(RDP&VAE)The ence of redispersed latex powder in ar-leveling mortar

The effect of dispersed latex powder on tensile properties

The increase of bulk tensile strength and fracture elongation of latex powder mixing. The increase of Fuying brand latex powder mixing amount, the cohesion (tensile strength) has been significantly improve. And the flexibility and variability of cement-based self-leveling materials have also been significantly improve. This is consistent with the latex powder itself stretching more than 10 times stronger than the cement. According to the test results, when the mixture amount is 4%. The tensile strength is increase by more than 180%, and the fracture elongation rate is increase by more than 200%. From the perspective of health and comfort, this improvement in flexibility is conducive to reducing noise and improving the fatigue on the human body standing for a long time.

Latex powder can be redisperse against the influence of folding and compressive strength

Under the condition of constant water-ash ratio and gas content. The mixing amount of latex powder has a strong influence on the folding resistance and compressive strength of the cement base floor materials. With the increase of latex powder mixing amount. The compressive strength is slightly reduce, while the compressive strength is significantly improve. That is, the compression ratio (compressive strength / compressive strength) gradually decreases. This reflects that the brittleness of the material decreased significantly with the increase of Fuying latex powder. This will reduce the elastic modulus of the spontaneous flat floor material and improve its crack resistance.RDP&VAE

Due to the particularity of leveling floor construction.(1) the leveling layer is the secondary additional layer. (2) the construction thickness is usually thinner than the general leveling mortar. (3) after the construction, usually without maintenance or maintenance time. (4) the leveling layer against the thermal stress from different materials. (5) sometimes the leveling material is use for the base surface difficult to attach.RDP&VAE

Therefore, even if there is the auxiliary effect of interface treatment agent. In order to ensure that the arogenous leveling layer can be firmly attache to the base for a long time. Adding a certain amount of latex powder can ensure that the arogenous leveling materials have long-term reliable bonding force. Whether in the absorbent base, organic base (e. g. material) or non-absorptive base (e. g. metal, e. g. ship deck). Above, the bond strength significantly with the increase of the mixing amount of latex powder. Take the form of damage as an example, the damage of the bond strength test of the leveling material but not at the interface, indicating that its bonding is good.RDP&VAE


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