Indima ePhambili yeSilicone Sealant kuKwandiswa kweConcrete ngokuBambisana ngokutywinwa kunye nokuKhuselwa

Ikhonkrithi sesona sixhobo sokwakha sisetyenziswa kakhulu kwiziseko ezingundoqo zale mihla kunye neeprojekthi zokwakha, ethandwa ngenxa yamandla aso aphezulu, ukuqina kunye neendleko-ezisebenzayo. Nangona kunjalo, ikhonkrithi inesiphene sendalo: ivakalelwa kakhulu kutshintsho lobushushu kunye noxinzelelo lwesakhiwo, ithanda ukwanda kwe-thermal kunye ne-contraction deformation. Ukuthintela izakhiwo zekhonkrithi ekuqhekekeni, ukonakala okanye ukudilika phantsi kobushushu obutshintshanayo kunye nemithwalo yangaphandle, imigangatho yokwakha ifuna ukuyilwa kwamalungu agciniweyo okwandiswa kuzo zonke iindlela, iibhulorho, imigangatho, iindonga kunye neziseko ezinkulu zekhonkrithi. La makhonkco okwandisa ayimfuneko ekukhuseleni ingqibelelo ebambekayo, ngeli lixa ekwangawona khonkco abuthathaka abeka emngciphekweni ukuvalwa kwamanzi kunye nozinzo. Njengomsebenzi ophezulu - wezinto zokutywina eziguquguqukayo, i-silicone sealant iye yaba sisisombululo esithandwayo sokwandisa ikhonkrithi yokudibanisa ukutywinwa, ukusombulula ngokufanelekileyo iingozi ezahlukeneyo ezifihliweyo zezinto zokuzalisa ngokubambisana kunye nokwandisa ubomi benkonzo yezakhiwo zekhonkrithi.

 

Iiprojekthi ezininzi zokwakha zamkela izinto zokuzalisa ezomeleleyo ezifana nodaka lwesamente, i-putty kunye neglue eqhelekileyo ye-caulking ukuzalisa amakhonkco okwandisa ikhonkrithi kwinqanaba lokuqala. Ezi zixhobo eziqinileyo zinokufikelela kwi-flat surface effect ngexesha elifutshane, kodwa azikwazi ukuziqhelanisa nokwandiswa rhoqo kunye nokuchithwa kwekhonkrithi. Kubushushu obuphezulu-kwimimandla yasehlotyeni, ikhonkrithi iyakhula kwaye icudise umaleko wokuzalisa, ibangela ukuba izigcwalisi eziqinileyo ziqhekeke kwaye ziqhume. Kwiindawo eziphantsi{4}}zemozulu yasebusika, ukucutheka kwekhonkrithi, okukhokelela kwizithuba, ukugoba kunye nokuxobula izinto zokuzalisa. Nje ukuba umaleko wokutywina ungaphumeleli, amanzi emvula, amanzi ekhephu kunye nokufuma okungaphantsi komhlaba kuya kungena ngaphakathi kwekhonkrithi ecaleni kwamalungu okwandisa, okubangela umhlwa wentsimbi, i-concrete carbonization, umngxuma wangaphakathi kunye nokhukuliseko lwesakhiwo. Ekuhambeni kwexesha, umonakalo omncinci odityanisiweyo uya kuguqukela ekubeni{7}}kukuqhekeka kolwakhiwo lwendawo enkulu, okuchaphazela kakhulu ukhuseleko kunye nobomi benkonzo yezakhiwo kunye nezibonelelo.

 

I-Silicone sealant isombulula ngokupheleleyo iziphene zezixhobo zokuzalisa ezomeleleyo kunye nokusebenza kwayo okuphezulu kwe-elastic displacement. Ikhonkrithi yobuchwephesha -yebanga le-silicone sealant inokuziqhelanisa ne-20% ukuya kwi-25% yokwandiswa kwebhayisikile kunye noguquko lwe-contraction, ihambelana ngokugqibeleleyo noluhlu lwe-thermal deformation yezakhiwo zekhonkrithi. Igcina imeko eguquguqukayo kunye nengqongqo yokutywina unyaka wonke, ingacinezelwa kwaye iqhekezwe kukwandiswa kwe-thermal yekhonkrithi okanye ivelise izithuba ngenxa yokushwabana okubandayo. Esi siphumo esiqhubekayo se-buffering effect sikhupha ngokufanelekileyo uxinzelelo lwesakhiwo sekhonkrithi, sikhusela ingqibelelo yamalungu okwandisa, kwaye ngokusisiseko sinqanda umonakalo owenziwe ngenxa yokuqokelela uxinzelelo.

