沥青防水卷材施工过程控制 |
添加时间:2018/12/19 16:08:17 浏览次数: |
材料准备
stores reserve
1.油毡:一般采用不低于350 号的石油沥青纸胎油毡,对抗裂性和耐久性要求较高的卷材屋面防水层。可采用500 号沥青防水卷材;也可选用石油沥青麻布油毡、沥青玻璃布油毡,再生胶防水卷材。
1. asphalt felt: generally used asphalt asphalt felt not less than 350, which is a waterproof roofing material with high resistance to cracking and durability. No. 500 asphalt waterproofing membrane can be used. Asphalt, linen felt, asphalt glass cloth felt and reclaimed rubber waterproof roll can also be used.
2.沥青胶结材料:用一种或两种标号的建筑石油沥青时,一定按施工要求的配合比重量进行熔合,经熬制脱水后,方可作为胶结材料。
2. bitumen cementing material: when building petroleum bitumen with one or two marks, it must be fused according to the weight of the construction requirements. After being dehydrated, it can be used as a cementing material.
(1) 配制沥青玛帝脂,应遵守以下规定:
(1) the preparation of asphalt mastic grease shall comply with the following requirements:
①玛帝脂的选用、调制和技术标准,及其性能应遵照相关文章选定及应用。
1. The selection, modulation and technical standards of Ma Di fat and its performance should be selected and applied according to relevant articles.
②为了提高沥青的耐热度、韧性和抗老化性能,在溶融后的沥青中掺入适当品种和数量的填充材料,配制成沥青胶结材料。施工过程中应严格控制玛帝脂的耐热度及相应的软化点和柔韧性。
(2) in order to improve the heat resistance, toughness and aging resistance of asphalt, an appropriate variety and quantity of filling materials are added into the bitumen after melting and the asphalt cementing material is prepared. During construction, the heat resistance and the softening point and flexibility of the fat should be strictly controlled.
③石油沥青胶结材料在熬制时,加热温度和使用温度应符合表1 -13 所示。
3. When the asphalt cement material is boiled, the heating temperature and service temperature should conform to table 1-13.
④冷玛帝脂使用时应搅匀,稠度太大时可加入少量溶剂稀释搅匀。
4. When cold cream is used, it should be stirred. When the consistency is too large, add a small amount of solvent and dilute it.
(2) 溶剂:配制冷底子油用的溶剂有轻柴油、煤油、汽油及蒽油和苯等 (焦油沥青冷底子油中,只能使用蒽油和苯溶剂)。
(2) solvent: the solvent used for the preparation of cold base oil is light diesel, kerosene, gasoline and anthracene oil and benzene, such as tar pitch cold base oil, only anthracene oil and benzene solvent are used.
(3) 冷底子油的配制
(3) preparation of cold base oil
①配合成分为 (重量比) 石油沥青∶汽油=30∶70 (用于已硬化干燥的水泥砂浆基层上;石油沥青∶煤油 (轻柴油) =40∶60 (涂刷在终凝前的水泥砂浆基上)。
(1) composition (weight ratio) petroleum asphalt: gasoline = 30: 70 (for hardened and dry cement mortar base; oil bitumen: Kerosene (light diesel) = 40: 60 (painted on the cement mortar before final condensing).
②配制将石油沥青加热熔融后 (160 ~200 ℃) 冷却到140 ℃时,在不断搅拌下,将溶化的沥青形成细流,慢慢注入溶剂中。注入时,应不停地搅拌直至沥青完全溶解形成均一体系为止。
After heating and melting petroleum bitumen (160~200 degrees C) to 140 degrees C, the prepared asphalt is continuously stirred, and the dissolved asphalt is formed into a fine flow and slowly injected into the solvent. When injected, the mixture should be kept stirring until the asphalt is completely dissolved to form a homogeneous system.
③冷底子油的干燥时间,视其用途而定。
The drying time of cold base oil depends on its use.
a.在水泥基层上涂刷的慢挥发性冷底子油为12 ~48h 。
The slow volatile cold base oil that A. brushed on the cement base is 12 to 48h.
b.在水泥基层上涂刷快挥发性冷底子油为5 ~10h 。
B. brushing the fast volatile cold base oil on the cement base is 5 to 10h.
(二) 施铺技术控制要点
(two) key points of technical control of application
1.将沥青油毡上的云母片或滑石粉清除干净,然后反面松松地卷好,直立存放备用。
1. clean the mica sheets or talcum on the asphalt felt, then roll it back loosely, and store it upright.
2.铺贴沥青油毡,必须采用同一性质的沥青胶结材料。
2. paving asphalt felt must use the same nature of asphalt cementing material.
3.玛帝脂软化点测试值的允许偏差为±5 ℃。
3. the allowable deviation of the test value for the softening point of the Ma Di is 5.
4.沥青胶结材料工作温度,允许偏差值为-10 ℃。
4. the working temperature of asphalt cementation material, the allowable deviation value is - 10 degree.
5.基层应牢固、无松动、表面应干燥、洁净。
5. the grass roots should be firm and loose, and the surface should be dry and clean.
6.涂刷冷底子油宜在铺贴油毡前1 ~2d 进行,冷底子油应涂刷均匀。
6. the cold base oil should be 1 to 2D before laying the felt, and the cold base oil should be evenly brushed. |
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