Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
The invention discloses high-toughness wear-resistant concrete and a preparation method thereof, and relates to the technical field of constructional engineering. The concrete comprises a cementing material, aggregate, an additive and micro-steel fibers. The preparation method comprises the following steps of: mixing the aggregate and the cementing material, stirring for 1-2 minutes at the rotating speed of 800-1000 r/min, adding 90% of water, adding a retarder, continuing to stir for 1-2 minutes at the rotating speed of 600-800 r/min, adding a water reducing agent and the rest of water, continuing to stir for 3-5 minutes at the rotating speed of 500-600 r/min, then adding the micro-steel fibers, continuously stirring for 5 minutes, and discharging. The micro-steel fibers are added into the concrete base material, and the doping size of the micro-steel fibers is controlled, so that the toughness of the concrete is greatly improved on the basis of ensuring the strength of the concrete and comprehensively considering the construction convenience, and the defect of high brittleness of the concrete is overcome.
本发明公开了一种高韧性耐磨混凝土及其制备方法，涉及建筑工程技术领域；该混凝土包括胶凝材料、骨料、外加剂和微钢纤维，该制备方法包括，将骨料和胶凝材料混合，在800‑1000r/min的转速下搅拌1‑2min，随后加入90％的水，在将缓凝剂加入，在600‑800r/min的转速下，继续搅拌1‑2min，加入减水剂和剩余的水，在500‑600r/min的条件下，继续搅拌3‑5min，随后加入微钢纤维，持续搅拌5min后，出料即可。本发明混凝土基料内加入了微钢纤维，并对微钢纤维的掺入尺寸进行控制，可在保证混凝土强度的同时，综合对施工便捷考虑的基础上，大大提高了混凝土的韧性，改善其高脆性缺点。
The invention discloses high-toughness wear-resistant concrete and a preparation method thereof, and relates to the technical field of constructional engineering. The concrete comprises a cementing material, aggregate, an additive and micro-steel fibers. The preparation method comprises the following steps of: mixing the aggregate and the cementing material, stirring for 1-2 minutes at the rotating speed of 800-1000 r/min, adding 90% of water, adding a retarder, continuing to stir for 1-2 minutes at the rotating speed of 600-800 r/min, adding a water reducing agent and the rest of water, continuing to stir for 3-5 minutes at the rotating speed of 500-600 r/min, then adding the micro-steel fibers, continuously stirring for 5 minutes, and discharging. The micro-steel fibers are added into the concrete base material, and the doping size of the micro-steel fibers is controlled, so that the toughness of the concrete is greatly improved on the basis of ensuring the strength of the concrete and comprehensively considering the construction convenience, and the defect of high brittleness of the concrete is overcome.
本发明公开了一种高韧性耐磨混凝土及其制备方法，涉及建筑工程技术领域；该混凝土包括胶凝材料、骨料、外加剂和微钢纤维，该制备方法包括，将骨料和胶凝材料混合，在800‑1000r/min的转速下搅拌1‑2min，随后加入90％的水，在将缓凝剂加入，在600‑800r/min的转速下，继续搅拌1‑2min，加入减水剂和剩余的水，在500‑600r/min的条件下，继续搅拌3‑5min，随后加入微钢纤维，持续搅拌5min后，出料即可。本发明混凝土基料内加入了微钢纤维，并对微钢纤维的掺入尺寸进行控制，可在保证混凝土强度的同时，综合对施工便捷考虑的基础上，大大提高了混凝土的韧性，改善其高脆性缺点。
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