Civil Engineering June 2021 | Vol 29 No 5

Call us for more info: 010 823 5550 www.sika.co.za REPAIR AND PROTECTION Sika® MonoTop®-4400 MIC Sika MonoTop®-4400 MIC is a 1-part, ready to use, high performance, calcium aluminate mortar specifically designed for the repair and protection of new or existing sewer infrastructure from biogenic sulphuric acid corrosion. ■ Resistant to biogenic sulphuric acid corrosion ■ Resistant to pure water, salt water, sulphated soils and several diluted acids ■ Does not contain chlorides or other corrosion promoting additives ■ Suitable for machine application (wet and dry spray technique) ■ High bond strength ■ High early compressive strength, class R4 of EN 1504-3 ■ Fast return to service (within 1 hour if Sikagard®-230 MIC surface hardener is used)