to customer requirements, for example, adjust the strength Deviation, retardant ingredients, water retention ingredients, dispersion properties, etc.

2. Adding this product will not affect the initial setting time and final setting time of concrete.

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