CAJ | 학술논문

采用X射线小角散射技术，对硅粉水泥石中孔比表面积作了实验研究.研究表明：所测硅粉水泥石中孔的比表面积是相当大的，其值在70～190-m2／cm3之间；孔界面具有分形特征，分形维数与3接近，因此孔界面是非常粗糙的，比表面积与孔界面分形维数有着明显的相关性；水胶比增加比表面积减少，硅粉含量增加，比表面积增大；水泥石的抗压强度与比表面积存在较好的相关性，抗折强度与比表面积之间则呈现出一种较为复杂的关系.
채용X사선소각산사기술，대규분수니석중공비표면적작료실험연구.연구표명：소측규분수니석중공적비표면적시상당대적，기치재70～190-m2／cm3지간；공계면구유분형특정，분형유수여3접근，인차공계면시비상조조적，비표면적여공계면분형유수유착명현적상관성；수효비증가비표면적감소，규분함량증가，비표면적증대；수니석적항압강도여비표면적존재교호적상관성，항절강도여비표면적지간칙정현출일충교위복잡적관계.
An experimental study on the micropore specific surface area of silica fume cement paste is carried out by use of small angle X-ray scattering.The test results show that pore specific surface area of silica fume cement paste is very large(70～190-m2／cm3) and the pore surface is very rough, the fractal dimension is about 3,and the correlation of micropore specific surface area with fractal dimension is remarkable. The higher the silica fume content, the larger the value of pore specific surface area; the higher the ratio of water and binder, the smaller the value of pore specific surface area.The compressive strength is closely correlated with pore specific area;however, the relationship between pore specific surface area and bending strength is not clear.