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傳統(tǒng)有機丁基防水嵌縫膠與丁基防水嵌縫膠的比較
- 發(fā)布時間 : 2025-1-11 17:38:33
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(Summary description)Customized SILICONE STRUCTURAL SEALANT from China manufacturer refers to the adhesive with high strength, can bear large load, aging resistance, fatigue resistance and corrosion resistance, and has stable performance within the expected life. It is suitable for bearing the bonding of strong structural parts. Non structural adhesive has low strength and poor durability. It can only be used for bonding, sealing and fixing of ordinary and temporary properties, and cannot be used for structural adhesive bonding. NEUTRAL SILICONE WETHERPROOF SEALANT from China manufacturer is a structural adhesive with waterproof function. Silicone glue refers to the adhesive based on silicone rubber. According to different functions, it can be divided into structural adhesive, potting adhesive, sealant, thermal conductive adhesive, flame retardant adhesive and so on.
傳統(tǒng)有機丁基防水嵌縫膠與丁基防水嵌縫膠的比較
(Summary description)Customized SILICONE STRUCTURAL SEALANT from China manufacturer refers to the adhesive with high strength, can bear large load, aging resistance, fatigue resistance and corrosion resistance, and has stable performance within the expected life. It is suitable for bearing the bonding of strong structural parts. Non structural adhesive has low strength and poor durability. It can only be used for bonding, sealing and fixing of ordinary and temporary properties, and cannot be used for structural adhesive bonding. NEUTRAL SILICONE WETHERPROOF SEALANT from China manufacturer is a structural adhesive with waterproof function. Silicone glue refers to the adhesive based on silicone rubber. According to different functions, it can be divided into structural adhesive, potting adhesive, sealant, thermal conductive adhesive, flame retardant adhesive and so on.
- 發(fā)布時間 : 2025-1-11 17:38:33
- Views:
(1)瀝青。瀝青是一種加熱丁基防水嵌縫膠,因此受溫度的影響比較大。夏天,由于受到高溫的影響,瀝青會軟化,從接縫處擠出之后遇冷凝固便無法回到接縫,由此便突出在路面上,經(jīng)過過往車輛的不斷碾壓后破碎在路面上,降低行車舒適度,造成一定的環(huán)境污染,并且由于熱熔,導致石頭等雜物進入裂縫,給接縫的縮小帶來障礙,導致接縫的兩邊出現(xiàn)啃邊的現(xiàn)象;在冬天,瀝青會變得硬脆,很難滿足板縫位移的要求,致使接縫粘結(jié)差,拉環(huán)被撕開,而且受低溫影響收縮,擴大裂縫。此外,瀝青對紫外線的抵抗能力也比較差。瀝青本身的特性,使它用于接縫密封的效果不佳,不能保護混凝土不受雨水的腐蝕破壞,而且維護頻繁、費用比較高,因此在我國主要是應(yīng)用在二級、三級公路及小部分以及公路的路面接縫密封之中。瀝青在性能檢測標準很低的情況下仍舊有很大一部分的試件檢測失敗,但仍被標準所接受,這表明,瀝青基本上沒有實質(zhì)性的指標要求。并且瀝青是一種較為頑固的材料,很難進行本質(zhì)的改變,目前所謂的新型瀝青,仍然是煤焦油瀝青的改性物質(zhì)。
(2)丁基防水嵌縫膠是在20世紀中期出現(xiàn)的一種接縫丁基防水嵌縫膠,分為單組分和雙組分兩種類型。聚氨酯密封膠的使用極大地提高了接縫的密封效果,發(fā)揮防水功能,并且材料用量和人工均有所減少,但是材料的成本相對瀝青而言比較高。聚氨酯密封膠相對于瀝青而言,其優(yōu)點在于使用壽命長、填縫厚度小、不需要復雜的加熱,平均到每延米的成本增加的幅度減少。瀝青填縫的厚度一般在150一300 mm之間,而聚氨酯密封膠只需要大于10 mm即可,因此兩種材料在用量上有很大的差距;由于不需要加熱,提高了施工的安全性,避免對環(huán)境的污染和破壞。因此,在我國,聚氨酯密封膠主要應(yīng)用在高速公路和部分一級公路的路面接縫中。但聚氨酯密封膠同樣也存在很多不足,表現(xiàn)在,抗紫外線能力差,防水功能容易退化,一般在兩三年之內(nèi)即需要全部更新替換,反復的修補和更換導致耗費的人力物力財力的投人也比較多,并且難以保證混凝土路面的質(zhì)量要求。http://www.www.sunsage.net/
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