Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
High-fluidity conductive concrete and preparation method thereof
The invention relates to high-fluidity conductive concrete and a preparation method thereof. The conductive concrete is prepared from, by weight, 70-80 parts of cement, 8-15 parts of fly ash microspheres, 10-20 parts of a conductive phase, 0-1 part of a water reducing agent and 0-0.5 part of a surface modifier; the mass ratio of the aggregate to the cementing material is (3-5): 1, the sand ratio is 40%-45%, and the water-cement ratio is (0.35-0.5): 1; the preparation method comprises the following steps: uniformly mixing the conductive phase, the water reducing agent and the surface modifier in water to form a first mixture; uniformly mixing other residual raw material components to form a second mixture; and adding the first mixture into the second mixture, uniformly stirring to form fresh conductive concrete slurry, forming, curing and demolding. According to the invention, the solid waste steel slag is used for replacing part of graphite, so that the cost is reduced and the flowability of the newly mixed slurry of the conductive concrete is improved under the condition that the conductivity is not influenced, and meanwhile, the surface of the graphite is modified by using the surface modifier, so that the surface hydrophobicity and the dispersity are improved.
本发明涉及一种高流动性的导电混凝土及其制备方法，导电混凝土原料组分按重量份计，包括：水泥70‑80份、粉煤灰微珠8‑15份、导电相10‑20份、减水剂0‑1份、表面改性剂0‑0.5份；骨料和胶凝材料的质量比为(3‑5)：1，砂率为40％‑45％，水灰比为(0.35‑0.5)：1；制备方法包括步骤：将导电相、减水剂、表面改性剂放入水中混合均匀，形成第一混合物；把其他剩余原料组分混合均匀形成第二混合物；将第一混合物加入第二混合物，搅拌均匀形成新拌导电混凝土浆体，成型养护脱模即可。本发明使用固体废弃物钢渣代替部分石墨，从而在不影响导电性的情况下，降低成本，增加导电混凝土新拌浆体的流动性，同时使用表面改性剂对石墨表面改性，增加其表面疏水能力，提高其分散性。
High-fluidity conductive concrete and preparation method thereof
The invention relates to high-fluidity conductive concrete and a preparation method thereof. The conductive concrete is prepared from, by weight, 70-80 parts of cement, 8-15 parts of fly ash microspheres, 10-20 parts of a conductive phase, 0-1 part of a water reducing agent and 0-0.5 part of a surface modifier; the mass ratio of the aggregate to the cementing material is (3-5): 1, the sand ratio is 40%-45%, and the water-cement ratio is (0.35-0.5): 1; the preparation method comprises the following steps: uniformly mixing the conductive phase, the water reducing agent and the surface modifier in water to form a first mixture; uniformly mixing other residual raw material components to form a second mixture; and adding the first mixture into the second mixture, uniformly stirring to form fresh conductive concrete slurry, forming, curing and demolding. According to the invention, the solid waste steel slag is used for replacing part of graphite, so that the cost is reduced and the flowability of the newly mixed slurry of the conductive concrete is improved under the condition that the conductivity is not influenced, and meanwhile, the surface of the graphite is modified by using the surface modifier, so that the surface hydrophobicity and the dispersity are improved.
本发明涉及一种高流动性的导电混凝土及其制备方法，导电混凝土原料组分按重量份计，包括：水泥70‑80份、粉煤灰微珠8‑15份、导电相10‑20份、减水剂0‑1份、表面改性剂0‑0.5份；骨料和胶凝材料的质量比为(3‑5)：1，砂率为40％‑45％，水灰比为(0.35‑0.5)：1；制备方法包括步骤：将导电相、减水剂、表面改性剂放入水中混合均匀，形成第一混合物；把其他剩余原料组分混合均匀形成第二混合物；将第一混合物加入第二混合物，搅拌均匀形成新拌导电混凝土浆体，成型养护脱模即可。本发明使用固体废弃物钢渣代替部分石墨，从而在不影响导电性的情况下，降低成本，增加导电混凝土新拌浆体的流动性，同时使用表面改性剂对石墨表面改性，增加其表面疏水能力，提高其分散性。
High-fluidity conductive concrete and preparation method thereof
一种高流动性的导电混凝土及其制备方法
WANG QIANG (Autor:in) / CUI YONG (Autor:in) / WANG DENGQUAN (Autor:in) / ZHOU YUQI (Autor:in)
23.07.2021
Patent
Elektronische Ressource
Chinesisch
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