Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
C60 self-compacting concrete doped with admixture and preparation method of C60 self-compacting concrete
The invention relates to the field of building materials, in particular to admixture-doped C60 self-compacting concrete and a preparation method thereof. The technical key points are as follows: the concrete comprises the following components in percentage by mass: 16-19% of cement, 2-4% of a viscosity reducer, 2-4% of slag powder, 1-2% of silica fume, 30-35% of fine aggregate, 37-40% of coarse aggregate, 6-8% of water and 0.2-0.3% of a polycarboxylate superplasticizer. Wherein the fine aggregate is mixed sand containing machine-made sand and natural river sand; the mixing amount of the machine-made sand is jointly determined by the particle size distribution of the machine-made sand and the particle size distribution of the natural river sand. According to the self-compacting concrete provided by the invention, part of natural sand is replaced by the artificial sand, so that the problem of insufficient natural river sand can be solved, natural resources are protected, the cost can be saved, and according to the blending ratio of the artificial sand to the natural sand, the mechanical properties such as compressive strength and fluidity of the self-compacting concrete are greatly improved.
本发明涉及建筑材料领域，具体涉及一种掺加掺合料的C60自密实混凝土及其制备方法。其技术要点如下：根据质量百分比计算，包括如下组分：水泥16~19%，降粘剂2~4%，矿渣粉2~4%，硅灰1~2%，细骨料30~35%，粗骨料37~40%，水6~8%和聚羧酸减水剂0.2~0.3%；其中，细骨料为包含机制砂与天然河砂的混合砂；机制砂的掺量由机制砂的粒径分布和天然河砂的粒径分布共同确定。本发明提供的自密实混凝土中将人工砂替代部分天然砂，不仅可以解决天然河砂不足的问题，保护自然资源，而且可以节约成本，而且根据人工砂与天然砂之间的掺合比例后，自密实混凝土的抗压强度、流动性等力学性大幅提高。
C60 self-compacting concrete doped with admixture and preparation method of C60 self-compacting concrete
The invention relates to the field of building materials, in particular to admixture-doped C60 self-compacting concrete and a preparation method thereof. The technical key points are as follows: the concrete comprises the following components in percentage by mass: 16-19% of cement, 2-4% of a viscosity reducer, 2-4% of slag powder, 1-2% of silica fume, 30-35% of fine aggregate, 37-40% of coarse aggregate, 6-8% of water and 0.2-0.3% of a polycarboxylate superplasticizer. Wherein the fine aggregate is mixed sand containing machine-made sand and natural river sand; the mixing amount of the machine-made sand is jointly determined by the particle size distribution of the machine-made sand and the particle size distribution of the natural river sand. According to the self-compacting concrete provided by the invention, part of natural sand is replaced by the artificial sand, so that the problem of insufficient natural river sand can be solved, natural resources are protected, the cost can be saved, and according to the blending ratio of the artificial sand to the natural sand, the mechanical properties such as compressive strength and fluidity of the self-compacting concrete are greatly improved.
本发明涉及建筑材料领域，具体涉及一种掺加掺合料的C60自密实混凝土及其制备方法。其技术要点如下：根据质量百分比计算，包括如下组分：水泥16~19%，降粘剂2~4%，矿渣粉2~4%，硅灰1~2%，细骨料30~35%，粗骨料37~40%，水6~8%和聚羧酸减水剂0.2~0.3%；其中，细骨料为包含机制砂与天然河砂的混合砂；机制砂的掺量由机制砂的粒径分布和天然河砂的粒径分布共同确定。本发明提供的自密实混凝土中将人工砂替代部分天然砂，不仅可以解决天然河砂不足的问题，保护自然资源，而且可以节约成本，而且根据人工砂与天然砂之间的掺合比例后，自密实混凝土的抗压强度、流动性等力学性大幅提高。
C60 self-compacting concrete doped with admixture and preparation method of C60 self-compacting concrete
一种掺加掺合料的C60自密实混凝土及其制备方法
LIU XIAOFAN (Autor:in) / ZHANG JINQIU (Autor:in) / CHEN LEI (Autor:in) / CHANG HAINING (Autor:in) / XIE FANGCHEN (Autor:in) / RAN MAOLUN (Autor:in) / ZHANG LI (Autor:in) / MUNEE (Autor:in) / WEI CHIYUAN (Autor:in) / WANG CHANGLIN (Autor:in)
29.08.2023
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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