Research on optimization of chloride ion content detection methods and quality control for construction sand
建筑用砂氯离子含量检测方法优化及质量控制研究

摘要

建筑用砂中氯离子含量超标会引发钢筋锈蚀，直接威胁建筑结构耐久性与安全性。检测方法的精准性与质量控制的有效性，是把控砂料氯离子含量的核心环节。当前检测手段存在操作繁琐、耗时较长、精度不足等问题，通过优化样品前处理工艺、改进检测仪器参数、建立快速筛查模型等方式，可提升检测效率与准确性。同时，结合源头管控、过程监测与结果溯源的全链条质量控制体系，能从根本上降低氯离子超标风险。这一研究为建筑用砂质量监管提供了技术支撑，对保障工程结构安全具有重要现实意义。

Abstract

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.