公开(公告)号：US20220314491A1

公开(公告)日：2022-10-06

申请号：US17365296

申请日：2021-07-01

Applicant: Anhui University of Science and Technology

Inventor： Liang Wang ,  Zhiqiang Liu ,  Hao Wang ,  Wenfeng Shen ,  Ying Xu ,  Yubiao Wei ,  Fan Yang

IPC: B28C5/12 ,  B28C5/00 ,  B28C7/00

Abstract: Methods for modifying a recycled fine powder of concrete and uses thereof. A method for modifying a recycled fine powder can include: crushing a collected waste concrete block step by step with a crusher, grinding with a ball mill, and passing through a 100-mesh sieve, to obtain a recycled fine powder with d50 of 13.5 μm; placing the obtained recycled fine powder in a dry environment at a high temperature, drying, then taking out, and cooling to room temperature; preparing tannic acid solutions with different concentrations, mixing the cooled recycled fine powder with the prepared tannic acid solutions, and continuously stirring by a glass rod.

公开(公告)号：US11780116B2

公开(公告)日：2023-10-10

申请号：US17365296

申请日：2021-07-01

Applicant: Anhui University of Science and Technology

Inventor： Liang Wang ,  Zhiqiang Liu ,  Hao Wang ,  Wenfeng Shen ,  Ying Xu ,  Yubiao Wei ,  Fan Yang

IPC: B28C5/00 ,  B28C7/00 ,  B28C5/12

CPC classification number: B28C5/12 ,  B28C5/003 ,  B28C7/0007

Abstract: Methods for modifying a recycled fine powder of concrete and uses thereof. A method for modifying a recycled fine powder can include: crushing a collected waste concrete block with a crusher, grinding with a ball mill, and passing through a 100-mesh sieve, to obtain a recycled fine powder with d50 of 13.5 μm; placing the obtained recycled fine powder in a dry environment at a high temperature, drying, then taking out, and cooling to room temperature; preparing tannic acid solutions with different concentrations, mixing the cooled recycled fine powder with the prepared tannic acid solutions, and continuously stirring by a glass rod.