公开(公告)号：US11299434B2

公开(公告)日：2022-04-12

申请号：US17049745

申请日：2019-08-01

Applicant: INNER MONGOLIA UNIVERSITY OF TECHNOLOGY

Inventor： Yong Shi ,  Jianli Dong

IPC: B28B1/08 ,  C04B40/00 ,  C04B7/00 ,  C04B7/34 ,  C04B28/00 ,  C04B32/00

Abstract: The invention discloses a special equipment and a method for surface microcrystallization of cementitious materials. The specialized equipment includes a vibrator, a vibration signal generator, a power amplifier and a vibration transmitting body. A signal output terminal of the vibration signal generator is connected to a signal input terminal of the power amplifier, a signal output terminal of the power amplifier is connected to a signal input terminal of the vibrator, the vibrator is connected to the vibration transmitting body, and the vibration transmitting body is to be in contact with the cement product after initial setting. The surface microcrystallization method for cement product: after the casting and before the final setting of the cement product, vibration is applied to its outer or inner surface, the vibration frequency is greater than or equal to 1 KHz, and the vibration time is greater than or equal to 5 minutes. The surface layer of the cement product prepared by the present invention forms a structured layer with a certain thickness, high density, low permeability and relatively uniform surface coverage of granular crystal or gel phase, so that the cement product has excellent anti-aging performance.

公开(公告)号：US12098549B2

公开(公告)日：2024-09-24

申请号：US17737668

申请日：2022-05-05

Applicant: INNER MONGOLIA UNIVERSITY OF TECHNOLOGY

Inventor： Yong Shi ,  Yongli Hou ,  Xiaoyan He ,  Yuanhong Hao

IPC: E04C5/04 ,  B33Y10/00 ,  B33Y80/00 ,  E04B5/32 ,  E04B7/20 ,  E04C3/20 ,  E04G21/02

CPC classification number: E04C5/04 ,  B33Y10/00 ,  B33Y80/00 ,  E04G21/02 ,  E04B5/32 ,  E04B7/20 ,  E04C3/20

Abstract: This technology comprises a combined accessory of an in-situ concrete 3-D printed horizontal load-bearing member and a preparation method. The combined accessory includes 3-D printed concrete and a bottom mesh, the 3-D printed concrete contains fine aggregates having the particle size of 0.08 mm-4.75 mm, and the fluidity of the 3-D printed concrete is larger than or equal to 110 mm and smaller than or equal to 190 mm; the bottom mesh is a reinforcing mesh or expanded metal, the diameter of the reinforcing bar is larger than or equal to 0.5 mm, and the mesh aperture of the reinforcing mesh is smaller than or equal to 7.5 times of an upper limit of the particle size of the fine aggregate and is larger than or equal to 7.5 times of a lower limit of the particle size of the fine aggregate.