Key Points to Know When Conducting Chimney Repair Work!

Key Points to Know When Conducting Chimney Repair Work!

Chimney corrosion maintenance temperature significantly affects the performance indicators of water glass materials, particularly their resistance to water and dilute acid. In engineering practice, there are two situations where materials are not resistant to water or dilute acid: one is due to the quality of raw materials and inappropriate mixing ratios, which lead to destruction upon contact with water or dilute acid, regardless of whether it's early or late in the construction process; the other occurs during the hydrolysis reaction between water glass and curing agents, when the unreacted parts of the water glass materials are still reacting and hardening. These parts dissolve and are damaged upon contact with water. Therefore, a reasonable mixing ratio and an appropriate increase in maintenance temperature, especially during the early curing stage, create favorable conditions for the full reaction between water glass and curing agents. This significantly enhances their mechanical strength and resistance to water and dilute acid damage.
Chimney repair construction requires understanding the following key points:
1. "Inspection": Primarily review management records, certified personnel, on-site signage, handover acceptance documents, "Three Treasures" usage, protection conditions at openings and edges, as well as equipment safety devices.
"Volume": Primarily measured by actual physical measurements with a ruler.
"3. 'Measurement': Conducting real-time measurements using instruments and gauges."
"Field Operation": Drivers perform actual actions on various limiting devices to test their responsiveness. Construction sites must be clean and tidy, with ventilation measures in place for chimney repair projects, and the content of harmful gases must not exceed the specified requirements. Flammable materials, except for paint used in chimney corrosion prevention, are strictly prohibited from being stored on the construction site. In other words, pay attention to environmental safety and keep the site clean.
5. During the three-dimensional intersection operation of engineering work, isolation and protective sheds should be set up between the upper and lower working surfaces. Protective measures should be taken for all types of tensioned steel wire ropes, pulley devices, pipes, cables, and equipment.
The analysis of reasons for chimney corrosion should consider various influencing factors before repairing and preventing corrosion. Carefully study the causes of corrosion, whether it has stabilized, and if it is still in a developing process, estimate the final state of the corrosion development. Current status survey of corrosion (type and width); presence of diseases (leakage, reinforcement rusting); process and timing of corrosion occurrence; review of construction records; inspection of component strength and thickness based on concrete core drilling; load investigation; neutralization test; reinforcement survey (location, number of fine bars, and presence of rust); foundation investigation; concrete analysis; load tests; vibration tests.