同济大学学报（自然科学版）2024，Vol.52Issue(7)：1000-1008,9.DOI:10.11908/j.issn.0253-374x.23414
新型低碳超高韧性纤维混凝土研制与力学特性研究
Mechanical Properties of Green Ultra-High Toughness Fiber Concrete
摘要
Abstract
The green transformation of concrete is of great importance for China to achieve the dual carbon development goal,this paper,combining the principle of compact stacking with multi-level grain size of matrix components and using high dosing industrial waste ultra-fine fly ash as an important component,successfully develops a new low carbon ultrahigh toughness concrete(LC-UHTC).The results show that the ultimate tensile strain of LC-UHTC reached 6.38%,the tensile strength reaches 10.20 MPa,and the tensile strength increases by more than 60%compared with other similar materials.The tensile strength and strain energy of LC-UHTC are excellent at all stages of strain,indicating that LC-UHTC has a higher safety performance in practical application.The compressive strength of LC-UHTC reaches 84.35 MPa,which is 30%-86%higher than that of other similar materials.LC-UHTC shows comprehensive performance advantages in environmental protection,tension,toughness and compression,which can provide reference value for the green transformation of new concrete.关键词
纤维混凝土/绿色超高韧性/应变硬化/双碳目标/绿色转型Key words
fiber reinforced concrete/green ultra-high toughness/strain hardening/dual carbon goals/green transition分类
建筑与水利引用本文复制引用
蔡闽金,朱海良,万洋,朱合华,庄晓莹..新型低碳超高韧性纤维混凝土研制与力学特性研究[J].同济大学学报（自然科学版）,2024,52(7):1000-1008,9.基金项目
上海市科技创新行动(22JC1404100),国家自然科学基金项目(52278411) （22JC1404100）
