A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
The invention discloses a high-impermeability concrete pumping agent and a preparation method thereof, and belongs to the field of building material manufacturing. Ardealite and fly ash are subjectedto grinding occlusion, so the frictional resistance is enhanced in the grinding process; and added sodium bentonite and sodium polyacrylate can also play a thickening role, so the compactness of a space structure is improved, the loss of the collapse degree of concrete is reduced, and the durability of the concrete after application is improved. Organic substances and inorganic substances act on each other, and under the action of water, the water enters gaps through diffusion or water seepage channels to form compact insoluble crystals, so the impermeability is improved, and the structural compactness of the concrete is improved; and Si-OH structural units react with calcium and magnesium ions contained in the concrete to form a complex, so the concrete is inerted to a certain degree, andthe durability is improved. The concrete pumping agent provided by the invention solves the problems of poor impermeability and durability and incapability of reducing concrete slump loss of a current common concrete pumping agent.
本发明公开了一种高抗渗混凝土泵送剂及其制备方法，属于建筑材料制造领域。本发明以磷石膏和粉煤灰进行研磨咬合，研磨过程中增强了摩阻力，添加的钠基膨润土、聚丙烯酸钠也可起到增稠作用，改善空间结构的致密性，降低混凝土坍塌度的损失，提升应用后混凝土的耐久性。通过有机物质和无机物质相作用，在水的作用下通过扩散或通过渗水通道进入空隙中，形成致密的不溶性晶体，提升抗渗性能，提高混凝土结构致密性，并通过Si‑OH结构单元与混凝土所含钙镁离子发生反应，形成了络合物，使得混凝土发生一定程度的惰性化，提高耐久性。本发明解决了目前常用混凝土泵送剂的抗渗、耐久性不佳，不能降低混凝土坍落度损失的问题。
The invention discloses a high-impermeability concrete pumping agent and a preparation method thereof, and belongs to the field of building material manufacturing. Ardealite and fly ash are subjectedto grinding occlusion, so the frictional resistance is enhanced in the grinding process; and added sodium bentonite and sodium polyacrylate can also play a thickening role, so the compactness of a space structure is improved, the loss of the collapse degree of concrete is reduced, and the durability of the concrete after application is improved. Organic substances and inorganic substances act on each other, and under the action of water, the water enters gaps through diffusion or water seepage channels to form compact insoluble crystals, so the impermeability is improved, and the structural compactness of the concrete is improved; and Si-OH structural units react with calcium and magnesium ions contained in the concrete to form a complex, so the concrete is inerted to a certain degree, andthe durability is improved. The concrete pumping agent provided by the invention solves the problems of poor impermeability and durability and incapability of reducing concrete slump loss of a current common concrete pumping agent.
本发明公开了一种高抗渗混凝土泵送剂及其制备方法，属于建筑材料制造领域。本发明以磷石膏和粉煤灰进行研磨咬合，研磨过程中增强了摩阻力，添加的钠基膨润土、聚丙烯酸钠也可起到增稠作用，改善空间结构的致密性，降低混凝土坍塌度的损失，提升应用后混凝土的耐久性。通过有机物质和无机物质相作用，在水的作用下通过扩散或通过渗水通道进入空隙中，形成致密的不溶性晶体，提升抗渗性能，提高混凝土结构致密性，并通过Si‑OH结构单元与混凝土所含钙镁离子发生反应，形成了络合物，使得混凝土发生一定程度的惰性化，提高耐久性。本发明解决了目前常用混凝土泵送剂的抗渗、耐久性不佳，不能降低混凝土坍落度损失的问题。
High-impermeability concrete and preparation method thereof
| European Patent Office | 2024
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