公开(公告)号：US20230117517A1

公开(公告)日：2023-04-20

申请号：US17943548

申请日：2022-09-13

Applicant: Worcester Polytechnic Institute

Inventor： Nima Rahbar ,  Suzanne F. Scarlata ,  Shuai Wang

IPC: C04B26/02 ,  C04B14/06 ,  C04B24/14 ,  C04B14/30

Abstract: Materials and methods for a rapid and effective way to create a carbon negative self-healing construction material are described. The construction material uses sand aggregates, a trace amount of catalyst, a small dosage of scaffolding material with a crosslinking agent, and a calcium source. The curing is performed at a high temperature for a short period or at room temperature for a long period. The catalyst-driven method to bridge the sand particles results in a dense, stiff, strong, and tough structural material, which upon exposure to calcium source and CO2 heals itself repeatably.