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A platform for research: civil engineering, architecture and urbanism
Method for preparing high-performance concrete by adopting multi-mineral admixture
The invention discloses a method for preparing high-performance concrete by using a multi-mineral admixture, which comprises the following steps: step 1, mixing and stirring a silicon ore admixture, an aluminum ore admixture, fly ash and cement to obtain an admixture; 2, mixing and stirring water and a water reducing agent, adding the admixture in the step 1, and stirring; and 3, adding the aggregate, stirring, adding nano calcium carbonate, and stirring to obtain a concrete finished product. The silicon ore admixture, the aluminum ore admixture, the fly ash and the cement in the step 1 comprise the following components in percentage by mass: 15%-25% of the silicon ore admixture, 10%-20% of the aluminum ore admixture, 15%-30% of the fly ash and 20%-60% of the cement. According to the invention, the silicon ore admixture, the aluminum ore admixture and the fly ash are doped in concrete production to replace part of cement and river sand, the silicon ore admixture has strong water absorption and improves cohesiveness, the fly ash has pozzolanic activity and improves impermeability, and the aluminum ore admixture provides crack resistance.
本发明公开了一种采用多元矿物外掺料制备高性能混凝土的方法，包括下述步骤：步骤1：将硅矿掺料、铝矿掺料、粉煤灰与水泥混合搅拌，得到掺合料；步骤2：将水和减水剂混合搅拌，将步骤1中掺合料加入搅拌；步骤3：将骨料加入搅拌，加入纳米碳酸钙，搅拌得到混凝土成品。步骤1中硅矿掺料、铝矿掺料、粉煤灰与水泥的质量百分含量组分为：硅矿掺料15％‑25％、铝矿掺料10％‑20％、粉煤灰15％‑30％、水泥20％‑60％。本发明，在混凝土生产中掺入了硅矿掺料、铝矿掺料、粉煤灰，代替了部分水泥和河砂的使用，硅矿掺料吸水性强，提升粘聚性，粉煤灰具有火山灰活性，提升抗渗性，铝矿掺料提供抗裂性能。
Method for preparing high-performance concrete by adopting multi-mineral admixture
The invention discloses a method for preparing high-performance concrete by using a multi-mineral admixture, which comprises the following steps: step 1, mixing and stirring a silicon ore admixture, an aluminum ore admixture, fly ash and cement to obtain an admixture; 2, mixing and stirring water and a water reducing agent, adding the admixture in the step 1, and stirring; and 3, adding the aggregate, stirring, adding nano calcium carbonate, and stirring to obtain a concrete finished product. The silicon ore admixture, the aluminum ore admixture, the fly ash and the cement in the step 1 comprise the following components in percentage by mass: 15%-25% of the silicon ore admixture, 10%-20% of the aluminum ore admixture, 15%-30% of the fly ash and 20%-60% of the cement. According to the invention, the silicon ore admixture, the aluminum ore admixture and the fly ash are doped in concrete production to replace part of cement and river sand, the silicon ore admixture has strong water absorption and improves cohesiveness, the fly ash has pozzolanic activity and improves impermeability, and the aluminum ore admixture provides crack resistance.
本发明公开了一种采用多元矿物外掺料制备高性能混凝土的方法，包括下述步骤：步骤1：将硅矿掺料、铝矿掺料、粉煤灰与水泥混合搅拌，得到掺合料；步骤2：将水和减水剂混合搅拌，将步骤1中掺合料加入搅拌；步骤3：将骨料加入搅拌，加入纳米碳酸钙，搅拌得到混凝土成品。步骤1中硅矿掺料、铝矿掺料、粉煤灰与水泥的质量百分含量组分为：硅矿掺料15％‑25％、铝矿掺料10％‑20％、粉煤灰15％‑30％、水泥20％‑60％。本发明，在混凝土生产中掺入了硅矿掺料、铝矿掺料、粉煤灰，代替了部分水泥和河砂的使用，硅矿掺料吸水性强，提升粘聚性，粉煤灰具有火山灰活性，提升抗渗性，铝矿掺料提供抗裂性能。
Method for preparing high-performance concrete by adopting multi-mineral admixture
一种采用多元矿物外掺料制备高性能混凝土的方法
LEE JOOYONG (author) / JIAO MIAO (author) / WU PEIJIE (author) / XIONG YOUZHI (author)
2023-06-06
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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