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Lightweight aggregate prepared from solid waste as well as preparation method and application of lightweight aggregate
The invention discloses lightweight aggregate prepared from solid waste as well as a preparation method and application thereof, and belongs to the field of comprehensive utilization of solid waste. According to the invention, bulk solid wastes such as waste stone, tailing slag, coal gangue, oily sludge, fly ash and the like are used as raw materials, and additives are added to prepare the concrete lightweight aggregate under a high-temperature condition. The particle size distribution of the lightweight aggregate is 0.1-60mm, the density is 400-1200kg/m < 3 >, and the cylinder compressive strength reaches 2-8MPa. The grade distribution of light structural concrete prepared from the lightweight aggregate is LC5-LC60, and the lowest heat conductivity coefficient can reach 0.13. The lightweight aggregate prepared by the invention can replace natural gravel, and can be used for producing building materials such as thermal insulation concrete, thermal insulation structural concrete, structural concrete and the like.
本发明公开了一种固体废弃物制备的轻骨料及其制备方法和应用，属于固体废弃物综合利用领域。本发明利用废石料、尾矿渣、煤矸石、含油污泥、粉煤灰等大宗固体废弃物为原料，通过外加添加剂，在高温条件下制备混凝土轻骨料。该轻骨料粒径分布为0.1‑60mm，密度为400‑1200kg/m3，筒压强度达到2‑8MPa。利用该轻骨料制备的轻质结构混凝土标号等级分布为LC5‑LC60，导热系数最低可达到0.13。本发明制备的轻骨料可以代替天然砂石，可用于生产保温混凝土、保温结构混凝土和结构混凝土等建筑材料。
Lightweight aggregate prepared from solid waste as well as preparation method and application of lightweight aggregate
The invention discloses lightweight aggregate prepared from solid waste as well as a preparation method and application thereof, and belongs to the field of comprehensive utilization of solid waste. According to the invention, bulk solid wastes such as waste stone, tailing slag, coal gangue, oily sludge, fly ash and the like are used as raw materials, and additives are added to prepare the concrete lightweight aggregate under a high-temperature condition. The particle size distribution of the lightweight aggregate is 0.1-60mm, the density is 400-1200kg/m < 3 >, and the cylinder compressive strength reaches 2-8MPa. The grade distribution of light structural concrete prepared from the lightweight aggregate is LC5-LC60, and the lowest heat conductivity coefficient can reach 0.13. The lightweight aggregate prepared by the invention can replace natural gravel, and can be used for producing building materials such as thermal insulation concrete, thermal insulation structural concrete, structural concrete and the like.
本发明公开了一种固体废弃物制备的轻骨料及其制备方法和应用，属于固体废弃物综合利用领域。本发明利用废石料、尾矿渣、煤矸石、含油污泥、粉煤灰等大宗固体废弃物为原料，通过外加添加剂，在高温条件下制备混凝土轻骨料。该轻骨料粒径分布为0.1‑60mm，密度为400‑1200kg/m3，筒压强度达到2‑8MPa。利用该轻骨料制备的轻质结构混凝土标号等级分布为LC5‑LC60，导热系数最低可达到0.13。本发明制备的轻骨料可以代替天然砂石，可用于生产保温混凝土、保温结构混凝土和结构混凝土等建筑材料。
Lightweight aggregate prepared from solid waste as well as preparation method and application of lightweight aggregate
一种固体废弃物制备的轻骨料及其制备方法和应用
WANG SHUTAO (author)
2023-09-22
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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