Application of Cellulose Ether in the Mechanized Construction of Plastering Mortar

Cellulose ether plays a crucial role in the mechanized construction of plastering mortar, primarily by improving the performance 

of the mortar and adapting to the technical requirements of mechanized operations. The following is a detailed analysis of its applications and functions:

Improvement of Mortar Workability

1.Enhanced Slump and Consistency

 Cellulose ether acts as a water-retaining agent and thickener, adjusting the fluidity of the mortar 

to meet the pumping and spraying requirements of mechanized equipment.

 It prevents water segregation and sedimentation, ensuring the mortar remains uniformly plastic during transportation

and application, reducing pipe blockages, and improving construction efficiency.

2.Extended Open Time

 Mechanized construction requires mortar to maintain workability over a longer period.

 Cellulose ether delays cement hydration, extending the "open time" for surface finishing.

Reinforcement of Adhesion and Bonding

1.Strong Substrate Adhesion

 By improving the thixotropy of the mortar, cellulose ether enhances its adhesion to various substrates , reducing sagging or peeling during spraying.

 This is critical for mechanized operations, where uniform coating thickness and bonding strength are essential to avoid rework.

2.Reduction of Cracking Risks

The water-retaining property of cellulose ether ensures sufficient moisture for cement hydration, minimizing shrinkage cracks.

In mechanized plastering, where rapid application may increase drying stress, this function is vital for long-term durability.

Impact on Construction Efficiency and Cost

1.Faster Application Speed

 Mechanized plastering with cellulose ether-modified mortars can achieve 3-5 times higher productivity than manual methods,

reducing labor costs and construction time.

 Consistent mortar performance minimizes surface defects, reducing the need for touch-ups.

2.Material Saving

The thixotropic properties of cellulose ether reduce splashing and overspray during spraying, lowering material waste. 

For large-scale projects, this translates to significant cost savings.

Name: Molly.Wang

E-Mail:molly.wang@jtdf-rdp.com

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