| 摘要 |
FIELD: process engineering. ^ SUBSTANCE: invention relates to repair processes. It may be used for shotblasting surfaces of B5-B60-strength class concrete and reinforced concrete in repair after destructive effects of H2SO4 in corrosion of II kind (effects of sulfurous gases, say SO2, sulfuric anhydride SO3 at various temperatures and hydrogen sulphide H2S in microbiological corrosion). In surface cleaning, shots are forced at 7 atm, consumption of shots makes 9-11 kg/m2, efficiency equals 20-40 m2/h, duration of shotblasting makes 2.0-2.5 min/m2, degree of cleaning is Sa 2S-3. ^ EFFECT: higher quality of cleaning. ^ 1 dwg, 1 tbl |
