The lubricating agent only needs water on the construction site to be used. In addition, it is easy to use and does not take up construction time. Therefore, it will not cause any trouble to workers during use and is easier to promote. In some places, pipes are moistened only by adding cement and water or preparing some mortar on site. This method will delay the construction progress, and the quality of the cement slurry and mortar prepared on site is unstable and can easily cause pump blockage, so it is not recommended.
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