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A platform for research: civil engineering, architecture and urbanism
Low-grade mineral composite magnesium oxysulfate cement-based fireproof plate and preparation method thereof
The invention belongs to the field of fireproof building boards, and particularly relates to a low-grade mineral composite magnesium oxysulfate cement-based fireproof board and a preparation method thereof. According to the fireproof plate, modified magnesium oxysulfate cement paste serves as an upper surface material and a lower surface material of the fireproof plate, a mixed material prepared from a magnesium oxysulfate cement composite fire-resistant heat-insulating admixture, a mineral modified material, a light filler, a modifier and a foaming agent serves as a core layer, and rolling forming is directly conducted; the low-grade mineral composite magnesium oxysulfate cement-based fireproof plate comprises the following formula components: 30%-40% of magnesium oxide powder obtained by calcining low-grade magnesite, 20%-30% of low-grade boron tailings, 20%-30% of industrial waste sulfuric acid, 5%-15% of a fireproof heat-insulating admixture, 15%-25% of a mineral modified material, 5%-10% of a light filler, 1%-3% of an additional modifier, 0.5%-1.5% of a foaming agent and additional water. The low-grade mineral composite magnesium oxysulfate cement-based fireproof plate formed by direct rolling utilizes industrial waste liquid and low-grade minerals, and the manufactured fireproof plate is good in fire resistance, high in mechanical property, stable in weather resistance and low in cost.
本发明属防火建筑板材领域，具体涉及一种低品位矿物复合硫氧镁水泥基防火板及其制备方法。该防火板以改性硫氧镁水泥净浆为防火板上、下面料，以硫氧镁水泥复合耐火隔热掺料、矿物改性材料、轻质填充物、改性剂、发泡剂制成混料为芯层，直接辊压成型；低品位矿物复合硫氧镁水泥基防火板配方组分如下：低品位菱镁矿煅烧得到的氧化镁粉30%~40%，低品位硼尾矿20%~30%、工业废硫酸20%~30%、耐火隔热掺料5%~15%、矿物改性材料15%~25%、轻质填充物5%~10%、外加改性剂1%~3%、发泡剂0.5%~1.5%，外加水。直接辊压成型的低品位矿物复合硫氧镁水泥基防火板利用了工业废液和低品位矿物，而且制成的防火板耐火性能好、力学性能强、耐候性稳定、成本低。
Low-grade mineral composite magnesium oxysulfate cement-based fireproof plate and preparation method thereof
The invention belongs to the field of fireproof building boards, and particularly relates to a low-grade mineral composite magnesium oxysulfate cement-based fireproof board and a preparation method thereof. According to the fireproof plate, modified magnesium oxysulfate cement paste serves as an upper surface material and a lower surface material of the fireproof plate, a mixed material prepared from a magnesium oxysulfate cement composite fire-resistant heat-insulating admixture, a mineral modified material, a light filler, a modifier and a foaming agent serves as a core layer, and rolling forming is directly conducted; the low-grade mineral composite magnesium oxysulfate cement-based fireproof plate comprises the following formula components: 30%-40% of magnesium oxide powder obtained by calcining low-grade magnesite, 20%-30% of low-grade boron tailings, 20%-30% of industrial waste sulfuric acid, 5%-15% of a fireproof heat-insulating admixture, 15%-25% of a mineral modified material, 5%-10% of a light filler, 1%-3% of an additional modifier, 0.5%-1.5% of a foaming agent and additional water. The low-grade mineral composite magnesium oxysulfate cement-based fireproof plate formed by direct rolling utilizes industrial waste liquid and low-grade minerals, and the manufactured fireproof plate is good in fire resistance, high in mechanical property, stable in weather resistance and low in cost.
本发明属防火建筑板材领域，具体涉及一种低品位矿物复合硫氧镁水泥基防火板及其制备方法。该防火板以改性硫氧镁水泥净浆为防火板上、下面料，以硫氧镁水泥复合耐火隔热掺料、矿物改性材料、轻质填充物、改性剂、发泡剂制成混料为芯层，直接辊压成型；低品位矿物复合硫氧镁水泥基防火板配方组分如下：低品位菱镁矿煅烧得到的氧化镁粉30%~40%，低品位硼尾矿20%~30%、工业废硫酸20%~30%、耐火隔热掺料5%~15%、矿物改性材料15%~25%、轻质填充物5%~10%、外加改性剂1%~3%、发泡剂0.5%~1.5%，外加水。直接辊压成型的低品位矿物复合硫氧镁水泥基防火板利用了工业废液和低品位矿物，而且制成的防火板耐火性能好、力学性能强、耐候性稳定、成本低。
Low-grade mineral composite magnesium oxysulfate cement-based fireproof plate and preparation method thereof
一种低品位矿物复合硫氧镁水泥基防火板及其制备方法
HUANG JUNTONG (author) / XIAO JINSHENG (author) / SHUAI RENMING (author) / ZENG YIHAO (author)
2023-03-07
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
/
B28B
Formgeben von Ton oder anderen keramischen Stoffzusammensetzungen, Schlacke oder von Mischungen, die zementartiges Material enthalten, z.B. Putzmörtel
,
SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS, SLAG OR MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
/
B28C
Tonaufbereitung
,
PREPARING CLAY
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