	US 12,330,987 B1
	Method for improving deformability of cementitious composite by using polyethylene terephthalate powder
Jiaxiang Lin, Guangzhou (CN); Ruihao Luo, Guangzhou (CN); Jiashi Wu, Guangzhou (CN); Minna Dong, Guangzhou (CN); Liuyi Liu, Guangzhou (CN); Zhiying Zhou, Guangzhou (CN); Jinghui Lyu, Guangzhou (CN); Guowei Ruan, Guangzhou (CN); and Yongchang Guo, Guangzhou (CN)
Assigned to Guangdong University of Technology, Guangzhou (CN)
Filed by Guangdong University of Technology, Guangzhou (CN)
Filed on Jan. 14, 2025, as Appl. No. 19/019,920.
Claims priority of application No. 202410086778.2 (CN), filed on Jan. 22, 2024.
Int. Cl. C04B 16/06 (2006.01); C04B 7/02 (2006.01); C04B 14/06 (2006.01); C04B 18/08 (2006.01); C04B 24/32 (2006.01); C04B 28/04 (2006.01); C04B 40/00 (2006.01); C04B 103/30 (2006.01); C04B 103/32 (2006.01); C04B 103/44 (2006.01); C04B 103/50 (2006.01)

CPC C04B 16/0625 (2013.01) [C04B 7/02 (2013.01); C04B 14/06 (2013.01); C04B 18/08 (2013.01); C04B 24/32 (2013.01); C04B 28/04 (2013.01); C04B 40/0046 (2013.01); C04B 2103/302 (2013.01); C04B 2103/32 (2013.01); C04B 2103/44 (2013.01); C04B 2103/50 (2013.01); C04B 2201/20 (2013.01); C04B 2201/50 (2013.01)]

6 Claims

1. A cementitious composite based on PET powder, wherein quartz powder aggregate in the cementitious composite is replaced with the PET powder at a volume replacement ratio of 10-20%;

wherein the cementitious composite based on the PET powder consists of following raw materials in terms of unit volume mass:

cement 936.7 kg/m³;

fly ash 401.4 kg/m³;

quartz powder 301.1-401.4 kg/m³;

PET powder 0-52.3 kg/m³;

water 335.1 kg/m³;

water reducer 5.4 kg/m³;

PE fiber 19.4 kg/m³;

thickener 0.54 kg/m³; and

defoamer 2.01 kg/m³,

wherein a dosage of the PET powder is not 0 kg/m³; particle size grades of the PET powder and the aggregate are same; and particle sizes of the quartz powder and the PET powder are 20-310 μm.