The segregation of concrete is that the cohesion between the components of the concrete mixture is insufficient to resist the sinking of the coarse aggregate, and the components of the concrete mixture separate from each other, causing the internal composition and The phenomenon of uneven structure. It usually manifests as the separation of coarse aggregate and mortar from each other, for example, dense particles are deposited at the bottom of the mixture, or the coarse aggregate is separated from the mixture as a whole.
Concrete is the main material for infrastructure construction. With the development of my country's infrastructure construction, the demand has increased by leaps and bounds. In recent years, high-strength and high-performance concrete has been widely used in high-rise buildings and bridge projects. However, when concrete ensures good pumping performance and flow performance, it is often difficult to maintain high cohesion performance, so segregation and bleeding are prone to occur.
Segregation of concrete is a phenomenon in which the cohesion between the components of the concrete mixture is insufficient to resist the sinking of the coarse aggregate, and the components of the concrete mixture separate from each other, resulting in uneven internal composition and structure.
At present, anti-segregation agents are only applicable to concrete systems using polycarboxylate water-reducing agents, and cannot be used in concrete systems using naphthalene and aliphatic water-reducing agents;
On the other hand, the above resistance As a component of concrete, the segregation agent is added during premixing at the commercial mixing station. During the actual application process, affected by factors such as temperature, transportation distance, and floor material quality, commercial concrete may segregate and bleed when it arrives at the construction site. will still exist.
" This product has good compatibility and does not affect the strength of concrete at all ages. It can be added during premixing at the commercial mixing station to improve the anti-segregation and anti-bleeding properties, or it can be used at the construction site. When problems such as segregation and bleeding occur in concrete, adding the anti-segregation agent directly to the concrete can quickly solve problems such as concrete segregation and bleeding.
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