Shrinkage reducing admixture
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The reduction in flexural strength and compressive strength at 28 days is 14% and 25%, respectively at 7% SRA dosage. In addition, SRA significantly reduces the drying shrinkage and water absorption of mortar. At 7% SRA dosage, the drying shrinkage at 53 days is reduced by 60% while the water absorption rate at 24 hours is reduced by 54%. However, SRA has a minor effect on the pore size distribution, effective porosity, and cumulative intrusion volume of mortar.
13p inception36 30-11-2021 14 1 Download
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That is suitable for the restoration of concrete structures in general and hydraulic structures in particular of Vietnam. The dry mixed mortar is manufactured and in bag of 15±0.5 kg weight. Keywords: dry mixed cement mortar, compressive strength, shrinkage, flexural strength, adhesion, watertightness, high range water reducing admixture (HRWR), polymer acrylic.
13p thienthanquydu 21-10-2018 36 1 Download