Dab tsi yog Qhov Ua Tau Zoo Dej Txias Dej Dab Tsi Yog Qhov Ua Tau Zoo Dej Txias Dej

Dab tsi yog qhov ua tau zoo ntawm cov dej reducer Dab tsi yog cov dej ua kom muaj txiaj ntsig siab

High-efficiency dej reducer yog cov khoom siv tshuaj lom neeg uas tuaj yeem txhim kho kev ua haujlwm ntawm cov pob zeb thiab txo cov dej haus. Tam sim no, cov dej siv dav siv feem ntau suav nrog: lignin-based water reducer, naphthalene-based high-efficiency water-reducer, melamine-based high-efficiency water-reducer and polycarboxylate-based superplasticizer. Kev tshawb fawb txog kev ua haujlwm ntawm cov tshuaj khib nyiab qhia tau hais tias qhov sib ntxiv ntawm cov dej ua kom muaj txiaj ntsig zoo tuaj yeem txo qhov kev tawg ntawm cov cement mortar thiab ncua sij hawm pib tawg ntawm cov cement mortar. Tus nqi shrinkage ntawm mortar tov nrog high-efficiency superplasticizer nce nrog qhov nce ntawm cov ntsiab lus.

Kev txhim kho keeb kwm ntawm superplasticizer:

Thawj tiam ntawm superplasticizers-naphthyl superplasticizers thiab melamine resin-based superplasticizers tau tsim nyob rau hauv thaum ntxov 1960s. Vim lawv qhov kev ua tau zoo piv nrog cov superplasticizers zoo tib yam - lawv tau tsim nyob rau xyoo 1930s lig. Lignosulfonate yog tus neeg sawv cev - nws tau raug kho kom zoo, yog li nws tseem hu ua superplasticizer. Lub thib ob tiam superplasticizer yog sulfamate, txawm hais tias nws yog tom qab peb tiam superplasticizer-polycarboxylate nyob rau hauv raws sij hawm kev txiav txim. Lub graft copolymer nrog ob pawg sulfonic acid thiab carboxylic acid pawg yog qhov tseem ceeb tshaj plaws ntawm peb tiam ntawm cov dej ua haujlwm siab, thiab qhov kev ua tau zoo kuj yog qhov zoo tshaj plaws kev ua haujlwm siab dej reducer.

Scope ntawm daim ntawv thov ntawm high-efficiency dej reducer:

1. Nws yog tsim rau prefabricated thiab cam khwb cia-nyob rau hauv-qhov chaw reinforced pob zeb nyob rau hauv ntau yam industrial thiab civil vaj tse, dej conservancy, tsheb thauj mus los, ports, municipal thiab lwm yam dej num.

2. Nws yog tsim rau high-strength, ultra-high-strength thiab nruab nrab-lub zog pob zeb, nrog rau cov pob zeb uas yuav tsum tau muaj zog thaum ntxov, nruab nrab Frost tsis kam thiab siab fluidity.

3. Precast qhob Cheebtsam haum rau cov txheej txheem ua kom sov.

4. Nws yog tsim rau cov dej-txo thiab ntxiv dag zog rau cov khoom (masterbatch) ntawm ntau yam kev sib xyaw ua ke.