Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Copper-plated steel fiber and waste ceramic powder cooperated high-performance intelligent concrete and preparation process thereof
The invention discloses high-performance intelligent concrete prepared from copper-plated steel fibers and waste ceramic powder and a preparation process. The copper-plated steel fibers are high in bonding strength, good in conductivity and resistant to corrosion, and the toughness and the pressure-sensitive property of the concrete can be improved; the waste ceramic powder has the functions of volcanic ash and internal curing and water absorption, and can improve the cohesiveness of the copper-plated steel fiber and a matrix, thereby cooperating with the copper-plated steel fiber to improve the strength and toughness of the concrete, promoting the ionic conductivity of the concrete, and also improving the pressure-sensitive property of the concrete. The 28d breaking strength of the prepared concrete is up to 41.2 MPa, the compressive strength is 129.6 MPa, the breaking energy is 24.27 kJ/m < 2 >, and the compression work is 438 kN.mm, which are respectively increased by 108.9%, 62.1%, 1888.4% and 328.6% compared with those of a control group; and the resistivity change rate under the ultimate load is 11.79%. According to the process, the green high-strength high-toughness intelligent concrete can be obtained, and a way is provided for high-added-value utilization of waste ceramics.
本发明公开了镀铜钢纤维协同废弃陶瓷粉高性能智能混凝土及制备工艺，镀铜钢纤维粘结强度高、导电性好、耐腐蚀，可提高混凝土韧性和压敏性能；废弃陶瓷粉有火山灰、内养护作用和吸水性，可提高镀铜钢纤维与基体的粘结性，从而协同镀铜钢纤维提高混凝土强度和韧性，并促进混凝土的离子导电，亦可提高混凝土的压敏性能。制备的混凝土28d抗折强度高达41.2MPa，抗压强度129.6MPa，断裂能24.27kJ/m2，压缩功438kN·mm，比对照组分别增加108.9％，62.1％，1888.4％和328.6％；极限荷载下电阻率变化率为11.79％。本工艺可获得绿色高强高韧智能混凝土，为废弃陶瓷高附加值利用提供了途径。
Copper-plated steel fiber and waste ceramic powder cooperated high-performance intelligent concrete and preparation process thereof
The invention discloses high-performance intelligent concrete prepared from copper-plated steel fibers and waste ceramic powder and a preparation process. The copper-plated steel fibers are high in bonding strength, good in conductivity and resistant to corrosion, and the toughness and the pressure-sensitive property of the concrete can be improved; the waste ceramic powder has the functions of volcanic ash and internal curing and water absorption, and can improve the cohesiveness of the copper-plated steel fiber and a matrix, thereby cooperating with the copper-plated steel fiber to improve the strength and toughness of the concrete, promoting the ionic conductivity of the concrete, and also improving the pressure-sensitive property of the concrete. The 28d breaking strength of the prepared concrete is up to 41.2 MPa, the compressive strength is 129.6 MPa, the breaking energy is 24.27 kJ/m < 2 >, and the compression work is 438 kN.mm, which are respectively increased by 108.9%, 62.1%, 1888.4% and 328.6% compared with those of a control group; and the resistivity change rate under the ultimate load is 11.79%. According to the process, the green high-strength high-toughness intelligent concrete can be obtained, and a way is provided for high-added-value utilization of waste ceramics.
本发明公开了镀铜钢纤维协同废弃陶瓷粉高性能智能混凝土及制备工艺，镀铜钢纤维粘结强度高、导电性好、耐腐蚀，可提高混凝土韧性和压敏性能；废弃陶瓷粉有火山灰、内养护作用和吸水性，可提高镀铜钢纤维与基体的粘结性，从而协同镀铜钢纤维提高混凝土强度和韧性，并促进混凝土的离子导电，亦可提高混凝土的压敏性能。制备的混凝土28d抗折强度高达41.2MPa，抗压强度129.6MPa，断裂能24.27kJ/m2，压缩功438kN·mm，比对照组分别增加108.9％，62.1％，1888.4％和328.6％；极限荷载下电阻率变化率为11.79％。本工艺可获得绿色高强高韧智能混凝土，为废弃陶瓷高附加值利用提供了途径。
Copper-plated steel fiber and waste ceramic powder cooperated high-performance intelligent concrete and preparation process thereof
镀铜钢纤维协同废弃陶瓷粉高性能智能混凝土及制备工艺
ZHANG LIQING (Autor:in) / BIAN MINGQIANG (Autor:in) / GONG LIANGYONG (Autor:in) / WEI LUOFEI (Autor:in) / PAN YANNIAN (Autor:in) / XIONG JINGANG (Autor:in) / XIONG XINFU (Autor:in)
19.12.2023
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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