Ndeipi nzira yekufamba kwemugwagwa Kuumbwa, Elasticity & mamiriro ekunze anopesana akatsanangura
Sunungura nguva:2025-08-21
Mugwagwa wepamugwagwa kupenga selant ndeyechokwadi zvinhu zvinoshandiswa kugadzirisa uye kusimbirira marara mune asphalt kana concrete maficha. Izvo zvinodzivirira mvura, marara, uye makemikari kubva pakupinda muchimiro chekuputika, izvo zvinogona kutungamira kune potholes, base-layer kuumbwa, uye kuvakazve kunovakazve.
Kuumbwa
Kupaza masheya zvinonyanya kuitika kune:
Base asphalt: inopa iyo foro-dehosion uye mvura.
Polymers: senge SBS (STYRene-butadiene-styrene-Styrene) kana SBR (Styrene-Butadiene Rubber), Kuwedzera Elasticity uye kusanganisa simba.
Kuwedzera: Kusanganisira crumb rabara, resins, antioxidants, uye UV stabilizers kuti uwedzere kusimba uye kupokana kwemamiriro ekunze.
Vafiridzi: Sezvinoita limestone kana quartz jecha, kuvandudza kugadzikana uye kuita zvakanaka.
Elasticity
Sachelants anofanira kuratidzira yakakwira elasticity (≥80% yekudzoreredza rate) kuti igare padanho rekutenderera rinokonzerwa nekudziya tembiricha uye traffic mitambo. Semuenzaniso, ivo vanogona kutambanudza pamusoro pegumi cm pasina kupaza pane yakadzika tembiricha (-20 ° C), ichiratidza kuti ichinjika kwenguva refu uye kudzivirira kudzokorora.
Kupokana Kwemamiriro ekunze
Kupisa kupokana: Mazwi ekupisa anosvika kusvika 80-110 ° C pasina kupfava kana kuyerera.
Kutonhora kuchinjika: inoramba iripo pa -20 ° C kusvika -40 ° C, ichidzivisa brauts.
Anti-oting Properties: Uv Absorbers uye Antioxidants kudzikisira kusvibiswa kwezuva, oksijeni, uye kunyorova, kuwedzera kwehupenyu hwebasa.
Zvishandiso
Inoshandiswa migwagwa mikuru, airport inomhanya, mabhiriji, uye yekupaka mijenya, kuputika kwemakungwa anoshandiswa kupisa (180-220 ° C) kune matipi akadzika-otonhora ekugadzirisa nekukurumidza. Kushandiswa kwavo kwechiitiko kunotambanudza maruva ehupenyu pamakore 5-7, kuderedza mari yekuchengetedza neinosvika makumi manomwe neshanu muzana zvichienzaniswa nekugadzirisa.
Mukukosha, kupaza selank kunosanganisa tailored chemistry uye engineering yekuchengetedza misangano kuburikidza neinoshandurwa, kushaikwa kwemamiriro ekunze.
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