Effect of Defoamer on Mortar

Release time:

2021-08-23

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Defoamer

Effect of Defoamer on Wet Density of Mortar
Different types of defoamers increase the wet density of mortar to different degrees, and the wet density of mortar increases with the increase of defoamer content.

Effect of Defoamer on Air Content of Mortar
Different types of defoamers reduce the air content of wet mortar to different degrees, and the air content of mortar decreases with the increase of defoamer content.

Effect of Defoamer on Compressive Strength of Mortar
Different types of defoaming agents have different degrees of increase in the compressive strength of mortar, and the compressive strength of mortar increases with the increase of the amount of defoaming agent.

Effect of defoamer on flexural strength of mortar
Different types of defoaming agents have different degrees of increase in the flexural strength of mortar, and the flexural strength of mortar increases with the increase of the amount of defoaming agent.

With the addition of defoamer, the flexural strength of mortar increases with the increase of age. The addition of defoamer in mortar products will not affect the continuous growth of flexural strength in the later period of mortar. The compressive strength of mortar increases with age. The addition of defoamer in the mortar product will not affect the continuous growth of the compressive strength of the mortar in the later period. The addition of defoamer can significantly improve the early compressive strength of mortar, and the increase of later strength is less. However, the addition of defoaming agent in addition to the early flexural strength of mortar has a certain improvement, the later flexural strength continued to improve. The compression ratio of mortar at different ages is higher than that of foundation mortar. The compression ratio of foundation mortar increases with age.

Effect of Defoamer on Tensile Bond Strength of Mortar
The addition of defoaming agent in mortar can improve the tensile bond strength between mortar and concrete slab.

Effect of Defoamer on Water Absorption of Mortar
Due to the addition of defoamer to change the degree of compaction of the mortar, so that the water absorption of the mortar surface layer has been reduced to varying degrees.

The addition of defoamer effectively reduces the air content of the wet mortar and increases the wet density of the mortar, thus significantly improving the physical properties of the mortar. The compressive and flexural strength and tensile bond strength of mortar were improved to varying degrees. The increase of the overall density of the mortar can significantly reduce the water absorption of the surface mortar.