The performance influence of RDP&VAE

RDP&VAE

Whether it is the functional failure caused by the structural damage of the old concrete structure project, or the structure of the new concrete project due to various reasons caused by honeycomb, hemp surface and other defects, will affect the safety and use of the building, and affect people’s production and life.

Therefore, it is very important to repair the damaged part of the coagulation ten structures, and the development of the concrete structure repair mortar is also imperative.

There are many types of polymer added components in the concrete structure repair mortar.

Redispersed latex powder is one of the most important polymer components and is the largest organic component in the repair mortar composite system.

With the increase of glue powder mixing amount, the apparent density of mortar gradually decreases.

The consistency value first increases sharply and then is maintained smoothly, the water retention rate increases linearly.

And the condensation time gradually becomes longer.The increase of water retention rate is conducive to the repair of repair mortar in dry environment, even without wet maintenance;

The extension of setting time helps to extend the operating time of repair mortar.

胶粉在低量时会使砂浆的抗压强度提高,然后随着抗压强度的提高逐渐降低,砂浆的抗折强度和抗拉粘结强度随胶粉的增加而增加的趋势,其影响是砂浆强度>抗拉粘结强度>抗压强度。

When the glue powder is low, the consistency value is large and the mortar viscosity is greatly improved.

The compressive strength increases significantly and the tensile strength and tensile bonding strength are also improved to different degrees, and the mechanical properties are excellent.

RDP&VAE

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