 

Ukuchasana nokungangeni manzi{0}}kukubona i-seepage ngumsebenzi ongundoqo we-silicone sealant kumalungu okwandisa ikhonkrithi. Izakhiwo zekhonkrithi ezifana nemigangatho yangaphandle, imigangatho yeebhulorho, iindonga zangaphantsi kunye neepavumente ezisecaleni kwendlela zisesichengeni sokuhlanjwa kwamanzi emvula kunye nokuntywiliselwa kwamanzi angaphantsi komhlaba unyaka wonke. I-colloid exineneyo nengenamthungo ye-silicone sealant ine-ultra-i-low water permeability, enokuthi yenze umqobo ovalelweyo ongenamanzi ngaphakathi kwamalungu okwandisa. Ithintela ngokufanelekileyo ukungena kwamanzi emvula, ilindle kunye nomoya ofumileyo, inqanda umhlwa wentsimbi yangaphakathi kunye nomkhenkce wekhonkrithi{5}}umonakalo wokunyibilika, kwaye ikhusela inkqubo yangaphakathi yesakhiwo sekhonkrithi kukhukuliseko lokufuma. Ngokukodwa ngamaxesha emvula kunye neendawo ezibandayo zasebusika ezibandayo, i-silicone sealant inokuphepha ngokufanelekileyo ukuchithwa kwekhonkrithi, i-pulverization kunye nokuqhekeka okubangelwa ukukhenkceza kwamanzi kunye nokwandiswa ngaphakathi kwamalungu.

 

Ukuchasana nemozulu okugqwesileyo kunye nokumelana nokwaluphala ziinzuzo ezibalulekileyo ze-silicone sealant kwixesha elide{0}}lokhuseleko lwekhonkrithi. Uninzi lwamalungu olwandiso lwekhonkrithi akwiindawo ezivulekileyo zangaphandle, ezijongene-nemitha ye-UV yexesha elide, ukhukuliseko lomoya kunye nemvula, ubushushu obuphezulu nobuphantsi obutshintshanayo. Izinto eziqhelekileyo zokutywina ziya kuguga, zibe tyheli, zibe lukhuni kwaye zisilele kwisithuba seminyaka emi-2 ukuya kwemi-3, efuna ukugcinwa rhoqo kunye nokutshintshwa. Ngokwahlukileyo, i-silicone sealant ineempawu ezizinzileyo zomzimba kunye neekhemikhali, ukumelana nokuguga kwe-ultraviolet, ukuwohloka kwe-oxidative kunye nokukhukuliseka kwemozulu. Inokugcina i-elasticity elungileyo, ukunamathela kunye nokusebenza kokutywina iminyaka engaphezu kwe-15, ukunciphisa kakhulu iindleko zokugcinwa kamva kunye nokugcinwa rhoqo kweeprojekthi eziphathekayo.

 

Ukongeza, i-silicone sealant inokuguquguquka okuqinileyo kwe-substrate kunye nokuzinza kwebhondi. Iyakwazi ukwenza i-adhesive bonding eqinile kunye neyomeleleyo kunye neendawo ezahlukeneyo zekhonkrithi, iziseko zesamente kunye ne-substrates zamatye. Iyakwazi ukulinganisa izithuba ezingaqhelekanga zokwandiswa kwamalungu, ukunqanda ukukrazula nokuchitha, kwaye igcine uzinzo{2}}lokutywina ixesha elide. Kwangaxeshanye,-ikhwalithi ephezulu ye-silicone sealant inokumelana kakuhle nokudleka kweekhemikhali, ukumelana nokukhukuliseka kothuli lwendlela, ugutyulo, iasidi kunye nezinto zealkali, kwaye ilungele iimeko zokusetyenziswa eziqatha ezifana neendlela zikamasipala, iiprojekthi zebhulorho kunye nemigangatho yefektri yefektri.

 

Kwizicelo zobunjineli ezisebenzayo, ukwakhiwa kwe-silicone sealant okusemgangathweni kunokuphucula kakhulu umgangatho uwonke wezakhiwo zekhonkrithi. Emva kokucoca, ukomisa kunye nokunyusa amajoyina okwandisa, ukuzaliswa kwe-silicone sealant kunokuqonda ukukhuselwa kokutywinwa okuhlangeneyo, okungaqinisekisi kuphela indawo ethe tyaba kunye nenhle yekhonkrithi, kodwa iphucula yonke into engenamanzi kunye ne-anti-ukuqhekeka kwesakhiwo. Kwiziseko ezingundoqo-ezinje ngohola wendlela, iindawo zokwandiswa kwebhulorho kunye nemigangatho yegaraji engaphantsi komhlaba, i-silicone sealant ibe sisixhobo sokukhusela esiyimfuneko ukuqinisekisa umgangatho weprojekthi kunye{4}}nozinzo lokusebenza kwexesha elide.

 

Isishwankathelo, i-silicone sealant iguqula indlela yokukhusela i-passive ye-concrete ye-concrete yokwandisa amajoyina ukusuka ekuzaliseni okuqinileyo ukuya ekukhuseleni okuguquguqukayo. Ngokuguquguquka kwayo okugqwesileyo, ukuchasana nokungangeni kwamanzi -ukusebenza kokubona kunye nokuchasana nokuguga kwexesha elide{2}}, isombulula ngokufanelekileyo iingxaki eziqhelekileyo ezifana nokuqhekeka okudibeneyo, ukuqhekeka kwamanzi kunye nokonakala kwesakhiwo sezakhiwo zekhonkrithi. Sisixhobo sokutywina esiphezulu{4} esiqinisekisa ukhuseleko lwexesha elide{5}, uzinzo kunye nokuqina kwezakhiwo ezibambekayo kunye neziseko ezingundoqo.