[1M01-06] Beam Application and Neutron Facility Development

[1M01] Small-angle X-ray and neutron scattering on cement paste

*Kaoru Hara¹, Yuya Yoda², Masato Ohnuma¹ (1. Hokkaido Univ., 2. Shimizu)

Keywords:Nanoscale structure, Cement paste, Small angle X-ray scattering, Small angle neutron scattering, Compressive strength

To characterize nanoscale structures of cement paste, in-situ SAXS measurements have been conducted for cement paste samples which goes through different initial curing temperatures. SAXS measurements have been also conducted using hardened cement paste samples with different water-to-cement ratios. Based on these SAXS data, we have focused on a fine structure corresponded to a shoulder in the high-q region around 3 nm^-1 on the SAXS profiles. To obtain further information about the fine structure, a SANS measurement has been prepared using cement paste samples with light and heavy water.