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The influence of isothermal treatments on microstructure, hardness, and tensile properties of a new designed medium carbon super-bainitic steel was studied by using the optical microscopy, scanning electron microscopy, transmission electron microscopy, X-ray diffraction, and mechanical property tests. The results show that the isothermal transformation temperature and holding time combine to determine...
Polybutadiene-graft-polystyrene (PB-g-PS) latex with a weight ratio of 50/50 was used to modify cement mortar. This study examines the effects of silicon fume content and the polymer-cement ratios (P/C) on the flow, compressive and flexural strength and water absorption rate of PB-g-PS latex modified cement mortar. The experimental results show that the flow of modified mortar is increased with increasing...
The PB-g-PS latex was used to modify cement mortar, and the weight ratios of polybutadiene to styrene ranged from 70/30, 50/50 to 30/70. In the constant water-cement ratio of 0.5, and curing 24h at 20°C, RH90% air followed by 27d at 20°Cwater. This study examines the effects of weight ratios polybutadiene to styrene and the polymer-cement ratios on the flow, compressive and flexural strength and water...
Polybutadiene-graft-polystyrene (PB-g-PS) latex with a core-shell weight ratio of 50/50 was used to modify cement mortar. In the constant water-cement ratio of 0.5, and curing 24h at 20 °C, RH90% air followed using two curing methods (6d immersed in 20°C water followed by 21d at 20°C, RH 65%air or 27d at 20°Cwater). At the different polymer-cement weight ratios (P/C), polymer-modified mortars (PMMs)...
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