Advances in Constructional Engineering

Excessive chloride ion content in construction sand can cause steel corrosion, directly threatening the durability and safety of building structures. The accuracy of detection methods and the effectiveness of quality control are core links in controlling the chloride ion content in sand. Current detection methods have problems such as cumbersome operations, long time consumption and insufficient precision. The detection efficiency and accuracy can be improved by optimizing sample pretreatment processes, improving detection instrument parameters, and establishing rapid screening models. At the same time, combining the whole-chain quality control system of source control, process monitoring and result traceability can fundamentally reduce the risk of excessive chloride ions. This research provides technical support for the quality supervision of construction sand and has important practical significance for ensuring the safety of engineering structures.

Construction sand; Chloride ion detection; Method optimization; Quality control; Structural safety