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道桥FYT-1路桥专用防水涂料技术要求价格

  • 品牌名称:道桥FYT-1路桥专用防水涂料技术要求价格
  • 公司名称:上海婚庆用品
  • 官方主页:暂无
  • 所在地区:上海
  • 浏览次数30
  • 更新日期:2019-04-24
品牌介绍
路桥专用防水涂料桥面防水层的技术要求:
 
  (1)桥面防水层应覆盖整个混凝土桥面,喷涂或人工涂刷桥面防水涂料两遍,防水涂膜厚度平均不超过1.2mm为宜;
 
  (2)防水层应具有良好的耐久性,至少应有不低于桥面沥青铺装层使用年限的寿命(约8~10年)。并能适应高架桥动荷载抗压,抗拉的特点,当混凝土桥面板开裂≤2mm时,防水涂膜变形仍应满足不拉裂的需要,以保证防水要求;
 
  (3)在环境条件-15℃--90℃范围内,仍能满足第 2条的要求。同时,在经受沥青层摊铺温度约160℃后,不影响其长期耐久使用性时。防水涂层与其上沥青混凝土铺装层应有相融性,二者之间的粘结力不低于沥青混凝土铺装层与混凝土桥面之间的粘结力,层间抗剪强度25℃,≥1.5MPa,35℃≥1.0MPa;
 
  (4)防水涂层对混凝土桥面板亦应具有良好的粘结性,以保证沥青铺装层粘结力的需要,并在粗糙桥面板上具有良好的密贴性。防水层粘结后不得夹有空气层;
 
  (5)防水层抗渗要求应在0.3MPa以上;
 
  (6)防水施工应便于操作,满足大桥工期安排的要求。
 施工单位应该重视防水施工堵漏的重要性。
 
路桥专用防水涂料桥梁工程是运输系统中重要的一环,由于桥梁工程的运行环境较为潮湿,因此在桥梁工程中经常会出现渗水漏水的现象,从而影响了桥梁工程的质量,例如渗水会对桥梁的钢材腐蚀,从而影响了桥梁整体的强度。同时渗透水进入到混凝土结构中,会直接破坏混凝土结构,从而降低了桥梁的施工年限。因此桥梁的防水堵漏工作至关重要,直接关系着桥梁工程的质量,施工工艺:
 
  
 
  
 
  (1)基层清理:喷涂桥面防水涂料前,首先清除油污,垃圾等,然后彻底清扫基面,再用吹尘器或者高压水枪把基面清理干净。
 
  (2)喷涂桥面防水涂料:喷涂桥面防水涂料,不宜一遍过厚,涂量约2kg/㎡,干燥时间依环境温度和厚度而定热季一般6—8小时,如需要铺设胎体增强材料时,胎体增强材料宜铺平,浸透并用毛刷排除空气,使其与涂料粘结牢固。
 
 
  Construction units should attach importance to the importance of plugging in waterproofing works.
 
  1. The special waterproof coating bridge engineering is an important link in the transportation system. Because the operating environment of the bridge engineering is humid, water leakage often occurs in the bridge engineering, which affects the quality of the bridge engineering, for example, water leakage will corrode the steel of the bridge, thus affecting the whole bridge. Strength. At the same time, the seepage water into the concrete structure will directly destroy the concrete structure, thus reducing the construction life of the bridge. Therefore, the waterproof and leak stoppage work of the bridge is very important, directly related to the quality of the bridge project, construction technology:
 
 
 
  (1) Grass-roots cleaning: before spraying waterproof coating on bridge deck, first remove oil, garbage, etc., and then thoroughly clean the base, then use a dust blower or high-pressure water gun to clean the base.
 
  (2) Spraying waterproof coating for bridge deck: spraying waterproof coating for bridge deck should not be too thick once, the amount of coating is about 2 kg /, drying time depends on the ambient temperature and thickness of the hot season is generally 6-8 hours, if need to lay matrix reinforcement, matrix reinforcement material should be laid flat, soak and use brush to remove air, so that it can bond firmly with the coating. .
 
  Two. Technical requirements for special waterproof coatings in Luqiao:
 
  It not only conforms to the standard of building materials industry JC/T975 - 2005, but also accords with the standard of transportation industry JT/T535 - 2004.
 
  Three. Technical requirements for Luqiao special waterproofing coating bridge deck waterproofing layer:
 
  (1) Bridge deck waterproof layer should cover the whole concrete bridge deck, spray or brush the bridge deck waterproof coating twice, the average thickness of waterproof coating should not exceed 1.2 mm;
 
  (2) The waterproof layer should have good durability, at least not less than the service life of the bridge deck asphalt pavement (about 8-10 years). And can adapt to the dynamic load of viaduct compression, tensile characteristics, when the concrete deck cracking < 2 mm, waterproof coating deformation should still meet the need of non-cracking to ensure waterproof requirements;
 
  (3) at the ambient temperature of -15 C --90 C, it can still meet second requirements. At the same time, after the asphalt paving temperature is about 160 C, it will not affect its long-term durability. The waterproof coating should be compatible with the asphalt concrete pavement. The bonding force between the two layers is not lower than that between the asphalt concrete pavement and the concrete bridge deck. The shear strength between the layers is 25, > 1.5 MPa, 35 > 1.0 MPa.
 
  (4) The waterproof coating should also have good adhesion to the concrete bridge deck, so as to ensure the need of the adhesive force of the asphalt pavement, and have good tightness on the rough bridge deck. The waterproof layer should not be sandwiched with air after bonding.
 
  (5) the impervious requirements of waterproof layer should be above 0.3MPa;
 
  (6) waterproof construction should be easy to operate and meet the requirements of bridge construction schedule.
 路桥专用防水涂料技术要求:
 
  既符合《建材行业JC/T975—2005》标准,也符合《交通行业JT/T535—2004》标准.

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