王 申,李保亮,曹瑞林,贾子健,张亚梅
关键词:镍铁渣混凝土;力学性能;干燥收缩;孔结构;弹性模量
Key words:Concrete with ferronickel slag; Mechanical properties; Drying shrinkage; Pore structure; Elastic modulus
期刊:2020年1期 No.285 P1-5
DOI:10.19761/j.1000-4637.2020.01.001.05
基金项目:国家自然科学基金项目(51778132);中日政府间科技合作项目(S2016G6346)
作者:王 申,李保亮,曹瑞林,贾子健,张亚梅
单位:东南大学 材料科学与工程学院、江苏省土木工程材料重点实验室,南京 211189
王申,李保亮,曹瑞林,等.镍铁渣混凝土的力学性能、干缩行为及其与浆体孔结构的关系[J].混 凝土与水泥制品,2020(1):1-5.
WANG S,LI B l,CAO R L,et al.Mechanical Properties, Drying Shrinkage and Their Relation with Pore Structure of Concrete with Ferronickel Slag[J].China Concrete and Cement Products,2020(1):1-5.
镍铁渣混凝土的力学性能、干缩行为及其与浆体孔结构的关系
Abstract: Concrete with different FNS(Ferronickel slag) contents was prepared, and its compressive strength, splitting tensile strength, elastic modulus and drying shrinkage were tested. The pore structures of the pastes with the same proportions were analyzed by mercury intrusion porosimetry (MIP). The experimental results show that the compressive strength of FNS concrete increases firstly and then decreases as the FNS replacement goes higher, which has a significant correlation with the change of pore structures. When the FNS replacement is over 20%, the development of strength of FNS concretes is slower than that of plain concrete and this difference can be compensated after 90 days’ curing. Moreover, the FNS weakens the splitting tensile strength but improves the elastic modulus of concrete. The FNS can be partly activated by steam curing, but it cannot cover the loss of strength due to the decrease in cement content. FNS concrete with an FNS content less than 20% has a smaller drying shrinkage than plain concrete, which can be attributed to the lower porosity and the higher elastic modulus of concrete.
王 申,李保亮,曹瑞林,贾子健,张亚梅
关键词:镍铁渣混凝土;力学性能;干燥收缩;孔结构;弹性模量
Key words:Concrete with ferronickel slag; Mechanical properties; Drying shrinkage; Pore structure; Elastic modulus
期刊:2020年1期 No.285 P1-5
DOI:10.19761/j.1000-4637.2020.01.001.05
基金项目:国家自然科学基金项目(51778132);中日政府间科技合作项目(S2016G6346)
作者:王 申,李保亮,曹瑞林,贾子健,张亚梅
单位:东南大学 材料科学与工程学院、江苏省土木工程材料重点实验室,南京 211189
王申,李保亮,曹瑞林,等.镍铁渣混凝土的力学性能、干缩行为及其与浆体孔结构的关系[J].混 凝土与水泥制品,2020(1):1-5.
WANG S,LI B l,CAO R L,et al.Mechanical Properties, Drying Shrinkage and Their Relation with Pore Structure of Concrete with Ferronickel Slag[J].China Concrete and Cement Products,2020(1):1-5.
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