Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Anti-crack dry-mixed mortar taking Yellow River sand as raw material and preparation process of anti-crack dry-mixed mortar
The invention relates to preparation of dry-mixed mortar, in particular to anti-crack dry-mixed mortar with Yellow River sand as a raw material and a preparation process of the anti-crack dry-mixed mortar. The invention discloses anti-crack dry-mixed mortar taking Yellow River sand as a raw material and a preparation process thereof. The preparation process comprises the following steps: performing interface enhancement treatment on the Yellow River sand; carrying out surface modification on the glass fiber; preparing the polypropylene composite fiber; preparing polymer latex powder; and preparing the anti-cracking dry-mixed mortar. The glass fiber is adopted as a reinforcement body, the polypropylene composite fiber is prepared through direct granulation melt spinning, the crack resistance of the dry-mixed mortar can be improved, the glass fiber is introduced into polypropylene, so that the composite fiber is uniformly arranged, the glass fiber can bear part of stress when stressed, and the crack resistance of the dry-mixed mortar is improved. The impact resistance and toughness of the polypropylene fiber can be improved, the brittle failure characteristic of the dry-mixed mortar can be improved by adding the reinforced polypropylene fiber into the dry-mixed mortar, cracks generated by plastic shrinkage of the mortar are reduced, and thus the crack resistance of the dry-mixed mortar is improved.
本发明涉及干粉砂浆制备，具体涉及一种以黄河砂为原料的抗裂干粉砂浆及其制备工艺。一种以黄河砂为原料的抗裂干粉砂浆及其制备工艺，包括以下步骤：黄河砂的界面增强处理；玻璃纤维的表面改性；聚丙烯复合纤维的制备；聚合物乳胶粉的制备；抗裂干粉砂浆的配置。本发明采用玻璃纤维为增强体，通过直接造粒熔纺制得聚丙烯复合纤维，能够提高干粉砂浆的抗裂性能，通过将玻璃纤维引入聚丙烯中，使复合纤维排布均匀，在受力时玻璃纤维会承受部分的应力，能够提高强聚丙烯纤维的抗冲击性能和韧性，将增强后的聚丙烯纤维加入到干粉砂浆中，能够改善干粉砂浆的脆性破坏特性，减少砂浆塑性收缩产生的裂缝，从而提高干粉砂浆的抗裂性。
Anti-crack dry-mixed mortar taking Yellow River sand as raw material and preparation process of anti-crack dry-mixed mortar
The invention relates to preparation of dry-mixed mortar, in particular to anti-crack dry-mixed mortar with Yellow River sand as a raw material and a preparation process of the anti-crack dry-mixed mortar. The invention discloses anti-crack dry-mixed mortar taking Yellow River sand as a raw material and a preparation process thereof. The preparation process comprises the following steps: performing interface enhancement treatment on the Yellow River sand; carrying out surface modification on the glass fiber; preparing the polypropylene composite fiber; preparing polymer latex powder; and preparing the anti-cracking dry-mixed mortar. The glass fiber is adopted as a reinforcement body, the polypropylene composite fiber is prepared through direct granulation melt spinning, the crack resistance of the dry-mixed mortar can be improved, the glass fiber is introduced into polypropylene, so that the composite fiber is uniformly arranged, the glass fiber can bear part of stress when stressed, and the crack resistance of the dry-mixed mortar is improved. The impact resistance and toughness of the polypropylene fiber can be improved, the brittle failure characteristic of the dry-mixed mortar can be improved by adding the reinforced polypropylene fiber into the dry-mixed mortar, cracks generated by plastic shrinkage of the mortar are reduced, and thus the crack resistance of the dry-mixed mortar is improved.
本发明涉及干粉砂浆制备，具体涉及一种以黄河砂为原料的抗裂干粉砂浆及其制备工艺。一种以黄河砂为原料的抗裂干粉砂浆及其制备工艺，包括以下步骤：黄河砂的界面增强处理；玻璃纤维的表面改性；聚丙烯复合纤维的制备；聚合物乳胶粉的制备；抗裂干粉砂浆的配置。本发明采用玻璃纤维为增强体，通过直接造粒熔纺制得聚丙烯复合纤维，能够提高干粉砂浆的抗裂性能，通过将玻璃纤维引入聚丙烯中，使复合纤维排布均匀，在受力时玻璃纤维会承受部分的应力，能够提高强聚丙烯纤维的抗冲击性能和韧性，将增强后的聚丙烯纤维加入到干粉砂浆中，能够改善干粉砂浆的脆性破坏特性，减少砂浆塑性收缩产生的裂缝，从而提高干粉砂浆的抗裂性。
Anti-crack dry-mixed mortar taking Yellow River sand as raw material and preparation process of anti-crack dry-mixed mortar
一种以黄河砂为原料的抗裂干粉砂浆及其制备工艺
LI XIANG (Autor:in) / HUANG YONG (Autor:in)
19.01.2024
Patent
Elektronische Ressource
Chinesisch
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