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发明公开
CN109796167A 一种高韧性混凝土原料选择方法 无效 - 驳回

一种高韧性混凝土原料选择方法
摘要：
本发明公开了一种高韧性混凝土原料选择方法，包括胶凝材料选择的步骤；细集料选择的步骤；粗集料选择的步骤；聚合物选择的步骤；纤维选择的步骤；减水剂选择的步骤。本发明高韧性混凝土原料选择方法利用荷载—位移曲线下包围的面积大小来衡量混凝土的弯曲韧性，聚合物乳液按照一定的聚灰比加入混凝土后，弯曲韧性提升6.5倍以上，其中苯乙烯－丙烯酸酯共聚物加入混凝土中，其弯曲韧性提升17.6倍；纤维按照一定体积掺量加入混凝土后，弯曲韧性提升8倍以上，其中端钩型钢纤维0.8％加入混凝土后，其弯曲韧性提升24.1倍；将聚合物和纤维按照一定比例共同掺加混凝土中后，其弯曲韧性较单独加入聚合物和纤维材料又有了较大的提高。
摘要（英）：

The invention discloses a high-toughness concrete raw material selection method. The method comprises the steps of selecting a cementing material; selecting a fine aggregate; selecting a coarse aggregate; selecting a polymer; selecting a fiber; selecting a water reducing agent. The method uses a area enclosed by a load-displacement curve to measure the bending toughness of a concrete, and after apolymer emulsion is added to the concrete according to a certain poly-ash ratio, the bending toughness is increased by more than 6.5 times, wherein a styrene-acrylate copolymer is added to the concrete, and the bending toughness is increased by 17.6 times; after the fiber is added to the concrete according to a certain volume fraction, the bending toughness is increased by more than 8 times, and after 0.8% of an end hook type steel fiber is added to the concrete, the bending toughness is increased by 24.1 times; after the polymer and fiber are jointly mixed in the concrete in a certain proportion, the bending toughness is greatly improved compared with the addition of the polymer and the fiber material alone.

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