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Compression Dewatering Forming: A Rheology-Driven Approach to Produce Complex-Shaped Prefabricated Cement Products
Chunlei Xia1, Qianping Ran2, Xiongfei Zhang1
1Beijing Municipal Engineering Research Institute, Beijing 100037, China.
Materials (Basel, Switzerland)
|April 24, 2025
Summary
This study introduces an effective method for producing complex-shaped cement products using compression dewatering. It determined optimal mortar mixes and analyzed material properties for efficient manufacturing of items like heating-type elevated floors.
Area of Science:
- Construction Materials Science
- Advanced Manufacturing Processes
- Building Technology
Background:
- Prefabricated buildings increasingly utilize complex-shaped cement products, such as heating-type elevated floors.
- Current pouring methods for these products suffer from low efficiency and poor precision.
- Compression dewatering shows potential for complex shapes but faces challenges with mortar fluidity and mold filling.
Purpose of the Study:
- To explore experimental methods for testing mortar strength and flowability in compression dewatering.
- To determine suitable mortar mix designs for producing complex-shaped cement products via compression dewatering.
- To analyze the relationship between mortar rheology, product forming performance, and the impact of compression on material properties.
Main Methods:
- Investigated experimental methods for assessing mortar strength and flowability under compression dewatering conditions.
- Determined optimal mortar mix ratios for complex-shaped cement product formation.
- Analyzed the rheological properties of the mortar and their correlation with forming performance.
- Studied the effects of the compression process on the final product's strength and microstructure.
Main Results:
- Established suitable mortar compositions and experimental procedures for compression dewatering of complex cement products.
- Identified key relationships between mortar rheology, mold filling capability, and final product quality.
- Demonstrated that the compression process positively influences the strength and micro-properties of the cement products.
Conclusions:
- Developed a novel cement-based heating-type elevated floor forming technology using compression dewatering.
- This research provides an effective solution for the efficient production of complex-shaped cement products.
- The findings offer a new approach to advanced cement product manufacturing, improving efficiency and precision.
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