Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Toughened concrete and preparation method thereof
The invention discloses toughened concrete and a preparation method thereof, and relates to the technical field of concrete.The toughened concrete is prepared from, by weight, 100 parts of cement paste, 170-250 parts of coarse and fine aggregate, 0.04-0.06 part of graphene oxide, 2-8 parts of calcium carbonate whiskers and 0.01-0.15 part of L-(+) tartaric acid; the water-binder ratio of the cement paste is 0.25 to 0.45. The graphene oxide, the calcium carbonate whiskers and the L-(+) tartaric acid are doped into the cement, hydration products are regulated and controlled from a micro-nano level and the microstructure of a matrix is improved by utilizing a nano modification technology, a bridging effect of a functional microcrystalline material and a crystal regulation and control effect of a chiral material, the whole preparation process is simple, and the preparation method is suitable for industrial production. The prepared concrete can effectively improve the tension-compression ratio under the condition that the compressive strength is not reduced, and the toughness of a cement-based material is fundamentally improved.
本发明公开了一种增韧混凝土及其制备方法，涉及混凝土技术领域，包括按重量份数计的以下成分：水泥浆100份，粗细集料170‑250份，氧化石墨烯0.04‑0.06份，碳酸钙晶须2‑8份，L‑(+)酒石酸0.01‑0.15份；且水泥浆的水胶比为0.25‑0.45。本发明通过在水泥中掺入氧化石墨烯、碳酸钙晶须和L‑(+)酒石酸，利用纳米改性技术、功能性微晶材料桥接作用以及手性材料的晶体调控作用，从微纳观层次调控水化产物并改善基体的微结构，且整个制备过程简单，制得的混凝土能够在不降低抗压强度的情况下，有效提高了拉压比，在根本上提高水泥基材料的韧性。
Toughened concrete and preparation method thereof
The invention discloses toughened concrete and a preparation method thereof, and relates to the technical field of concrete.The toughened concrete is prepared from, by weight, 100 parts of cement paste, 170-250 parts of coarse and fine aggregate, 0.04-0.06 part of graphene oxide, 2-8 parts of calcium carbonate whiskers and 0.01-0.15 part of L-(+) tartaric acid; the water-binder ratio of the cement paste is 0.25 to 0.45. The graphene oxide, the calcium carbonate whiskers and the L-(+) tartaric acid are doped into the cement, hydration products are regulated and controlled from a micro-nano level and the microstructure of a matrix is improved by utilizing a nano modification technology, a bridging effect of a functional microcrystalline material and a crystal regulation and control effect of a chiral material, the whole preparation process is simple, and the preparation method is suitable for industrial production. The prepared concrete can effectively improve the tension-compression ratio under the condition that the compressive strength is not reduced, and the toughness of a cement-based material is fundamentally improved.
本发明公开了一种增韧混凝土及其制备方法，涉及混凝土技术领域，包括按重量份数计的以下成分：水泥浆100份，粗细集料170‑250份，氧化石墨烯0.04‑0.06份，碳酸钙晶须2‑8份，L‑(+)酒石酸0.01‑0.15份；且水泥浆的水胶比为0.25‑0.45。本发明通过在水泥中掺入氧化石墨烯、碳酸钙晶须和L‑(+)酒石酸，利用纳米改性技术、功能性微晶材料桥接作用以及手性材料的晶体调控作用，从微纳观层次调控水化产物并改善基体的微结构，且整个制备过程简单，制得的混凝土能够在不降低抗压强度的情况下，有效提高了拉压比，在根本上提高水泥基材料的韧性。
Toughened concrete and preparation method thereof
一种增韧混凝土及其制备方法
WANG YUE (Autor:in) / YU PEIYAO (Autor:in) / AN MINGZHE (Autor:in) / ZHAO SIYI (Autor:in) / YU ZIRUO (Autor:in) / LEE YANG-SOON (Autor:in)
11.10.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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