Taariikhda dhajinta: 01, Noofambar, 2021

Xarunta isku dhafka ah ee la taaban karo ee diyaarinta shubka, ma samayn karto iyada oo aan lahayn saddex walxood, wadar ahaan, budada iyo walxaha dareeraha ah. Walaxda ugu muhiimsan ee walxaha dareeraha ah waa biyo iyo wax lagu daro, ma aha qayb ikhtiyaari ah, oo ka soo jeeda cutubka miisaankooda madaxbannaan ayaa la arki karaa. Tani waa qaybta ugu muhiimsan ee baahida isku dhafka ah ee la taaban karo Waa maxay sifooyinka?

Marka hore aan ka hadalno wakiilka biyaha shubka ee sida caadiga ah loo isticmaalo:sodiumnaphthalenesulfonatewax-ku-oolnimada sare ee wax-yaraynta biyaha,polycarboxylic acidwax-ku-oolnimada sare ee wakiilka yaraynta biyaha iyowakiilka yaraynta biyaha lignin.

Sodiumnaphthalenesulfonate wakiilka biyaha yaraynta hufan: noocan oo kale ah wakiilka yaraynta biyaha waa synthesis kiimikaad ee non hawo wax ku ool ah biyo yaraynta wakiilka, in qaybo sibidhka leeyihiin saamayn kala firdhiso xoog leh, in qaabeynta ee shubka socodka, iyo hore xoog, shuruudaha xoogga sare ee shubka-in-goobta shubka iyo ka hor dhiska, isticmaalka wakiilka biyaha yaraynta ayaa saamayn aad u wanaagsan.Can hagaajin karaa shaqada qayb kasta oo la taaban karo comprehensively.The shubka qasan by noocan oo kale ah wakiilka biyaha yaraynaysaa waxaa si weyn loo isticmaalaa in Bridges,DAMS, dekedaha iyo docks, tunnels. , Korontada, ilaalinta biyaha iyo mashaariicda dhismaha madaniga ah iyo qaybaha ilaalinta dabiiciga ah.

Polycarboxylicsbalaastikada wax ku oolnimada sare wakiilka yaraynta biyaha: tani waa nooc cusub oo biyo yaraynta wakiilka, loo yaqaan "ku habboon" admixture la taaban karo oo heer sare ah, lagu qasi karaa noocyo kala duwan oo admixtures galay admixtures multi-functional, sida wakiilka bamgareynta, hore wakiilka xoogga, Walaxda ka-hortagga aragga, xinjirowga dhiigga. Heerka dhimista biyaha ee 1%polycarboxylic acid superplasticizerwaa 35%, iyo xoogga hore waxaa kordhay in ka badan 50%.Waxay si gaar ah ugu habboon tahay shubka dambaska duqsiga sare.

Lignosulphonate loo isticmaalo sida wakiilka yaraynta biyaha la taaban karo ee 0.2-0.3%, hoos u dhigi kartaa isticmaalka biyaha la taaban karo 10% -12%, yareeyaan saamiga biyaha-cement, badbaadi shamiitada ku saabsan 10%, hagaajinaysaa awoodda shaqada la taaban karo, dareere iyo permeability caabin, hagaajinaysaa xoogga la taaban karo iyo isafgaradka, oo leh saameyn hore oo xoog leh, gaaban waqti dejinta, wanaaji xoogga cadaadiska.

Waa maxay nooca admixture, sida laga soo xigtay baahida injineernimada macaamiisha u gaar ah si ay u fuliyaan, waxaan guud ahaan sheegay in saldhigga la taaban karo injineernimada ayaa la qabsiga ka wanaagsan, inta badan, sababtoo ah doorashada ee admixture ayaa aad ugu dhow mashruuca, tani waa sababta ay jiraan mashaariic waaweyn. Weli waxay maalgashadaan dhismaha saldhig weyn oo isku dhafka ah oo aan si toos ah u iibsan ganacsi shuban ah.Tusaale ahaan, warshadda isku dhafka tareenada xawaaraha sare leh ee hadda jirta ayaa si gaar ah loogu talagalay mashaariicda xawaaraha sare ee tareenada.