摘要
硬化后混凝土材料具有细观、微观多孔隙特征,即使配制良好的高性能混凝土,也含有微孔隙和微裂纹。混凝土内部孔隙率及孔径分布对混凝土材料的性质有重要影响,如强度、变形、容重、导热性、吸水性、抗渗性及耐久性等;而矿物掺合料可改变混凝土内部孔隙的分布,从而影响混凝土的性能;因此,对混凝土材料内部孔隙的研究也是混凝土微观研究的一个重要方面。
Sclerous concrete materials possess the characteristics of imperceptibility,microcosmic and more micro-pores,even excellent high-performance cement possess so.The rate of concrete micro-pores and the distributing of pore-diameter have an important influence on the property of concrete materials,such as intensity,distortion,transmitting-heat property,absorbing water property,resisting-penetrability and durability etc..The mineral admixtures can change the distributing of the micro-pores of concrete and effect the property of concrete.Therefore,to research the micro-pores of concrete materials has also an important aspect on the microcosmic study of concrete.
出处
《混凝土》
CAS
CSCD
2004年第3期36-39,共4页
Concrete
关键词
孔隙
水泥浆
锂盐渣
粉煤灰
micro-pores
cement paste
lithium-salt residue (LSR)
fly ash
