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A platform for research: civil engineering, architecture and urbanism
Regenerated micro powder foam lightweight concrete and preparation method thereof
The invention discloses regenerated micro-powder foam lightweight concrete and a preparation method thereof. The foam lightweight concrete is prepared from the following raw materials: regenerated micro-powder, cement, a foaming agent and water, wherein the regenerated micro powder needs to be ground for 0.5-1.5 min under the conditions that the temperature is not lower than 100 DEG C and the speed is 25,000-300,000 r/min, the passing rate of a 75-micron sieve is not lower than 70%, and the passing rate of a 45-micron sieve is not lower than 55%; the mass ratio of the regenerated micro powder to the cement is not greater than 3: 7; the water-solid ratio of the foam lightweight concrete is 1: (1.8-2.1); according to the foamed lightweight concrete, part of cement is replaced by the regenerated micro powder subjected to high-temperature and high-speed grinding treatment, so that on the basis of ensuring that the technical performance of the foamed lightweight concrete meets the requirements, the preparation cost of the foamed lightweight concrete is greatly reduced, the construction waste utilization shortages are made up, the utilization rate of the regenerated powder is increased, and the production cost is reduced. The application range is widened, and large-scale popularization and application of the regenerated micro-powder foam lightweight concrete are facilitated.
本发明公开了一种再生微粉泡沫轻质混凝土及其制备方法，该泡沫轻质混凝土原材料包括再生微粉、水泥、发泡剂和水；其中，所述再生微粉需经过不低于100℃、25000‑30000r/min的条件研磨0.5‑1.5min，且75μm筛的通过率不低于70%、45μm筛的通过率不低于55%；所述再生微粉与水泥的质量比不大于3:7；所述泡沫轻质混凝土的水固比为1:1.8‑2.1；该泡沫轻质混凝土利用经过高温、高速研磨处理的再生微粉替代了部分水泥，在保证泡沫轻质混凝土的技术性能满足要求的基础上，大大降低了泡沫轻质混凝土的制备成本，补齐了建筑垃圾利用短板，提高了再生粉料的利用率，拓宽了应用范围，有利于再生微粉泡沫轻质混凝土的大规模推广应用。
Regenerated micro powder foam lightweight concrete and preparation method thereof
The invention discloses regenerated micro-powder foam lightweight concrete and a preparation method thereof. The foam lightweight concrete is prepared from the following raw materials: regenerated micro-powder, cement, a foaming agent and water, wherein the regenerated micro powder needs to be ground for 0.5-1.5 min under the conditions that the temperature is not lower than 100 DEG C and the speed is 25,000-300,000 r/min, the passing rate of a 75-micron sieve is not lower than 70%, and the passing rate of a 45-micron sieve is not lower than 55%; the mass ratio of the regenerated micro powder to the cement is not greater than 3: 7; the water-solid ratio of the foam lightweight concrete is 1: (1.8-2.1); according to the foamed lightweight concrete, part of cement is replaced by the regenerated micro powder subjected to high-temperature and high-speed grinding treatment, so that on the basis of ensuring that the technical performance of the foamed lightweight concrete meets the requirements, the preparation cost of the foamed lightweight concrete is greatly reduced, the construction waste utilization shortages are made up, the utilization rate of the regenerated powder is increased, and the production cost is reduced. The application range is widened, and large-scale popularization and application of the regenerated micro-powder foam lightweight concrete are facilitated.
本发明公开了一种再生微粉泡沫轻质混凝土及其制备方法，该泡沫轻质混凝土原材料包括再生微粉、水泥、发泡剂和水；其中，所述再生微粉需经过不低于100℃、25000‑30000r/min的条件研磨0.5‑1.5min，且75μm筛的通过率不低于70%、45μm筛的通过率不低于55%；所述再生微粉与水泥的质量比不大于3:7；所述泡沫轻质混凝土的水固比为1:1.8‑2.1；该泡沫轻质混凝土利用经过高温、高速研磨处理的再生微粉替代了部分水泥，在保证泡沫轻质混凝土的技术性能满足要求的基础上，大大降低了泡沫轻质混凝土的制备成本，补齐了建筑垃圾利用短板，提高了再生粉料的利用率，拓宽了应用范围，有利于再生微粉泡沫轻质混凝土的大规模推广应用。
Regenerated micro powder foam lightweight concrete and preparation method thereof
一种再生微粉泡沫轻质混凝土及其制备方法
ZHAO YAWAN (author) / LIU JUNYONG (author) / SHEN YABIN (author) / SU WEIWEI (author) / YIN LIHUA (author) / GAI WEIPENG (author) / SUN TENG (author) / GAO XUAN (author) / ZHAO LIJUAN (author) / NAN NING (author)
2024-02-09
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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