The problem existed in many supervision and test for the thickness of protection layer for steel bar in engineering structure body are approached and some suggestion are proposed in this paper.

本文结合对大量工程结构实体钢筋保护层厚度的监督检测，对开展这项工作中存在的一些问题进行探讨，并提出了一些建议。

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Wear resistant floor is the most economical and practical ground protection measures, but it can only be cast in concrete production, cast-in-place layer thickness requires more than 5cm.

耐磨地坪是目前最经济实用的地面防护措施，但它只能在现浇混凝土上制作，现浇层的厚度需要5 cm以上。

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3 selection should preferred coated thin fire retardant coatings, the selection of thickness of coating type paint, exterior to do decorative surface layer vibration protection.

3选用时宜优先选用薄涂型防火涂料，选用厚涂型涂料时，其外需做装饰面层隔护。

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