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A platform for research: civil engineering, architecture and urbanism
Self-compacting concrete and preparation method thereof
The invention discloses self-compacting concrete and a preparation method thereof. The self-compacting concrete comprises the following raw materials in parts by mass: 100 parts of cement; 15-25 parts of mineral powder; 10 to 15 parts of fly ash; 50 to 70 parts of sand; 100 to 150 parts of limestone chippings; 180 to 210 parts of coarse aggregate; 2-4 parts of a polycarboxylate superplasticizer; 3-6 parts of an expanding agent; 5-10 parts of carboxyl modified polypropylene fiber; and 40-50 parts of water. The self-compacting concrete provided by the invention not only has outstanding fluidity and segregation resistance, but also has excellent elastic modulus and compactness.
本申请公开了一种自密实混凝土及其制备方法,该自密实混凝土包括如下质量份的原料：水泥100份；矿粉15～25份；粉煤灰10～15份；砂子50～70份；石灰石碎屑100～150份；粗骨料180～210份；聚羧酸减水剂2～4份；膨胀剂3～6份；羧基改性聚丙烯纤维5～10份；水40～50份。本申请的自密实混凝土不仅具有突出的流动性、抗离析性能，还兼具优异的弹性模量和密实性。
Self-compacting concrete and preparation method thereof
The invention discloses self-compacting concrete and a preparation method thereof. The self-compacting concrete comprises the following raw materials in parts by mass: 100 parts of cement; 15-25 parts of mineral powder; 10 to 15 parts of fly ash; 50 to 70 parts of sand; 100 to 150 parts of limestone chippings; 180 to 210 parts of coarse aggregate; 2-4 parts of a polycarboxylate superplasticizer; 3-6 parts of an expanding agent; 5-10 parts of carboxyl modified polypropylene fiber; and 40-50 parts of water. The self-compacting concrete provided by the invention not only has outstanding fluidity and segregation resistance, but also has excellent elastic modulus and compactness.
本申请公开了一种自密实混凝土及其制备方法,该自密实混凝土包括如下质量份的原料：水泥100份；矿粉15～25份；粉煤灰10～15份；砂子50～70份；石灰石碎屑100～150份；粗骨料180～210份；聚羧酸减水剂2～4份；膨胀剂3～6份；羧基改性聚丙烯纤维5～10份；水40～50份。本申请的自密实混凝土不仅具有突出的流动性、抗离析性能，还兼具优异的弹性模量和密实性。
Self-compacting concrete and preparation method thereof
一种自密实混凝土及其制备方法
JIN XIN (author) / ZHENG JIANFU (author) / ZHOU CHAOZHENG (author)
2024-01-26
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
| European Patent Office | 2024