Compound Early Simba Polycarboxylate Mvura Reducer

Kumba nekune dzimwe nyika, tsvagiridzo yekuvandudza simba rekutanga repolycarboxylate superplasticizers rinonyanya kutarisisa pane zvinotevera zvinhu zviviri.：

1 Kuwedzera yekutanga simba mumiriri kune polycarboxylic acid yekudzikisa mvura mumiriri, kuitira kuti mvura inoderedza mumiririri ine simba rekutanga basa

2 Nekugadzira iyo molecular chimiro chepolycarboxylate superplasticizer, an yekutanga yakasimba polycarboxylate superplasticizer nekutanga simba zvivakwa akagadzirwa.

Mushonga wekutanga-mhando polycarboxylic acid yekudzikisa mvura inowedzerwa nechikamu chakasimba chekutanga mupolycarboxylic acid yekudzikisa mvura. Izvo zviviri zvinosanganiswa mune imwe chikamu kuti zvive zvese simba rekutanga uye kuderedza mvura..

Zvikamu zvesimba zvekutanga zvinogona kukamurwa kuita zvikamu zvitatu zvinoenderana nemakemikari:

1 inorganic munyu (kusanganisira chloride munyu, nitrate, sulfates, carbonates, silicates, etc.);

2 organic matter (kusanganisira triethanolamine, calcium formate, calcium acetate, calcium oxalate, etc.);

3 composite type, composite organic uye inorganic zvinhu, zvakadai se triethanolamine uye sodium sulfate yakaoma.

Iyo huru meshini yekutanga simba mhedzisiro yekusanganiswa kwechinyakare inorganic munyu (sodium chloride, calcium chloride) uye polycarboxylate superplasticizers chiito cheC3A uye chloride munyu musimende kugadzira mvura-insoluble chlorohydrates.. ,Sodium sulphate inogona kuita neCa(OH)2 kugadzira calcium sulphate. Iyi calcium sulphate ine dispersibility yakanaka uye iri nyore kugadzira hydrated calcium sulphoaluminate crystal ine tricalcium aluminate., iyo hydration process ye tricalcium silicate inokurumidza, uye kuoma kwekongiri kunowedzera.

Zvidzidzo zvakaratidza kuti iyo 3d simba reNaCl mukati 0.75% yekongiri inowedzerwa ne 48%, uye fluidity yemusanganiswa wekongiri inogona kuramba ichichengetwa;Iyo 3d simba rekongiri neNaNO3 yakawedzera ne 38% mu 0.75% chipimo chemushonga, uye mhedzisiro yakanaka yekudzivirira inogona kuwanikwa.

Triethanolamine ndiyo inonyanya kushandiswa yekutanga simba chikamu mune organic zvinhu,Triethanolamine inomhanyisa kuumbwa kwe ettringite muC-S-H system uye inovandudza simba rekutanga rekongiri..

Atomu yeN mu triethanolamine inowanzoita chisungo checovalent neion yesimbi kuti iite yakagadzikana yakaoma.Kuumbwa kweiyo yakaoma kunoparadza zvisingadzivisiki zvigadzirwa zvakadai se tricalcium aluminate hydrate uye calcium sulphoaluminate., iyo inokurumidza kuparara kweye tricalcium aluminate uye tetracalcium aluminoferrate.Kukurumidza kuumbwa kwe calcium sulphoaluminate, kuumbwa kwecalcium sulphoaluminate kunozodzikisira kuderedza kuwanda kwe calcium ions uye aluminium ions., kuenderera mberi nekusimudzira hydration ye tricalcium silicate.Zvigumisiro zvinoratidza kuti simba rekumanikidza redhaka pa1d, 3d uye 7d yakawedzera ne 145%, 190% uye 135% pa 0.06% ye triethanolamine.

Rudzi rwemubatanidzwa runogona kunge rwuri musanganiswa wechinhu chisiri chega uye chinhu chisiri chemuviri, kana kuti inogona kunge iri musanganiswa wezvinhu zvisina kugadzirwa uye organic substance, kana kuti inogona kunge iri musanganiswa weorganic substance uye organic substance.Iyo composite type inowanzova nekusimba kwekutanga kurinani pane single blend type., uye huwandu hwekubatanidza hwakaderedzwa zvakare.

Mhedzisiro yacho inoratidza kuti yekutanga-mhando polycarboxylic acid yekudzikisa mvura yakasanganiswa nesodium thiocyanate. (1%) + triethanolamine (0.04%) inofananidzwa nedhaka rakasanganiswa neyakajairika polycarboxylic acid yekudzikisa mvura.Kusimba kwe1d, 3d, uye 7d yakawedzera 165%, 100%, uye 39%, zvichiteerana.

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