Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Machine-made sand high-durability bare concrete and preparation method thereof
The invention discloses machine-made sand high-durability bare concrete and a preparation method thereof. Each cubic meter of concrete is prepared from the following materials: 280 to 340kg of cement, 740 to 900kg of machine-made sand, 670 to 900kg of broken stone I, 0 to 170kg of broken stone II, 20 to 80kg of fly ash, 10 to 30kg of silicon powder, 0 to 130kg of stone powder, 40 to 50kg of water-quenched iron slag powder, 5 to 9kg of water reducing agent, 1.5 to 2kg of basalt fiber chopped sand and 140 to 160kg of water. The particle size of the broken stone I is 10-20mm, and the particle size of the broken stone II is 5-10mm. The preparation method comprises the following steps: putting the other components except the water reducing agent and the water into a stirrer, carrying out dry stirring for 2 minutes, then adding the water and the water reducing agent, and stirring for 1-2 minutes. The concrete provided by the invention has good durability and crack resistance, and also has good compressive strength, breaking strength and impact resistance.
本发明公开了一种机制砂高耐久清水混凝土及其制备方法，每方混凝土的材料组成如下：水泥280～340kg、机制砂740～900kg、碎石Ⅰ670～900kg、碎石Ⅱ0～170kg、粉煤灰20～80kg、硅粉10～30kg、石粉0～130kg、水淬铁渣粉40～50kg、减水剂5～9kg、玄武岩纤维短切砂1.5～2kg、水140～160kg；所述碎石Ⅰ的粒径为：10～20mm，碎石Ⅱ的粒径为：5～10mm，制备方法为：除减水剂和水以外的其余组分投入搅拌机进行干拌2min，然后再加入水和减水剂搅拌1～2min。本发明的混凝土具有良好的耐久性和抗裂能力，同时也具备较好的抗压强度、抗折强度、抗冲击性能。
Machine-made sand high-durability bare concrete and preparation method thereof
The invention discloses machine-made sand high-durability bare concrete and a preparation method thereof. Each cubic meter of concrete is prepared from the following materials: 280 to 340kg of cement, 740 to 900kg of machine-made sand, 670 to 900kg of broken stone I, 0 to 170kg of broken stone II, 20 to 80kg of fly ash, 10 to 30kg of silicon powder, 0 to 130kg of stone powder, 40 to 50kg of water-quenched iron slag powder, 5 to 9kg of water reducing agent, 1.5 to 2kg of basalt fiber chopped sand and 140 to 160kg of water. The particle size of the broken stone I is 10-20mm, and the particle size of the broken stone II is 5-10mm. The preparation method comprises the following steps: putting the other components except the water reducing agent and the water into a stirrer, carrying out dry stirring for 2 minutes, then adding the water and the water reducing agent, and stirring for 1-2 minutes. The concrete provided by the invention has good durability and crack resistance, and also has good compressive strength, breaking strength and impact resistance.
本发明公开了一种机制砂高耐久清水混凝土及其制备方法，每方混凝土的材料组成如下：水泥280～340kg、机制砂740～900kg、碎石Ⅰ670～900kg、碎石Ⅱ0～170kg、粉煤灰20～80kg、硅粉10～30kg、石粉0～130kg、水淬铁渣粉40～50kg、减水剂5～9kg、玄武岩纤维短切砂1.5～2kg、水140～160kg；所述碎石Ⅰ的粒径为：10～20mm，碎石Ⅱ的粒径为：5～10mm，制备方法为：除减水剂和水以外的其余组分投入搅拌机进行干拌2min，然后再加入水和减水剂搅拌1～2min。本发明的混凝土具有良好的耐久性和抗裂能力，同时也具备较好的抗压强度、抗折强度、抗冲击性能。
Machine-made sand high-durability bare concrete and preparation method thereof
一种机制砂高耐久清水混凝土及其制备方法
WU LIAO (Autor:in) / MEI SHILONG (Autor:in) / XIONG LAN (Autor:in)
17.01.2023
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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