Post Zuva:9,Jan,2023

Mvura inoderedza chii?

Mvura inoderedza (senge lignosulfonates) ndiwo rudzi rwechibvumirano chinowedzerwa kune kongiri panguva yekusanganisa. Mvura inoderedza inogona kuderedza iyo yemvura ine 12-30% pasina kukanganisa basa rekushanda kongiri kana kuti simba rekongiri (izvo zvatinowanzo taura maererano nesimba rekumanikidza). Kune mamwe mazwi emvura anodzikisira, ayo ari makuruplastifers, mapurasitiki kana yakakwirira-mhando mvura inoderedza (hrwr).

Mhando dzeMvura-Kuderedza Adminture

Kune marudzi mazhinji emvura-kuderedza admixture. Kugadzira makambani anopa mazita akasiyana uye ekuzvimiririra kune aya admixture akadai seyemagetsi-ipoders, densifiers, etissability, etc.

Kazhinji, isu tinogona kukoshesa mvura-inodzora mumhando nhatu zvichienderana nemakemikari avo emakemikari (sepasina 1):

Lignosulfonates, hydroxyarboxylic acid, uye hydroxyolated polymers.

Lignin anobva kupi?

Lignin chinhu chakaomarara icho chinomiririra chinoshamisa 20% yeiyo kuumbwa kwehuni. Panguva yekuita kwekugadzirwa kwepepa-kugadzira pulp kubva kune huni yemahara sulfirous acid kana shungu.

Kutevera kusarerekera, precipitation uye maficha ekutsvaira zvinoburitsa huwandu hwenzvimbo yekuchena kwakasiyana uye nekutsanangurwa kwezvinhu zvakavanzika, zvakadai sekushandiswa kweshoko uye kunyange mhando yedondo renondo rinoshandiswa se pulp feedstock.

Lignosulfonates seMvura-inodzora muKongororo

Lignosulfonate Supplasticastizer Dose DECE inowanzoitika 0.25 muzana, iyo inogona kuguma nekudzikiswa kwemvura inosvika gumi nemasere kusvika gumi nemaviri muzana muComent Zvemukati (0.20-00%). Sekushandiswa kwakaita mune yakakodzera dosage, simba rekongiri rakavandudzwa ne15-20% kana zvichienzaniswa neyekucherechedzwa kongiri. Simba rakakurira ne20 kusvika pamakumi matatu muzana mushure memazuva matatu, ne15-20 muzana mushure memazuva manomwe, uye nemari yakafanana mushure memazuva makumi masere nemasere mushure memazuva makumi masere nemasere mushure memazuva makumi masere nemasere.

Pasina kushandura mvura, kongiri inogona kuyerera zvakanyanya zvakasununguka, zvichiita kuti zvive nyore kushanda ne (kureva kuwedzera basa).

Nekushandisa imwe toni yeLignosulfonate Superpasticasizer Powder Poda panzvimbo yeiyo simende, iwe unogona kuchengetedza makumi matatu ematani emasimendi uchichengetedza kongiri imwe chete, uye kureverera kongiri.

Munzvimbo yakajairwa, kongiri yakasanganiswa neiyi mumiririri inogona kunonoka kupisa kwehydration neanopfuura maawa mashanu, iyo yekupedzisira nguva yekupfuura maawa matatu, uye nguva yekukwana kanopfuura maawa matatu achigona kufananidzwa nekongiri. Izvi zvinobatsira pakuvaka zhizha, commdity kongiri yekufambisa, uye misa kongiri.

Lignosulfonate SuperPellasticastizer ine micro-yekupinza inogona kusimudzira kuita kweConcrete maererano neye freeze-thaw kusakwana.