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Continuous methods of making fiber reinforced concrete panels

一种纤维增强、纤维的技术，应用在生产纤维增强水泥材料领域，能够解决损坏、成球、破坏增强纤维等问题，达到消除板精加工操作的需要、低成本的效果

Inactive Publication Date: 2019-04-02
USG CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0017] Fiber clumping and balling during the mixing operation due to the large amount of fiber added at one time in the batch mixer
[0018] The longer mixing times associated with batch mixing processes tend to damage and destroy the reinforcing fibers

Method used

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  • Continuous methods of making fiber reinforced concrete panels
  • Continuous methods of making fiber reinforced concrete panels
  • Continuous methods of making fiber reinforced concrete panels

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0517] Figure 39 A photograph is shown of a slump cake 101 of a fiber reinforced cement slurry mixture prepared using the method of the present invention employing a slurry mixer followed by a separate fiber slurry mixer.

example 2

[0519] Figure 40is the thickness distribution of a 3 / 4" thick fiber reinforced cement board produced by the method of the present invention using a slurry mixer followed by a separate fiber slurry mixer. It shows the uniformity achieved when depositing a single layer Thickness. The fiber slurry mixture contains Portland cement, gypsum and glass fibers.

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Abstract

A continuous method includes the steps: mixing water (7) and cementitous powder (5) to form slurry (3); mixing the slurry (3) and reinforcement fibers (34) in a single pass horizontal continuous mixer(32,132) to form fiber-slurry mixture (36,46), the mixer (32) including an elongated mixing chamber (62,163) having a reinforcement fiber inlet port (74B,134A), and upstream of the fiber inlet port (74B,134A) is an inlet port (74A) to introduce water and cementitous powder together as one stream or at least two inlet ports (105A,107A) to introduce water and dry cementitous powder separately as separate streams into the chamber (62,163), a rotating horizontal shaft / s (88,129) within the chamber (62,163), part of the chamber (62,163) for mixing the fibers (34) and slurry (3) and moving the fiber-slurry mixture to a mixture outlet; discharging the fiber-slurry mixture from the mixer outlet (78A,136A); forming and setting the fiber-slurry mixture (36,46) on a moving surface; cutting the set mixture (36,46) into fiber reinforced concrete panels (55) and removing the panels (55) from the moving surface.

Description

[0001] Cross References to Related Applications [0002] This application refers to the following co-pending literature: [0003] U.S. Provisional Patent Application No. 62 / 371,578, entitled Continuous Mixer and Method for Mixing Reinforcement Fibers with Cementitious Material, filed August 5, 2016; [0004] U.S. Provisional Patent Application No. 62 / 371,569, filed August 5, 2016, entitled Headbox and Forming Station for Fiber-Reinforced Cement Board Production; [0005] U.S. Provisional Patent Application No. 62 / 371,590, entitled Method for Producing Fiber-Reinforced Cement Slurry Using a Multi-Stage Continuous Mixer, filed August 5, 2016; [0006] All are incorporated herein by reference in their entirety. technical field [0007] The present invention discloses a method for producing fiber reinforced cement material in a continuous process. Background technique [0008] U.S. Patent No. 6,986,812 to Dubey et al., which is incorporated herein by reference in its entiret...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B28B1/52B01F7/00B01F7/04B01F7/08B01F3/12B29B7/48B28B3/22B28B5/02B28C5/12B28C5/14B28C5/40B29C48/67
CPCB28B1/526B28B3/224B28B5/027B28C5/1238B28C5/1246B28C5/143B28C5/146B28C5/148B28C5/402B29C48/67B29B7/44B29B7/483B29B7/488B29B7/72B29B7/90B01F23/53B01F27/2123B01F27/1921B01F27/702B01F27/723B01F35/715B28B1/522B28B13/0275B28C5/1284B28C7/0418B29B7/482B01F23/706B01F27/707B01F27/73B05C1/0834
Inventor A·杜贝P·B·格罗扎C·R·尼尔森
Owner USG CORP