Litaba

Boemo ba nts'etsopele ea meaho ea konkreite e matlafalitsoeng

Hajoale, konkreite e matlafalitsoeng ke mofuta oa sebopeho o sebelisoang ho fetisisa China, o ikarabellang ho boholo ba kakaretso. Ka nako e ts'oanang, hape ke sebaka se nang le meaho ea konkreite e matlafalitsoeng ka ho fetesisa lefatšeng. Tlhahiso ea samente ea eona ea lihlahisoa tse tala e fihletse lithane tse limilione tse likete tse 1,882 ka 2010, e ikarabellang bakeng sa 70% ea kakaretso ea lefatše.

Ho sebetsa molao-motheo oa konkreite e matlafalitsoeng

Lebaka leo ka lona konkreite e matlafalitsoeng e ka sebetsang 'moho le laoloang ke thepa ea lona. Ntlha ea pele, mekoallo ea tšepe le konkreite li na le coefficient e lekanang ea katoloso ea mocheso, mme phapano lipakeng tsa mekoallo ea tšepe le konkreite e nyane haholo mochesong o le mong. Taba ea bobeli, ha konkreite e thatafala, ho na le tlamo e ntle lipakeng tsa samente le bokaholimo ba matlafatso, e le hore khatello ea maikutlo e ka fetisoa ka nepo lipakeng tsa bona; Ka kakaretso, bokaholimo ba matlafatso bo boetse bo sebetsoa ka likhopo tse thata le tse arotsoeng ka masenke (tse bitsoang rebar) ho ntšetsa pele tlamahano pakeng tsa konkreite le matlafatso; Ha sena se ntse se sa lekana ho fetisetsa tsitsipano lipakeng tsa matlafatso le konkreite, pheletso ea matlafatso hangata e koaletsoe likhato tse 180. Taba ea boraro, lintho tse nang le alkaline ka samente, joalo ka calcium hydroxide, potasiamo hydroxide le sodium hydroxide, li fana ka tikoloho ea alkaline, e hlahisang filimi e sirelletsang e matlafatsang, ka hona ho thata haholo ho senya ho feta ho matlafatsa tikolohong e sa nke lehlakore le e nang le asiti. Ka kakaretso, tikoloho e nang le boleng ba pH e kaholimo ho 11 e ka sireletsa matlafatso ho ts'enyeho; Ha e pepesetsoa moeeng, boleng ba pH ba konkreite e matlafalitsoeng bo theoha butle ka lebaka la acidification ea carbon dioxide. Ha e le tlase ho 10, matlafatso a tla senyeha. Ka hona, ho hlokahala ho netefatsa botenya ba lera le sireletsang nakong ea kaho ea projeke.

Tlhaloso le mofuta oa matlafatso a khethiloeng

Likahare tsa khatello e matlafalitsoeng ka konkreite e matlafatsoang hangata e nyane, ho tloha ho 1% (haholo-holo ka libalaka le matlapeng) ho isa ho 6% (boholo ba litšiea). Karolo ea matlafatso e chitja. Bophara ba matlafatso United States bo eketseha ho tloha ho 0,25 ho isa ho 1 inch, bo eketseha ka 1/8 inch sehlopheng ka seng; Europe, ho tloha ho 8 ho isa ho 30 mm, ho eketseha ka 2 mm sethaleng ka seng; Naha ea China e arotsoe likarolo tse 19 ho tloha ho 3 ho isa ho 40 millimeter. United States, ho latela likarolo tsa khabone tse matlafatsoang, e arotsoe ka tšepe ea 40 le tšepe ea 60. Ea morao-rao e na le likhabone tse phahameng, matla a phahameng le ho satalla, empa ho thata ho koba. Sebakeng se senyang, mekoallo ea tšepe e entsoe ka electroplating, epoxy resin le celik le eona e sebelisoa.