Abstract
The influence of the superplasticizer Sikament 92 on the hydration process of white cement paste and freezing behavior of hardened white cement was investigated by 1H spin-lattice relaxation and Single Point Imaging (SPI) methods. The study shows that this superplasticizer extends the workability of the cement paste by about 5 h and significantly increases the hydration rate when compared with pure sample. The pore structures in hardened cement were studied by MRI and demonstrate that Sikament 92 lowers the porosity and increases resistance to freezing.
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