Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Self-compacting coral lightweight concrete and preparation method thereof
The invention discloses self-compacting coral lightweight concrete and a preparation method thereof, and belongs to the technical field of building materials, the self-compacting coral lightweight concrete comprises the following components by weight: 350-450 parts of cement, 50-100 parts of fly ash, 30-60 parts of silica fume, 30-50 parts of fly ash floating beads, 750-830 parts of coral sand, 500-560 parts of coral stone, 200-250 parts of water, 1.5-5 parts of water reducer,0.1-1 part of a defoaming agent and 0.01-0.2 part of a thickening agent. According to the concrete, lightweight aggregate coral sand and coral stone are adopted to reduce the density of the aggregate, and fly ash floating beads are adopted to reduce the density of cementing material slurry, so that the density difference between the slurry and the aggregate is reduced while the overall density of the concrete is reduced, and the aggregate is prevented from floating or sinking; the water reducer and the thickeningagent are co-doped, so that the concrete has good workability, and the density of the slurry is further reduced; and the defoaming agent is used for improving the compactness of the cementing materialslurry, so that the strength is improved. The self-compacting coral lightweight concrete prepared from local materials has the characteristics of high flowability, low density and high strength, andmeets the construction requirements of ocean platforms.
本发明公开了一种自密实珊瑚轻质混凝土及其制备方法，属于建筑材料技术领域，包括以下重量份的组分：水泥350～450份、粉煤灰50～100份、硅灰30～60份、粉煤灰漂珠30～50份、珊瑚砂750～830份、珊瑚石500～560份、水200～250份、减水剂1.5～5份、消泡剂0.1～1份和增稠剂0.01～0.2份。所述混凝土采用轻质骨料珊瑚砂、珊瑚石降低骨料的密度，采用粉煤灰漂珠降低胶凝材料浆体的密度，在降低混凝土整体密度的同时减小浆体与骨料间的密度差，防止骨料上浮或下沉；复掺减水剂和增稠剂，使混凝土具有良好的工作性，并进一步降低浆体的密度；采用消泡剂改善胶凝材料浆体的密实度，进而提高强度。本发明就地取材所制得的自密实珊瑚轻质混凝土，具有流动性大、密度小、强度高的特点，满足海洋平台的建设需求。
Self-compacting coral lightweight concrete and preparation method thereof
The invention discloses self-compacting coral lightweight concrete and a preparation method thereof, and belongs to the technical field of building materials, the self-compacting coral lightweight concrete comprises the following components by weight: 350-450 parts of cement, 50-100 parts of fly ash, 30-60 parts of silica fume, 30-50 parts of fly ash floating beads, 750-830 parts of coral sand, 500-560 parts of coral stone, 200-250 parts of water, 1.5-5 parts of water reducer,0.1-1 part of a defoaming agent and 0.01-0.2 part of a thickening agent. According to the concrete, lightweight aggregate coral sand and coral stone are adopted to reduce the density of the aggregate, and fly ash floating beads are adopted to reduce the density of cementing material slurry, so that the density difference between the slurry and the aggregate is reduced while the overall density of the concrete is reduced, and the aggregate is prevented from floating or sinking; the water reducer and the thickeningagent are co-doped, so that the concrete has good workability, and the density of the slurry is further reduced; and the defoaming agent is used for improving the compactness of the cementing materialslurry, so that the strength is improved. The self-compacting coral lightweight concrete prepared from local materials has the characteristics of high flowability, low density and high strength, andmeets the construction requirements of ocean platforms.
本发明公开了一种自密实珊瑚轻质混凝土及其制备方法，属于建筑材料技术领域，包括以下重量份的组分：水泥350～450份、粉煤灰50～100份、硅灰30～60份、粉煤灰漂珠30～50份、珊瑚砂750～830份、珊瑚石500～560份、水200～250份、减水剂1.5～5份、消泡剂0.1～1份和增稠剂0.01～0.2份。所述混凝土采用轻质骨料珊瑚砂、珊瑚石降低骨料的密度，采用粉煤灰漂珠降低胶凝材料浆体的密度，在降低混凝土整体密度的同时减小浆体与骨料间的密度差，防止骨料上浮或下沉；复掺减水剂和增稠剂，使混凝土具有良好的工作性，并进一步降低浆体的密度；采用消泡剂改善胶凝材料浆体的密实度，进而提高强度。本发明就地取材所制得的自密实珊瑚轻质混凝土，具有流动性大、密度小、强度高的特点，满足海洋平台的建设需求。
Self-compacting coral lightweight concrete and preparation method thereof
一种自密实珊瑚轻质混凝土及其制备方法
LIU GAO (Autor:in) / GAO QUANQING (Autor:in) / GAO YUAN (Autor:in)
02.04.2021
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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