A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Production process of ultra-durable building concrete
The invention discloses a production process of ultra-durable building concrete, and belongs to the technical field of concrete. The production process comprises the following steps: (1) taking water accounting for 50-60% of the total weight of the used water, and mixing the water with water glass and aggregate to obtain a mixture A; (2) mixing cement with powder to obtain a mixture B; (3) adding the mixture B into the mixture A, then adding the rest of water, steel fiber and a high-efficiency water reducing agent, and mixing to obtain a mixture C; and (4) equipping a vacuum-pumping system for a stirrer, stirring the mixture C, and vacuumizing the stirrer to remove bubbles and improve the compactness to obtain the concrete. In the concrete curing process, the water glass can form alkali metal silicate and SiO2 gel in the aggregate and on the surface of the aggregate, so that the porosity of the concrete can be effectively reduced, and the combination of the concrete is tighter. The problem that a large amount of air is separated out from gaps of the aggregate in the concrete solidification process at present, resulting in adverse effects on the durability of the concrete is solved.
本发明公开了一种超耐久建筑用混凝土的生产工艺，属于混凝土技术领域，包括步骤：1)取占所用水总重量50％‑60％的水，与水玻璃和骨料混合，得混合物A；2)将水泥与粉料混合，得混合物B；3)向混合物A中加入混合物B中，再加入剩余量的水、钢纤维和高效减水剂混合，获得混合物C；4)搅拌机配备抽真空系统，将混合物C搅拌的同时，对搅拌机内抽真空除去气泡，提高密实度，获得混凝土。在混凝土固化的过程中，水玻璃能够在骨料内部及表面形成碱金属硅酸盐及SiO2凝胶，能有效降低混凝土的孔隙率，使混凝土的结合更紧密。解决了目前骨料本身具有的空隙在混凝土凝固过程中的析出大量空气，对混凝土的耐久性造成不利影响的问题。
Production process of ultra-durable building concrete
The invention discloses a production process of ultra-durable building concrete, and belongs to the technical field of concrete. The production process comprises the following steps: (1) taking water accounting for 50-60% of the total weight of the used water, and mixing the water with water glass and aggregate to obtain a mixture A; (2) mixing cement with powder to obtain a mixture B; (3) adding the mixture B into the mixture A, then adding the rest of water, steel fiber and a high-efficiency water reducing agent, and mixing to obtain a mixture C; and (4) equipping a vacuum-pumping system for a stirrer, stirring the mixture C, and vacuumizing the stirrer to remove bubbles and improve the compactness to obtain the concrete. In the concrete curing process, the water glass can form alkali metal silicate and SiO2 gel in the aggregate and on the surface of the aggregate, so that the porosity of the concrete can be effectively reduced, and the combination of the concrete is tighter. The problem that a large amount of air is separated out from gaps of the aggregate in the concrete solidification process at present, resulting in adverse effects on the durability of the concrete is solved.
本发明公开了一种超耐久建筑用混凝土的生产工艺，属于混凝土技术领域，包括步骤：1)取占所用水总重量50％‑60％的水，与水玻璃和骨料混合，得混合物A；2)将水泥与粉料混合，得混合物B；3)向混合物A中加入混合物B中，再加入剩余量的水、钢纤维和高效减水剂混合，获得混合物C；4)搅拌机配备抽真空系统，将混合物C搅拌的同时，对搅拌机内抽真空除去气泡，提高密实度，获得混凝土。在混凝土固化的过程中，水玻璃能够在骨料内部及表面形成碱金属硅酸盐及SiO2凝胶，能有效降低混凝土的孔隙率，使混凝土的结合更紧密。解决了目前骨料本身具有的空隙在混凝土凝固过程中的析出大量空气，对混凝土的耐久性造成不利影响的问题。
Production process of ultra-durable building concrete
一种超耐久建筑用混凝土的生产工艺
LIU YUEJUN (author) / LIU YUECHAO (author) / HU KE (author) / LIU JUNFU (author)
2021-12-03
Patent
Electronic Resource
Chinese
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