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Low-viscosity high-durability aluminoferrite cement concrete and preparation method thereof
The invention belongs to the field of special concrete, and particularly relates to low-viscosity high-durability aluminoferrite cement concrete and a preparation method thereof. The preparation method comprises the following steps: firstly, putting the aluminoferrite cement, the steel slag powder, the viscosity-reducing modified material, 60% of a water reducing agent, fine aggregate and 70% of water into a stirrer according to a formula ratio, and rapidly stirring at a linear speed of 4-6m/s for 80-90s to prepare aluminoferrite cement mortar; 40% of the water reducing agent, 30% of water and the coarse aggregate are put into a stirrer according to the formula ratio, stirring is conducted for 50-60 s at the uniform linear speed of 1-3 m/s, and the low-viscosity and high-durability aluminoferrite cement concrete is prepared. According to the concrete disclosed by the invention, the problem of high viscosity of the concrete is solved, the erosion resistance of the cement is improved, the phenomena of discontinuous air entraining, time-dependent fracture and later bleeding and sinking of the concrete are avoided, and the durability of the concrete is improved.
本发明属于特种混凝土领域，具体涉及一种低粘度高耐久铁铝酸盐水泥混凝土及其制备方法。先将铁铝酸盐水泥、钢渣粉、降粘改性材料、60％减水剂、细骨料及70％水按配方量投入搅拌机内，以4～6m/s线速度快速搅拌80～90s，制得铁铝酸盐水泥砂浆；将40％减水剂、30％水、粗骨料按配方量投入搅拌机，以1～3m/s线速度均速搅拌50～60s，制得低粘度高耐久铁铝酸盐水泥混凝土。本发明的混凝土降低混凝土粘度大问题，提高水泥自身耐侵蚀特性，避免了引气不持续、经时破裂，混凝土后期泌水、发沉现象，提高混凝土耐久性。
Low-viscosity high-durability aluminoferrite cement concrete and preparation method thereof
The invention belongs to the field of special concrete, and particularly relates to low-viscosity high-durability aluminoferrite cement concrete and a preparation method thereof. The preparation method comprises the following steps: firstly, putting the aluminoferrite cement, the steel slag powder, the viscosity-reducing modified material, 60% of a water reducing agent, fine aggregate and 70% of water into a stirrer according to a formula ratio, and rapidly stirring at a linear speed of 4-6m/s for 80-90s to prepare aluminoferrite cement mortar; 40% of the water reducing agent, 30% of water and the coarse aggregate are put into a stirrer according to the formula ratio, stirring is conducted for 50-60 s at the uniform linear speed of 1-3 m/s, and the low-viscosity and high-durability aluminoferrite cement concrete is prepared. According to the concrete disclosed by the invention, the problem of high viscosity of the concrete is solved, the erosion resistance of the cement is improved, the phenomena of discontinuous air entraining, time-dependent fracture and later bleeding and sinking of the concrete are avoided, and the durability of the concrete is improved.
本发明属于特种混凝土领域，具体涉及一种低粘度高耐久铁铝酸盐水泥混凝土及其制备方法。先将铁铝酸盐水泥、钢渣粉、降粘改性材料、60％减水剂、细骨料及70％水按配方量投入搅拌机内，以4～6m/s线速度快速搅拌80～90s，制得铁铝酸盐水泥砂浆；将40％减水剂、30％水、粗骨料按配方量投入搅拌机，以1～3m/s线速度均速搅拌50～60s，制得低粘度高耐久铁铝酸盐水泥混凝土。本发明的混凝土降低混凝土粘度大问题，提高水泥自身耐侵蚀特性，避免了引气不持续、经时破裂，混凝土后期泌水、发沉现象，提高混凝土耐久性。
Low-viscosity high-durability aluminoferrite cement concrete and preparation method thereof
一种低粘度高耐久铁铝酸盐水泥混凝土及其制备方法
SONG FENGWEI (author) / LI CHANGCHENG (author) / ZHAO XINDA (author) / CHI CHUANGZHENG (author) / GUO DONGLI (author)
2024-01-26
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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