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- W2380667741 abstract "To uncover the property of deformation of filling layer concrete used in high speed railway slab ballastless track,the factors which affect the deformation of filling layer concrete were studied.The results show that early curing can reduce the drying-shrinkage of concrete obviously,the drying-shrinkage value of concrete with early curing is 15% lower than that without early curing.Fineness modulus of sand has a slightly effect on drying-shrinkage of concrete.The influence of maximum size of aggregate on autogeneous shrinkage is higher than drying-shrinkage.The autogeneous shrinkage value increased 5% to 25% when the maximum size of aggregate reduced from 20 mm to 10 mm.The content of binding material also had an obvious effect on both drying-shrinkage and autogeneous shrinkage.Both the values of drying-shrinkage and autogeneous shrinkage increased 10% to 20% when the content of binding material increased 20 kg.The autogeneous shrinkage value can be 50% of drying-shrinkage value at early age(90 d),and can reach 74% of drying-shrinkage value at long age(210 d)." @default.
- W2380667741 created "2016-06-24" @default.
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- W2380667741 date "2011-01-01" @default.
- W2380667741 modified "2023-09-27" @default.
- W2380667741 title "Research on property of deformation of filling layer concrete used in high speed railway slab ballastless track" @default.
- W2380667741 hasPublicationYear "2011" @default.
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