Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
High-strength and high-damping concrete based on aggregate accumulation structure and preparation method of high-strength and high-damping concrete
The invention relates to high-strength and high-damping concrete based on an aggregate accumulation structure and a preparation method. The concrete is prepared by sequentially and alternately arranging modified coarse aggregate and modified rubber particles in a layered manner and then pouring a modified cement grouting material, the modified coarse aggregate is prepared from the following raw materials in parts by mass: 1300 to 1400 parts of coarse aggregate and 1.3 to 7 parts of waterborne polyurethane emulsion; the modified rubber particles comprise the following raw materials in parts by weight: 88-220 parts of rubber particles and 4.4-33 parts of water-borne epoxy resin emulsion; the modified cement grouting material comprises the following raw materials in parts by weight: 250-320 parts of cement, 10-26 parts of silica fume, 75-130 parts of water, 5-15 parts of water-based acrylic emulsion and 2.0-5.0 parts of a water reducing agent. The particle size of the coarse aggregate is greater than that of the rubber particles. Compared with C50 common concrete, the prepared high-strength and high-damping concrete has the advantages that the strength is basically free of loss, and meanwhile, the damping ratio is greatly increased.
本发明涉及一种基于骨料堆积结构的高强高阻尼混凝土及制备方法，该混凝土是改性粗骨料和改性橡胶颗粒依次层状交替布置后再灌入改性水泥灌浆料制得的；按质量份数计，改性粗骨料的原料包括粗骨料1300～1400份，水性聚氨酯乳液1.3～7份；改性橡胶颗粒的原料包括橡胶颗粒88～220份，水性环氧树脂乳液4.4～33份；改性水泥灌浆料的原料包括水泥250～320份，硅灰10～26份，水75～130份，水性丙烯酸乳液5～15份，减水剂2.0～5.0份；粗骨料的粒径大于橡胶颗粒的粒径。本发明制备的高强高阻尼混凝土，相较于C50普通混凝土强度基本无损失，同时阻尼比大幅增加。
High-strength and high-damping concrete based on aggregate accumulation structure and preparation method of high-strength and high-damping concrete
The invention relates to high-strength and high-damping concrete based on an aggregate accumulation structure and a preparation method. The concrete is prepared by sequentially and alternately arranging modified coarse aggregate and modified rubber particles in a layered manner and then pouring a modified cement grouting material, the modified coarse aggregate is prepared from the following raw materials in parts by mass: 1300 to 1400 parts of coarse aggregate and 1.3 to 7 parts of waterborne polyurethane emulsion; the modified rubber particles comprise the following raw materials in parts by weight: 88-220 parts of rubber particles and 4.4-33 parts of water-borne epoxy resin emulsion; the modified cement grouting material comprises the following raw materials in parts by weight: 250-320 parts of cement, 10-26 parts of silica fume, 75-130 parts of water, 5-15 parts of water-based acrylic emulsion and 2.0-5.0 parts of a water reducing agent. The particle size of the coarse aggregate is greater than that of the rubber particles. Compared with C50 common concrete, the prepared high-strength and high-damping concrete has the advantages that the strength is basically free of loss, and meanwhile, the damping ratio is greatly increased.
本发明涉及一种基于骨料堆积结构的高强高阻尼混凝土及制备方法，该混凝土是改性粗骨料和改性橡胶颗粒依次层状交替布置后再灌入改性水泥灌浆料制得的；按质量份数计，改性粗骨料的原料包括粗骨料1300～1400份，水性聚氨酯乳液1.3～7份；改性橡胶颗粒的原料包括橡胶颗粒88～220份，水性环氧树脂乳液4.4～33份；改性水泥灌浆料的原料包括水泥250～320份，硅灰10～26份，水75～130份，水性丙烯酸乳液5～15份，减水剂2.0～5.0份；粗骨料的粒径大于橡胶颗粒的粒径。本发明制备的高强高阻尼混凝土，相较于C50普通混凝土强度基本无损失，同时阻尼比大幅增加。
High-strength and high-damping concrete based on aggregate accumulation structure and preparation method of high-strength and high-damping concrete
一种基于骨料堆积结构的高强高阻尼混凝土及制备方法
LIU YUNPENG (Autor:in) / WANG JIANTAO (Autor:in) / XU ZONGWANG (Autor:in) / WANG FAZHOU (Autor:in) / CHOU JINENG (Autor:in)
20.10.2023
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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