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A platform for research: civil engineering, architecture and urbanism
Aerated concrete plate beneficial to recycling and preparation method thereof
The invention discloses an aerated concrete plate beneficial to recycling and a preparation method thereof, and belongs to the technical field of aerated concrete plate production, and the preparation method comprises the following steps: designing a proper pouring forming mold according to the assembly requirement of the aerated concrete plate to be produced, and uniformly implanting a reinforcing mesh into the mold; in the invention, waste tailing silicon sludge is used for replacing silica sand and is matched with materials such as cement, lime and gypsum, XRD and SEM test methods are used for researching a micromechanism of forming the aerated concrete plate, and the result shows that when the silicon sludge is ground for 20 minutes, the specific surface area is 358.1 m < 2 >. Kg <-1 >, and when the ratio of the silicon sludge to the cement to the lime to the gypsum is 60: 12: 25: 3, the specific surface area of the aerated concrete plate is 358.1 m < 2 >. Kg <-1 >. The strength of the aerated concrete plate reaches 10 MPa to the maximum, the average compressive strength is 6.0 MPa or above, the requirements of A3.5 aerated concrete plates are met, the apparent density of building blocks is smaller than 625 kg.m <-3 > and reaches the B06 grade, and the strength of the aerated concrete plate is enhanced through the cementation effect of C-S-H gel, tobermorite and unreacted quartz in the aerated concrete plate.
本发明公开了一种利于回收利用的加气混凝土板材及其制备方法，属于加气混凝土板材生产技术领域，包括：按照所需要生产加气混凝土板材的装配需要，设计出适合的浇筑成型模具，并在模具内均匀植入钢筋网。本发明中，利用废弃物尾矿硅泥替代硅砂，与水泥、石灰、石膏等材料配合，使用XRD和SEM测试方法研究加气混凝土板材形成的微观机理，结果表明，硅泥粉磨20min，比表面积为358.1m2.kg‑1，原材料比例为，硅泥∶水泥∶石灰∶石膏＝60∶12∶25∶3时，加气混凝土板材强度最高达到10MPa，平均抗压强度6.0MPa以上，满足A3.5加气混凝土板材的要求，砌块表观密度均小于625kg.m‑3，达到B06等级，加气混凝土板材中C‑S‑H凝胶与托贝莫来石以及未反应的石英的胶结作用增强其强度。
Aerated concrete plate beneficial to recycling and preparation method thereof
The invention discloses an aerated concrete plate beneficial to recycling and a preparation method thereof, and belongs to the technical field of aerated concrete plate production, and the preparation method comprises the following steps: designing a proper pouring forming mold according to the assembly requirement of the aerated concrete plate to be produced, and uniformly implanting a reinforcing mesh into the mold; in the invention, waste tailing silicon sludge is used for replacing silica sand and is matched with materials such as cement, lime and gypsum, XRD and SEM test methods are used for researching a micromechanism of forming the aerated concrete plate, and the result shows that when the silicon sludge is ground for 20 minutes, the specific surface area is 358.1 m < 2 >. Kg <-1 >, and when the ratio of the silicon sludge to the cement to the lime to the gypsum is 60: 12: 25: 3, the specific surface area of the aerated concrete plate is 358.1 m < 2 >. Kg <-1 >. The strength of the aerated concrete plate reaches 10 MPa to the maximum, the average compressive strength is 6.0 MPa or above, the requirements of A3.5 aerated concrete plates are met, the apparent density of building blocks is smaller than 625 kg.m <-3 > and reaches the B06 grade, and the strength of the aerated concrete plate is enhanced through the cementation effect of C-S-H gel, tobermorite and unreacted quartz in the aerated concrete plate.
本发明公开了一种利于回收利用的加气混凝土板材及其制备方法，属于加气混凝土板材生产技术领域，包括：按照所需要生产加气混凝土板材的装配需要，设计出适合的浇筑成型模具，并在模具内均匀植入钢筋网。本发明中，利用废弃物尾矿硅泥替代硅砂，与水泥、石灰、石膏等材料配合，使用XRD和SEM测试方法研究加气混凝土板材形成的微观机理，结果表明，硅泥粉磨20min，比表面积为358.1m2.kg‑1，原材料比例为，硅泥∶水泥∶石灰∶石膏＝60∶12∶25∶3时，加气混凝土板材强度最高达到10MPa，平均抗压强度6.0MPa以上，满足A3.5加气混凝土板材的要求，砌块表观密度均小于625kg.m‑3，达到B06等级，加气混凝土板材中C‑S‑H凝胶与托贝莫来石以及未反应的石英的胶结作用增强其强度。
Aerated concrete plate beneficial to recycling and preparation method thereof
一种利于回收利用的加气混凝土板材及其制备方法
LIANG BENYU (author) / ZHAO BIN (author) / ZHU HUANJIE (author) / LU YAOWU (author) / WANG YUWEI (author) / JIANG SHIQI (author)
2022-04-29
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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