Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Unfired hollow aggregate and preparation method thereof as well as lightweight concrete wallboard and preparation method thereof
The invention belongs to the technical field of building materials, and provides an unfired hollow aggregate and a preparation method thereof, and a lightweight concrete wallboard and a preparation method thereof. The volume of the waste foam particles is shrunk after being heated to form a cavity in the aggregate; and after the waste foam particles are melted, a layer of compact resin film is formed on the surface of the cavity, so that the unfired hollow aggregate can form a stable and relatively closed clean air layer in the lightweight concrete wallboard, and better sound insulation and heat preservation effects are achieved. The chopped fibers can enable the engineering muck, the mineral powder and the fly ash to be better and tightly combined with the waste foam particles, so that the whole body is more compact, and the strength and the crack resistance of the unfired hollow aggregate are further improved; meanwhile, the chopped fibers can form burr-shaped protrusions on the surface of the unfired hollow aggregate, floating of the unfired hollow aggregate can be inhibited in the preparation process of the lightweight concrete wallboard, and the unfired hollow aggregate is evenly distributed in the lightweight concrete wallboard. The unfired hollow aggregate is of a hollow structure, so that the lightweight concrete wallboard has low surface density.
本发明属于建筑材料技术领域，提供了一种免烧空心骨料及其制备方法和轻质混凝土墙板及其制备方法。废旧泡沫颗粒受热体积收缩，在骨料内部形成空腔；且废旧泡沫颗粒熔化后在空腔的表面形成一层致密的树脂膜，这可以使免烧空心骨料在轻质混凝土墙板中形成稳定的相对封闭的净空气层，起到更好的隔声及保温效果。短切纤维能够使工程渣土、矿粉和粉煤灰更好地与废旧泡沫颗粒紧密结合，使整体更致密，进而提高免烧空心骨料的强度及抗裂性能；同时，短切纤维可在免烧空心骨料表面形成毛刺状凸起，在轻质混凝土墙板制备过程中可抑制免烧空心骨料上浮，使免烧空心骨料在轻质混凝土墙板中均匀分布。免烧空心骨料为空心结构，使轻质混凝土墙板具备低面密度。
Unfired hollow aggregate and preparation method thereof as well as lightweight concrete wallboard and preparation method thereof
The invention belongs to the technical field of building materials, and provides an unfired hollow aggregate and a preparation method thereof, and a lightweight concrete wallboard and a preparation method thereof. The volume of the waste foam particles is shrunk after being heated to form a cavity in the aggregate; and after the waste foam particles are melted, a layer of compact resin film is formed on the surface of the cavity, so that the unfired hollow aggregate can form a stable and relatively closed clean air layer in the lightweight concrete wallboard, and better sound insulation and heat preservation effects are achieved. The chopped fibers can enable the engineering muck, the mineral powder and the fly ash to be better and tightly combined with the waste foam particles, so that the whole body is more compact, and the strength and the crack resistance of the unfired hollow aggregate are further improved; meanwhile, the chopped fibers can form burr-shaped protrusions on the surface of the unfired hollow aggregate, floating of the unfired hollow aggregate can be inhibited in the preparation process of the lightweight concrete wallboard, and the unfired hollow aggregate is evenly distributed in the lightweight concrete wallboard. The unfired hollow aggregate is of a hollow structure, so that the lightweight concrete wallboard has low surface density.
本发明属于建筑材料技术领域，提供了一种免烧空心骨料及其制备方法和轻质混凝土墙板及其制备方法。废旧泡沫颗粒受热体积收缩，在骨料内部形成空腔；且废旧泡沫颗粒熔化后在空腔的表面形成一层致密的树脂膜，这可以使免烧空心骨料在轻质混凝土墙板中形成稳定的相对封闭的净空气层，起到更好的隔声及保温效果。短切纤维能够使工程渣土、矿粉和粉煤灰更好地与废旧泡沫颗粒紧密结合，使整体更致密，进而提高免烧空心骨料的强度及抗裂性能；同时，短切纤维可在免烧空心骨料表面形成毛刺状凸起，在轻质混凝土墙板制备过程中可抑制免烧空心骨料上浮，使免烧空心骨料在轻质混凝土墙板中均匀分布。免烧空心骨料为空心结构，使轻质混凝土墙板具备低面密度。
Unfired hollow aggregate and preparation method thereof as well as lightweight concrete wallboard and preparation method thereof
一种免烧空心骨料及其制备方法和轻质混凝土墙板及其制备方法
GUAN YU (Autor:in) / XIN JIBAO (Autor:in) / XIN XIAOTING (Autor:in) / HU JUNPAN (Autor:in) / HE HAOYUAN (Autor:in) / FENG JINMING (Autor:in)
05.12.2023
Patent
Elektronische Ressource
Chinesisch
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