The main technical content includes: general principles, terminology, basic regulations, inspection and inspection, investigation and diagnosis, maintenance and protection, concrete crack repair, concrete and deformation joint leakage repair, concrete freeze-thaw damage repair, reinforced concrete corrosion damage repair, structural parts Damage repair, etc.
T/CECS 686-2020 history
2020T/CECS 686-2020 Specification of structure maintenance for water supply and waste water engineering