Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Graphite tailing thermal insulation concrete block and preparation method thereof
The invention relates to the technical field of composite materials, and discloses a graphite tailing thermal insulation concrete block and a preparation method thereof. The graphite tailing thermal insulation concrete block is prepared from 55-65 parts of graphite tailings, 35-45 parts of an inorganic cementing material, 0.01-0.07 part of a water repellent agent and 0.50-0.90 part of a drag reducer through mixing, stirring, vibratory compression, stacking, standing, laminating and curing. The polycarboxylic high-performance drag reducer is added, due to the adsorption effect of the drag reducer, the surface charge distribution and steric hindrance effect of tricalcium aluminate and tricalcium silicate particles in cement are changed, and the acting force among the cement particles is changed, so that the viscosity in a material stirring and mold entering cavity is reduced, and exhaust filling is facilitated due to particle dispersion; and secondly, due to the addition of the drag reducer, a proper small amount of wetting water among particles can be kept during stirring, and the phenomenon that the bottom surface of the thermal insulation concrete block is moist and discharges water is avoided.
本发明公开了一种石墨尾渣保温混凝土砌块及其制备方法，涉及复合材料技术领域，所述石墨尾渣保温混凝土砌块由55～65份石墨尾渣，35～45份无机胶凝材料、0.01～0.07份抗水剂和0.50～0.90份减阻剂经混合、搅拌、振动压型、码垛、静停、覆膜、养护制备而成。本发明中加入聚羧酸系高性能减阻剂，由于减阻剂吸附作用，改变水泥中铝酸三钙、硅酸三钙颗粒表面电荷分布、空间位阻效应，水泥颗粒之间的作用力发生变化，导致在物料搅拌和入模腔内黏度减小，颗粒分散利于排气填充；其次由于减阻剂的加入，搅拌时颗粒间的润湿水可适量较少，避免了保温混凝土砌块底面潮湿出水现象。
Graphite tailing thermal insulation concrete block and preparation method thereof
The invention relates to the technical field of composite materials, and discloses a graphite tailing thermal insulation concrete block and a preparation method thereof. The graphite tailing thermal insulation concrete block is prepared from 55-65 parts of graphite tailings, 35-45 parts of an inorganic cementing material, 0.01-0.07 part of a water repellent agent and 0.50-0.90 part of a drag reducer through mixing, stirring, vibratory compression, stacking, standing, laminating and curing. The polycarboxylic high-performance drag reducer is added, due to the adsorption effect of the drag reducer, the surface charge distribution and steric hindrance effect of tricalcium aluminate and tricalcium silicate particles in cement are changed, and the acting force among the cement particles is changed, so that the viscosity in a material stirring and mold entering cavity is reduced, and exhaust filling is facilitated due to particle dispersion; and secondly, due to the addition of the drag reducer, a proper small amount of wetting water among particles can be kept during stirring, and the phenomenon that the bottom surface of the thermal insulation concrete block is moist and discharges water is avoided.
本发明公开了一种石墨尾渣保温混凝土砌块及其制备方法，涉及复合材料技术领域，所述石墨尾渣保温混凝土砌块由55～65份石墨尾渣，35～45份无机胶凝材料、0.01～0.07份抗水剂和0.50～0.90份减阻剂经混合、搅拌、振动压型、码垛、静停、覆膜、养护制备而成。本发明中加入聚羧酸系高性能减阻剂，由于减阻剂吸附作用，改变水泥中铝酸三钙、硅酸三钙颗粒表面电荷分布、空间位阻效应，水泥颗粒之间的作用力发生变化，导致在物料搅拌和入模腔内黏度减小，颗粒分散利于排气填充；其次由于减阻剂的加入，搅拌时颗粒间的润湿水可适量较少，避免了保温混凝土砌块底面潮湿出水现象。
Graphite tailing thermal insulation concrete block and preparation method thereof
一种石墨尾渣保温混凝土砌块及其制备方法
NIE CHUANKAI (Autor:in) / LI XIANGZU (Autor:in) / WANG JIANG (Autor:in) / LYU HONGBO (Autor:in)
26.06.2020
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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