Abstract
The development of static mechanical properties of CRTS II type cement emulsified asphalt (CA) mortar was studied. The specimens were made with the fresh mortar used in Jiangxi section of HU-KUN High Speed railway. The asphalt in mortar was extracted by Trichloroethylene at different age. Then, MIP (Mercury intrusion method) and NMR (Nuclear Magnetic Resonance) were employed to analyze the pore structure of mortar, and the cement hydration was analyzed by means of TGA (Thermogravimetric Analysis). According to the results, at the age of 28 days the compressive strength and elasticity modulus had reached the value offered in standard. The mechanical properties had been increasing with the progress of age due to the cement hydration, causing the pore refinement. However, the increasing rate became quite slow after 42 days. It could found that the film formation of emulsified asphalt was relative quick and reach stable just after 7 days.
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