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A platform for research: civil engineering, architecture and urbanism
Baking-free brick with ardealite as base material and preparation method of baking-free brick
The invention discloses a baking-free brick taking ardealite as a base material and a preparation method of the baking-free brick, and relates to the technical field of solid waste recycling. The baking-free brick is prepared from ardealite, tailings, magnesium oxide, magnesium sulfate heptahydrate and mineral powder. Wherein the ardealite and the tailings respectively account for 70-83% and 2-7% of the dry mass of the baking-free brick; by adopting the baking-free brick taking the ardealite as the base material, beneficial components in the proportion are fully utilized, and the overflow of pollutants in the ardealite is controlled by utilizing a chemical principle; the calcined tailings and the mineral powder enhance the strength of the baking-free brick and change the water softening resistance of the phosphogypsum baking-free brick; the magnesium sulfate heptahydrate and the magnesium oxide not only have a curing effect, but also can guide and accelerate the formation of the ardealite whiskers, so that the strength of the baking-free brick is enhanced; the baking-free brick with the ardealite as the base material has the advantages of being convenient to maintain, high in strength, low in cost, low in carbon, environmentally friendly and the like.
本发明公开了一种以磷石膏为基材的免烧砖及其制备方法，涉及固废再利用技术领域；免烧砖是由磷石膏、尾矿、氧化镁、七水硫酸镁和矿粉制备；其中，磷石膏和尾矿占免烧砖的干质量百分数分别为70～83％和2～7％；本发明通过采用一种以磷石膏为基材的免烧砖，充分利用配比中的有益成分，利用化学原理，控制磷石膏中的污染物外溢；煅烧尾矿、矿粉加强了免烧砖的强度，改变了磷石膏免烧砖的耐水软化特性；七水硫酸镁和氧化镁，除有固化的作用外，还能引导加速磷石膏晶须的行成，增强免烧砖的强度；本发明的以磷石膏为基材的免烧砖具有养护方便、强度高、成本低、低碳环保等优点。
Baking-free brick with ardealite as base material and preparation method of baking-free brick
The invention discloses a baking-free brick taking ardealite as a base material and a preparation method of the baking-free brick, and relates to the technical field of solid waste recycling. The baking-free brick is prepared from ardealite, tailings, magnesium oxide, magnesium sulfate heptahydrate and mineral powder. Wherein the ardealite and the tailings respectively account for 70-83% and 2-7% of the dry mass of the baking-free brick; by adopting the baking-free brick taking the ardealite as the base material, beneficial components in the proportion are fully utilized, and the overflow of pollutants in the ardealite is controlled by utilizing a chemical principle; the calcined tailings and the mineral powder enhance the strength of the baking-free brick and change the water softening resistance of the phosphogypsum baking-free brick; the magnesium sulfate heptahydrate and the magnesium oxide not only have a curing effect, but also can guide and accelerate the formation of the ardealite whiskers, so that the strength of the baking-free brick is enhanced; the baking-free brick with the ardealite as the base material has the advantages of being convenient to maintain, high in strength, low in cost, low in carbon, environmentally friendly and the like.
本发明公开了一种以磷石膏为基材的免烧砖及其制备方法，涉及固废再利用技术领域；免烧砖是由磷石膏、尾矿、氧化镁、七水硫酸镁和矿粉制备；其中，磷石膏和尾矿占免烧砖的干质量百分数分别为70～83％和2～7％；本发明通过采用一种以磷石膏为基材的免烧砖，充分利用配比中的有益成分，利用化学原理，控制磷石膏中的污染物外溢；煅烧尾矿、矿粉加强了免烧砖的强度，改变了磷石膏免烧砖的耐水软化特性；七水硫酸镁和氧化镁，除有固化的作用外，还能引导加速磷石膏晶须的行成，增强免烧砖的强度；本发明的以磷石膏为基材的免烧砖具有养护方便、强度高、成本低、低碳环保等优点。
Baking-free brick with ardealite as base material and preparation method of baking-free brick
一种以磷石膏为基材的免烧砖及其制备方法
JIANG ZHONGXI (author) / LIU NING (author) / LI YOUQIANG (author) / GAN YUNING (author) / LUO LEI (author) / LI WENFENG (author)
2022-12-20
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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