Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
High-performance mortar capable of effectively preventing mortar cracking and preparation method
The invention discloses high-performance mortar capable of effectively preventing mortar cracking and a preparation method. The high-performance mortar comprises the following components: cement, quartz sand, a retarder, fly ash, silica fume, mineral powder, a water reducing agent and an anti-freezing agent. The retarder is prepared from modified ardealite, and the mineral powder is low-grade magnesite; according to the invention, the mortar prepared in the invention is mixed with water to form concrete, the modified ardealite and the low-grade magnesite do not react with water, and have an expansion mechanism, so that the collapse degree of the concrete can be effectively reduced, and the problem of cracking of the concrete caused by dry shrinkage can be effectively solved; in addition, the silica fume is used as a blending agent, so that the strength and corrosion resistance of the concrete can be further improved, the low-grade magnesite and the phosphogypsum both belong to solid wastes in production and have the characteristics of sufficient quantity and difficulty in treatment, and the environment can be protected while the cost is reduced by utilizing the low-grade magnesite and the phosphogypsum.
本发明公开了一种有效防止砂浆开裂的高性能砂浆及制备方法；所述高性能砂浆包括以下组分：水泥、石英砂、缓凝剂、粉煤灰、微硅粉、矿粉、减水剂、防冻剂；所述缓凝剂使用改性的磷石膏配置，所述矿粉为低品位的菱镁矿；本发明中的制备的砂浆与水混合形成混凝土，改性的磷石膏与低品位的菱镁矿均不与水反应，且具有膨胀机理，能有效降低混凝土的坍塌度及混凝土因为干缩造成开裂的问题；微硅粉作为掺和剂，能进一步提升混凝土强度与防腐蚀的性能，所述低品位的菱镁矿和磷石膏均属于生产中的固体废弃物，具有数量充足、难以处理的特点，加以利用在降低成本的同时还能保护环境。
High-performance mortar capable of effectively preventing mortar cracking and preparation method
The invention discloses high-performance mortar capable of effectively preventing mortar cracking and a preparation method. The high-performance mortar comprises the following components: cement, quartz sand, a retarder, fly ash, silica fume, mineral powder, a water reducing agent and an anti-freezing agent. The retarder is prepared from modified ardealite, and the mineral powder is low-grade magnesite; according to the invention, the mortar prepared in the invention is mixed with water to form concrete, the modified ardealite and the low-grade magnesite do not react with water, and have an expansion mechanism, so that the collapse degree of the concrete can be effectively reduced, and the problem of cracking of the concrete caused by dry shrinkage can be effectively solved; in addition, the silica fume is used as a blending agent, so that the strength and corrosion resistance of the concrete can be further improved, the low-grade magnesite and the phosphogypsum both belong to solid wastes in production and have the characteristics of sufficient quantity and difficulty in treatment, and the environment can be protected while the cost is reduced by utilizing the low-grade magnesite and the phosphogypsum.
本发明公开了一种有效防止砂浆开裂的高性能砂浆及制备方法；所述高性能砂浆包括以下组分：水泥、石英砂、缓凝剂、粉煤灰、微硅粉、矿粉、减水剂、防冻剂；所述缓凝剂使用改性的磷石膏配置，所述矿粉为低品位的菱镁矿；本发明中的制备的砂浆与水混合形成混凝土，改性的磷石膏与低品位的菱镁矿均不与水反应，且具有膨胀机理，能有效降低混凝土的坍塌度及混凝土因为干缩造成开裂的问题；微硅粉作为掺和剂，能进一步提升混凝土强度与防腐蚀的性能，所述低品位的菱镁矿和磷石膏均属于生产中的固体废弃物，具有数量充足、难以处理的特点，加以利用在降低成本的同时还能保护环境。
High-performance mortar capable of effectively preventing mortar cracking and preparation method
一种有效防止砂浆开裂的高性能砂浆及制备方法
ZHUANG PING (Autor:in) / ZHUANG YUNMING (Autor:in) / LIN AIPING (Autor:in) / WANG WUJUN (Autor:in)
03.12.2021
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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