Taariikhda Boostada:17,Abriil,2023

Kiimikooyinka khatarta ah waxay tixraacaan kiimikooyinka sunta ah ee aadka u sunta ah iyo kiimikooyinka kale ee sunta ah, daxalka ah, kuwa qarxa, kuwa ololaya, gubanaya iyo waxyeelada u leh jidhka bini'aadamka, xarumaha iyo deegaanka.

Waxtarka waxtarka sare leh ee biyaha yareeya ee shubka ah inta badan waxaa ka mid ah taxanaha naphthalene, taxane melamine iyo wakiilada biyaha yareeya oo iyaga ka mid ah, kuwaas oo taxanaha naphthalene uu yahay kan ugu weyn, oo xisaabinaya 67%. Taxanaha Naphthalene iyo taxanaha melamine ma aha kiimikooyin khatar ah. Sidaa darteed, superplasticizer shubka ah kama mid aha qaybta kiimikada khatarta ah.

Isku-dhafka oo si weyn u yareeyn kara mugga biyaha isku dhafka ah ee hoos yimaada xaaladda in isku-darka shubka asal ahaan la mid ah ayaa loo yaqaannaa wakiilka biyaha-yareeya waxtarka sare leh.

Heerarka yaraynta biyaha ee wax-ku-oolnimada sare ee wakiilka biyaha yareeya waxay gaari kartaa in ka badan 20%. Waxay inta badan ka kooban tahay taxane naphthalene, taxane melamine ah iyo wakiilada biyaha yareeya oo iyaga ka mid ah, kuwaas oo taxanaha naphthalene uu yahay kan ugu weyn, xisaabinta 67%. Gaar ahaan Shiinaha, badi caagadaha superplasticizers waa superplasticizers taxanaha naphthalene oo leh naphthalene oo ah alaabta ceeriin ee ugu weyn. Naphthalene superplasticizer taxane ah waxaa loo qaybin karaa alaabada fiirsashada sare (Na2SO4 content <3%), alaabada fiirsashada dhexdhexaadka ah (Na2SO4 content 3% ~ 10%) iyo alaabta fiirsashada hoose (Na2SO4 content> 10%) marka loo eego nuxurka Na2SO4 ee alaabteeda . Inta badan dhirta superplasticizer taxanaha naphthalene waxay awood u leeyihiin inay xakameeyaan waxa ku jira Na2SO4 ee ka hooseeya 3%, iyo qaar ka mid ah ganacsiyada horumarsan ayaa xitaa xakameyn kara wax ka hooseeya 0.4%.