建筑工程材料见证取样规范指南 - 确保施工质量的关键步骤
在建筑工程中，材料见证取样是确保施工质量的重要环节。 规范的取样程序能够有效控制工程质量，避免因材料问题导致的工程隐患。 本文将详细介绍各类工程材料的见证取样要求。
In construction projects, material sampling is a crucial step to ensure quality. Standardized sampling procedures can effectively control project quality and prevent potential issues caused by material problems. This article details the sampling requirements for various construction materials.
混凝土取样要求 | Concrete Sampling Requirements
1. 结构砼抗压强度试块： 每≤100盘或100立方米同配合比的砼，取样≥1次（一组3块）；上海规定多层建筑每层不得少于1组。
1. Structural concrete compressive strength samples: Take ≥1 sample (3 pieces per group) for every ≤100 batches or 100m³ of concrete with the same mix ratio. Shanghai requires at least 1 group per floor for multi-story buildings.
防水材料取样 | Waterproof Material Sampling
16. 防水涂料： 同一规格品种牌号，每10吨取样一组（2Kg）；双组份的每组份各5吨取样一组。
16. Waterproof coatings: Take 1 sample (2kg) for every 10 tons of the same specification and brand; for two-component materials, take 1 sample for every 5 tons of each component.
钢筋取样规范 | Rebar Sampling Standards
13. 热轧钢筋： 同品种同规格每60吨为1检验批，每批取样一组做2拉2弯试验。
13. Hot-rolled rebars: 60 tons of the same type and specification form one inspection batch, with one sample group for 2 tensile and 2 bending tests per batch.
节能材料取样 | Energy-saving Material Sampling
21. 建筑节能： 上海规定单位工程建筑面积小于6000平米，同一厂家同一品种的墙体节能材料，每个单位工程复试不少于1次。
21. Building energy efficiency: In Shanghai, for projects under 6,000m², the same manufacturer's wall energy-saving materials require at least 1 retest per project.
市政工程检测 | Municipal Engineering Testing
20. 市政道路检测： 沥青面层每1000 M2测1点（钻芯法）；路基压实度每1000 M2测一组（3点）。
20. Municipal road testing: Test asphalt surface at 1 point per 1,000m² (core drilling method); subgrade compaction at 1 group (3 points) per 1,000m².
专业提示： 取样时应确保样品具有代表性，严格按照规范要求的数量和频率进行取样，并做好详细的取样记录。
Professional tip: Ensure samples are representative, strictly follow required quantities and frequencies, and maintain detailed sampling records.
本文内容仅供参考，具体执行请以最新规范和地方标准为准。如有任何工程材料取样问题，欢迎在评论区留言咨询。
This content is for reference only. Please refer to the latest standards and local regulations for implementation. For any material sampling questions, feel free to comment below.
