A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Ultra-high performance concrete well lid and preparation method thereof
The invention relates to the technical field of manhole covers, in particular to an ultra-high-performance concrete manhole cover and a preparation method thereof.The ultra-high-performance concrete manhole cover is characterized in that the surface of ultra-high molecular weight polyethylene fiber is subjected to chromic acid oxidation etching treatment and then coated with dopamine, and the effect of improving the mechanical property of concrete can be achieved; the modified ultra-high molecular weight polyethylene fiber can have higher shear strength, and the mechanical property of concrete can be improved by adding the modified ultra-high molecular weight polyethylene fiber into the concrete; the waste iron tailings, steel slag and high titanium slag are recycled, the cost in the preparation process of the ultra-high performance concrete well lid can be reduced, and the environment-friendly effect is achieved to a certain extent; the twisted steel bars in the well lid are arranged at the intervals of 8-10 cm, the mechanical property of the ultra-high-performance concrete well lid can be improved to a certain degree, the thickness of the ultra-high-performance concrete well lid is 7-8 cm, and the use amount of well lid materials can be reduced on the basis that the mechanical property of the well lid is kept.
本发明涉及检查井盖技术领域，具体涉及一种超高性能混凝土井盖及其制备方法，本发明将超高分子量聚乙烯纤维表面经铬酸氧化刻蚀处理后再被多巴胺包覆，能够起到改善混凝土力学性能的作用，改性后的超高分子量聚乙烯纤维能够具有更高的剪切强度，将其加入混凝土中能够提高混凝土的力学性能；本发明对废弃的铁尾矿、钢渣和高钛矿渣进行重复利用，能够降低超高性能混凝土井盖制备过程中的成本，并且在一定程度上起到环保的效果；本发明中以8‑10cm的间距对井盖中的螺纹钢筋进行排布，能够在一定程度上提高超高性能混凝土井盖的力学性能，而且本发明中超高性能混凝土井盖的厚度为7‑8cm，能够在保持井盖力学性能的基础上减少井盖材料的用量。
Ultra-high performance concrete well lid and preparation method thereof
The invention relates to the technical field of manhole covers, in particular to an ultra-high-performance concrete manhole cover and a preparation method thereof.The ultra-high-performance concrete manhole cover is characterized in that the surface of ultra-high molecular weight polyethylene fiber is subjected to chromic acid oxidation etching treatment and then coated with dopamine, and the effect of improving the mechanical property of concrete can be achieved; the modified ultra-high molecular weight polyethylene fiber can have higher shear strength, and the mechanical property of concrete can be improved by adding the modified ultra-high molecular weight polyethylene fiber into the concrete; the waste iron tailings, steel slag and high titanium slag are recycled, the cost in the preparation process of the ultra-high performance concrete well lid can be reduced, and the environment-friendly effect is achieved to a certain extent; the twisted steel bars in the well lid are arranged at the intervals of 8-10 cm, the mechanical property of the ultra-high-performance concrete well lid can be improved to a certain degree, the thickness of the ultra-high-performance concrete well lid is 7-8 cm, and the use amount of well lid materials can be reduced on the basis that the mechanical property of the well lid is kept.
本发明涉及检查井盖技术领域，具体涉及一种超高性能混凝土井盖及其制备方法，本发明将超高分子量聚乙烯纤维表面经铬酸氧化刻蚀处理后再被多巴胺包覆，能够起到改善混凝土力学性能的作用，改性后的超高分子量聚乙烯纤维能够具有更高的剪切强度，将其加入混凝土中能够提高混凝土的力学性能；本发明对废弃的铁尾矿、钢渣和高钛矿渣进行重复利用，能够降低超高性能混凝土井盖制备过程中的成本，并且在一定程度上起到环保的效果；本发明中以8‑10cm的间距对井盖中的螺纹钢筋进行排布，能够在一定程度上提高超高性能混凝土井盖的力学性能，而且本发明中超高性能混凝土井盖的厚度为7‑8cm，能够在保持井盖力学性能的基础上减少井盖材料的用量。
Ultra-high performance concrete well lid and preparation method thereof
一种超高性能混凝土井盖及其制备方法
LYU MINGHAO (author) / GONG YIWEI (author) / CHEN QINDONG (author) / LIU GUANSHENG (author) / ZHAN GUOLIANG (author) / WANG HUI (author) / CHEN JIE (author) / GUO WUGUANG (author) / CHEN ZELING (author) / LIN DONG (author)
2023-12-12
Patent
Electronic Resource
Chinese
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