Dab tsi yog cov yam ntxwv ntawm Polycarboxylic Superplasticizer?

Polycarboxylic superplasticizer, raws li hom tshiab ntawm cov dej-txo tus neeg sawv cev, yog npaj los ntawm polymerization ntawm monomers nrog ntau yam functionalities. Nws cov qauv molecular yog qhov tshwj xeeb, siv tau zoo ntawm qhov chaw nyob thiab dispersing dej hais los ntawm electrostatic repulsion, uas ua rau tsis tsuas zoo dej tuav tab sis kuj zoo heev dispersibility.

1. Polycarboxylic superplasticizer yog tus cwj pwm los ntawm kev txo cov dej ntau thiab tsawg npaum li cas. Nws cov dej txo tus nqi tuaj yeem ncav cuag li 40%, ua rau nws tsim nyog siv rau hauv kev npaj cov pob zeb ua haujlwm siab.
2. Polycarboxylic superplasticizer tuaj yeem txo qhov poob ntawm pob zeb. Nws ua kom ntseeg tau tias qhov poob qis thaum lub sij hawm premix txheej txheem tswj tsis pub dhau 15%, ua kom yooj yim rau kev thauj mus los thiab muab kev pabcuam tseem ceeb hauv kev tsim kho.
3. Polycarboxylic superplasticizer zoo txhim kho kev ua haujlwm ntawm pob zeb. Thaum cov pob zeb poob siab, siv polycarboxylic superplasticizer tuaj yeem tiv thaiv kev sib cais lossis los ntshav, thaum tseem txhim kho cov tsos zoo. Tsis tas li ntawd, polycarboxylic superplasticizer tuaj yeem siv rau hauv cov pob zeb ncaj ncees. Thaum siv hauv cov pob zeb ua haujlwm siab, nws txhim kho kev sib koom ua ke ntawm cov pob zeb, txhim kho kev ua haujlwm, thiab tiv thaiv kom tsis txhob muaj cua sov thaum ntxov ntawm cov cement thaum lub caij ntuj sov tsim.
4. Polycarboxylic superplasticizer muaj zoo compatibility thiab adaptability nrog lwm yam admixtures thiab cement.
5. Polycarboxylic superplasticizer tuaj yeem txo qhov shrinkage ntawm pob zeb. Thaum siv hauv cov pob zeb ua haujlwm siab, nws txo qis qhov shrinkage, thaum tseem txhim kho lub durability thiab stability ntawm cov pob zeb thaum lub sij hawm tsim kho.
6. Polycarboxylic superplasticizer muaj cov ntsiab lus alkali tsawg. Thaum siv, nws yuav tsis ua rau alkali-tag nrho cov tshuaj tiv thaiv hauv pob zeb.
7. Polycarboxylic superplasticizer muaj kev ruaj ntseg zoo thiab ib puag ncig tus phooj ywg. Nws tsis precipitate tom qab lub sij hawm ntev cia thiab yuav tsis crystallize nyob rau hauv qis-kub tej yam kev mob. Tsis tas li ntawd, polycarboxylic superplasticizer yog non-toxic thiab harmless, nyob rau hauv txoj kab nrog ib puag ncig lub tswv yim tam sim no.
8. Piv nrog rau lwm cov dej-txo cov neeg ua haujlwm, polycarboxylic superplasticizer muaj txiaj ntsig zoo dua kev lag luam. Nyob rau hauv tib lub sijhawm, nws tuaj yeem txuag tau ntau cov cement.
9. Txawm hais tias nws muaj ntau qhov zoo, polycarboxylic superplasticizer kuj nthuav tawm qee qhov teeb meem thaum siv tswv yim. Cov hauv qab no yog cov teeb meem tseem ceeb: Ua ntej, cov pob zeb ua haujlwm siab siv polycarboxylic superplasticizer tuaj yeem ntsib teeb meem thaum thauj khoom, vim nws tsis sib haum nrog cov cement. Txhawm rau hais txog qhov no, kev sim sib xyaw cement yuav tsum tau ua ua ntej, thiab qhov sib xyaw tsim nyog yuav tsum tau siv thaum tsim kho. Qhov thib ob, thaum kev sib cais los yog kev poob qis heev tshwm sim, cov cement thiab polycarboxylic superplasticizer tuaj yeem pom zoo sib xws. Qhov teeb meem no tuaj yeem daws tau los ntawm kev kho qhov ntau npaum li cas ntawm cov tshuaj sib xyaw thiab siv qhov tseeb. Thib peb, tom qab hardening, qee cov pa npuas yuav tshwm rau ntawm qhov chaw ntawm cov pob zeb. Qhov no feem ntau yog vim kev siv ntau dhau ntawm superplasticizer. Yuav kom daws tau qhov teeb meem no, qhov sib xyaw ua ke yuav tsum tau tswj kom zoo, ua raws li cov qauv kev tsim kho, thiab tswj cov neeg ua haujlwm kom raug.