Tsiku Lotumiza:17,Apr,2023
Mankhwala owopsa amatanthauza mankhwala oopsa kwambiri ndi mankhwala ena omwe ndi oopsa, owononga, ophulika, oyaka, ochirikiza kuyaka komanso ovulaza thupi la munthu, malo ndi chilengedwe.
Mankhwala ochepetsera madzi a konkire makamaka amaphatikizapo mndandanda wa naphthalene, mndandanda wa melamine ndi othandizira kuchepetsa madzi ophatikizidwa kuchokera kwa iwo, omwe mndandanda wa naphthalene ndi waukulu, womwe umawerengera 67%.Naphthalene mndandanda ndi melamine mndandanda si woopsa mankhwala.Chifukwa chake, superplasticizer ya konkriti siili m'gulu lamankhwala oopsa.
Kusakaniza komwe kungathe kuchepetsa kwambiri kusakaniza kwa madzi pansi pa chikhalidwe chakuti kugwa kwa konkire kumakhala kofanana kumatchedwa wothandizila wochepetsera madzi.
Mlingo wochepetsera madzi wa wothandizira kwambiri wochepetsera madzi ukhoza kufika kuposa 20%.Amapangidwa makamaka ndi mndandanda wa naphthalene, mndandanda wa melamine ndi othandizira kuchepetsa madzi ophatikizidwa kuchokera kwa iwo, omwe mndandanda wa naphthalene ndiwo waukulu, womwe umawerengera 67%.Makamaka ku China, ambiri mwa superplasticizers ndi naphthalene mndandanda superplasticizers ndi naphthalene monga waukulu zopangira.Naphthalene mndandanda superplasticizer akhoza kugawidwa mu zinthu mkulu ndende (Na2SO4 zili <3%), sing'anga ndende mankhwala (Na2SO4 zili 3% ~ 10%) ndi otsika ndende mankhwala (Na2SO4 okhutira> 10%) malinga ndi zili Na2SO4 mu mankhwala ake. .Ambiri naphthalene mndandanda superplasticizer kaphatikizidwe zomera amatha kulamulira zili Na2SO4 m'munsimu 3%, ndi ena mabizinezi zapamwamba akhoza ngakhale kulamulira m'munsimu 0,4%.
Kuchuluka kwa ntchito:
Imagwiritsidwa ntchito pa konkriti yokhazikika komanso yokhazikika m'nyumba zosiyanasiyana zamafakitale ndi anthu, malo osungira madzi, mayendedwe, madoko, ma municipalities ndi ntchito zina.
Zimagwiritsidwa ntchito ku mphamvu yamphamvu, yowonjezereka kwambiri komanso yapakati-mphamvu konkire, komanso konkire yomwe imafuna mphamvu zoyamba, kukana chisanu ndi madzi ambiri.
Zopangira konkire zigawo zoyenera nthunzi kuchiritsa ndondomeko.
Ndizoyenera kupanga zochepetsera madzi ndi kulimbikitsa zigawo (ie masterbatch) zamitundu yosiyanasiyana yophatikizika.
Si wa.Mankhwala owopsa ndi zida zophulika.Komabe, superplasticizer ya konkriti wamba ilibe zida zophulika komanso zophulika, kotero superplasticizer ya konkriti si ya mankhwala oopsa.
Nthawi yotumiza: Apr-17-2023