Apparatus and method for producing foamed cementitious slurries
JP2025534858A5Pending Publication Date: 2026-09-18SAINT GOBAIN PLACO SAS
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Patent Information
- Application Number
- JP2025505912
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- Priority Date
- 2022-10-20
- Filing Date
- 2023-10-18
- Publication Date
- 2026-09-18
AI Technical Summary
Technical Problem
Existing methods for producing lightweight gypsum products by introducing foam into a settable slurry result in high foam loss due to shearing and dispersion, limiting the density reduction achieved.
Method used
An apparatus and method that control the velocity and location of foam introduction into a cementitious slurry, ensuring low shear forces are applied, maintaining foam stability and uniform mixing.
Benefits of technology
The apparatus and method achieve efficient and consistent incorporation of foam into cementitious slurries with low foam loss, resulting in improved foam stability and uniformity.
✦ Generated by Eureka AI based on patent content.
Abstract
According to the present invention, there is provided an apparatus (100) for producing a foamed cementitious slurry, the apparatus comprising: a mixing chamber (101) for mixing a cementitious material with water to form a cementitious slurry; and a channel (103) fluidly connected to the mixing chamber (101) at a first end (111) for receiving the cementitious slurry from the mixing chamber (101). In the apparatus, the channel (103) extends from the first end (111) and terminates at least one second end (112). The channel (103) comprises a first foam inlet (106) for introducing foam into the channel (103), and the apparatus (100) is configured, during use, to introduce foam through the first foam inlet (106) at a velocity no greater than 5.4 times the velocity of the cementitious slurry in the channel (103). Methods of using the apparatus are also described.
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