Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
The invention relates to the technical field of concrete preparation, and particularly discloses high-fluidity concrete and a preparation method thereof. The high-fluidity concrete comprises the following components in parts by weight: 280-400 parts of cement, 60-100 parts of fly ash, 50-110 parts of slag powder, 20-38 parts of silica fume, 670-840 parts of medium sand, 840-880 parts of broken stone, 150-170 parts of water, 12-24 parts of an additive, 4-8 parts of an excitant and 2-4 parts of ammonium salt micro powder. The preparation method comprises the following steps: step 1, mixing the cement, the fly ash, the slag powder, the silica fume, the medium sand, the gravels and the water in corresponding parts by weight, and uniformly stirring to obtain premixed concrete; and 2, mixing theammonium salt micro-powder, the admixture and the excitant with corresponding parts by weight with the premixed concrete, and uniformly stirring to obtain the high-fluidity concrete. The high-fluidity concrete disclosed by the invention can be used for structural parts which are difficult to vibrate or cannot be vibrated in field construction, and has the advantages of good fluidity and stable working performance.
本申请涉及混凝土制备的技术领域，具体公开了一种高流动性混凝土及其制备方法。一种高流动性混凝土包括如下重量份数的组分：水泥280‑400份、粉煤灰60‑100份、矿渣粉50‑110份、硅灰20‑38份、中砂670‑840份、碎石840‑880份、水150‑170份、外加剂12‑24份、激发剂4‑8份、铵盐微粉2‑4份；其制备方法为：步骤一，将相应重量份数的水泥、粉煤灰、矿渣粉、硅灰、中砂、碎石和水混合，搅拌均匀得到预拌混凝土；步骤二，将相应重量份数的铵盐微粉、外加剂和激发剂与预拌混凝土混合，搅拌均匀得到高流动性混凝土。本申请的高流动性混凝土可用于现场施工中难以振捣或无法振捣的结构部位，其具有流动性好，工作性能稳定的优点。
The invention relates to the technical field of concrete preparation, and particularly discloses high-fluidity concrete and a preparation method thereof. The high-fluidity concrete comprises the following components in parts by weight: 280-400 parts of cement, 60-100 parts of fly ash, 50-110 parts of slag powder, 20-38 parts of silica fume, 670-840 parts of medium sand, 840-880 parts of broken stone, 150-170 parts of water, 12-24 parts of an additive, 4-8 parts of an excitant and 2-4 parts of ammonium salt micro powder. The preparation method comprises the following steps: step 1, mixing the cement, the fly ash, the slag powder, the silica fume, the medium sand, the gravels and the water in corresponding parts by weight, and uniformly stirring to obtain premixed concrete; and 2, mixing theammonium salt micro-powder, the admixture and the excitant with corresponding parts by weight with the premixed concrete, and uniformly stirring to obtain the high-fluidity concrete. The high-fluidity concrete disclosed by the invention can be used for structural parts which are difficult to vibrate or cannot be vibrated in field construction, and has the advantages of good fluidity and stable working performance.
本申请涉及混凝土制备的技术领域，具体公开了一种高流动性混凝土及其制备方法。一种高流动性混凝土包括如下重量份数的组分：水泥280‑400份、粉煤灰60‑100份、矿渣粉50‑110份、硅灰20‑38份、中砂670‑840份、碎石840‑880份、水150‑170份、外加剂12‑24份、激发剂4‑8份、铵盐微粉2‑4份；其制备方法为：步骤一，将相应重量份数的水泥、粉煤灰、矿渣粉、硅灰、中砂、碎石和水混合，搅拌均匀得到预拌混凝土；步骤二，将相应重量份数的铵盐微粉、外加剂和激发剂与预拌混凝土混合，搅拌均匀得到高流动性混凝土。本申请的高流动性混凝土可用于现场施工中难以振捣或无法振捣的结构部位，其具有流动性好，工作性能稳定的优点。
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