Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
High-toughness concrete and preparation method thereof
The invention relates to the technical field of building materials, and provides high-toughness concrete and a preparation method thereof. The formula of the high-toughness concrete comprises nylon fibers, cement, fine aggregate, fly ash, water, a water reducing agent and a thickening agent. Compared with a traditional method, according to the method, PA fibers are selected to toughen concrete; and the preparation method comprises the steps: mixing cement, fine aggregate, fly ash, water, the water reducing agent and the thickening agent into slurry, extruding and mixing at the temperature of 5-10 DEG C higher than the glass transition temperature of the PA fibers by using a screw extruder, and dispersing the PA fibers into the concrete slurry, thereby implementing uniform dispersion of thePA fibers and preventing the fibers from being broken.
本发明涉及建筑材料技术领域，提供了一种高韧性混凝土及制备方法。该高韧性混凝土的配方包括尼龙纤维、水泥、细骨料、粉煤灰、水、减水剂、增稠剂。与传统方法相比，该方法通过选择PA纤维对混凝土进行增韧，先将水泥、细骨料、粉煤灰、水、减水剂、增稠剂拌和为料浆，再利用螺杆挤出机在高于PA纤维玻璃化温度5~10℃的温度下进行挤出混合，将PA纤维分散在混凝土料浆中，不仅实现了PA纤维的均匀分散，而且可防止纤维折断。
High-toughness concrete and preparation method thereof
The invention relates to the technical field of building materials, and provides high-toughness concrete and a preparation method thereof. The formula of the high-toughness concrete comprises nylon fibers, cement, fine aggregate, fly ash, water, a water reducing agent and a thickening agent. Compared with a traditional method, according to the method, PA fibers are selected to toughen concrete; and the preparation method comprises the steps: mixing cement, fine aggregate, fly ash, water, the water reducing agent and the thickening agent into slurry, extruding and mixing at the temperature of 5-10 DEG C higher than the glass transition temperature of the PA fibers by using a screw extruder, and dispersing the PA fibers into the concrete slurry, thereby implementing uniform dispersion of thePA fibers and preventing the fibers from being broken.
本发明涉及建筑材料技术领域，提供了一种高韧性混凝土及制备方法。该高韧性混凝土的配方包括尼龙纤维、水泥、细骨料、粉煤灰、水、减水剂、增稠剂。与传统方法相比，该方法通过选择PA纤维对混凝土进行增韧，先将水泥、细骨料、粉煤灰、水、减水剂、增稠剂拌和为料浆，再利用螺杆挤出机在高于PA纤维玻璃化温度5~10℃的温度下进行挤出混合，将PA纤维分散在混凝土料浆中，不仅实现了PA纤维的均匀分散，而且可防止纤维折断。
High-toughness concrete and preparation method thereof
一种高韧性混凝土及制备方法
ZHAO HONGWEI (Autor:in)
16.06.2020
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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