GB/T 26537-2011 in English
VALIDSteel fiber reinforced concrete manhole cover
- Issued on:2011-06-16
- Implemented on:2012-04-01
- File Format:PDF
- Delivery:Via email within 1~3 business days
$243.00
本标准规定了钢纤维混凝土检查井盖的术语和定义、产品分类、等级和标记、原材料及构造要求、技术要求、试验方法、检验规则、标志、产品合格证、贮存和运输。
本标准适用于机场停机坪、港口码头、城市道路、公路、机动车辆可能行驶或停放的地下设施检查井用的钢纤维混凝土检查井盖,也适用于绿化带等非机动车辆行驶或停放的通道、场地检查井用的钢纤维混凝土检查井盖。
Introduction
In-depth interpretation of GB26537-2011 national standard for steel fiber reinforced concrete manhole covers
1. Background of standard formulation and analysis of technological evolution
Steel fiber reinforced concrete manhole covers are an important part of urban infrastructure construction, and their performance directly affects the safety of roads, airports and ports. The formulation of GB26537-2011 aims to regulate the production and application of products and ensure their stability and reliability under various traffic pressures.
2. Comparison of standard frames
| Standard dimensions | GB26537-2011 | Comparison with old standards |
|---|---|---|
| Product categories | Circular, rectangular, graded by bearing capacity (A15-F900) | New ribbed and pan-shaped designs |
| Technical requirements | Compressive strength, bearing capacity, steel hoop thickness, etc. | Added steel fiber concrete mix ratio requirements |
| Test methods | Crack load and failure load test | Detailed test standards for different levels |
3. Implementation suggestions
Material selection:Give priority to cement that complies with GB175 and steel bars that comply with GB1499.2 to ensure concrete strength.
Construction and installation:Install in accordance with standard size deviation requirements to ensure good fit between the manhole cover and the manhole seat.
Quality inspection:Strictly implement factory inspection and type inspection processes, especially in severely cold areas, additional antifreeze performance tests are required.
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