Fiber cement board with high fixed carbon content and preparation method thereof

The invention discloses a fiber cement board with high fixed carbon content and a preparation method thereof. The preparation method comprises the following steps: mixing fibers, a gelling component, a filler and water to obtain slurry; the slurry is subjected to vacuum dehydration forming, and a pl...

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Bibliographic Details
Main Authors XIE DAMING, HU SHUGUANG, LIU ZHICHAO, WANG FAZHOU
Format Patent
LanguageChinese
English
Published 05.03.2024
Subjects
ARTIFICIAL STONE
CEMENTS
CERAMICS
CHEMISTRY
COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS
CONCRETE
LIME, MAGNESIA
METALLURGY
REFRACTORIES
SLAG
TREATMENT OF NATURAL STONE
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Summary:The invention discloses a fiber cement board with high fixed carbon content and a preparation method thereof. The preparation method comprises the following steps: mixing fibers, a gelling component, a filler and water to obtain slurry; the slurry is subjected to vacuum dehydration forming, and a plate blank is obtained; pre-curing the plate blank under the condition that the CO2 concentration is 20-30% VOL, and then carrying out carbonization curing under the condition that the CO2 concentration is 60-80% VOL, so as to obtain the fiber cement plate with high fixed carbon content. According to the method, low-concentration CO2 is adopted for pre-curing, a drying box is not used for drying treatment or static curing, the low-concentration CO2 can enable the fiber cement board to be subjected to a preliminary carbonization reaction, heat release is generated, a small amount of water is removed, and the fiber cement board can open a carbonization channel easily. And then high-concentration CO2 carbonization main
Bibliography:Application Number: CN202311505811