Retarding admixtures: Feem ntau siv rau huab cua kub. Retarding admixtures pab thiab ua hauj lwm raws li cov dej txo tus neeg sawv cev thiab Cementrt retarder ua kom cov pob zeb ua haujlwm tau thaum lub sijhawm tso thiab ncua sij hawm pib ntawm cov pob zeb. … Accelerators ua pob zeb teem sai sai tom qab sib tov nrog pob zeb.
Vim li cas retarders thiab accelerators siv hauv pob zeb?
pob zeb teeb nrawm nrawm thiab thim rov qab admixtures tso cai rau cov neeg tsim khoom ua vaj tse hloov kho lub sijhawm teem ntawm pob zeb raws li lawv qhov kev xav tau tshwj xeeb. Accelerating thiab retarding admixtures yuav siv tau los hloov cov pob zeb teem acceleration los yog retardation.
Vim li cas cov retarders siv hauv pob zeb?
Retarding admixtures, uas qeeb qhov teeb tsa tus nqi ntawm cov pob zeb, yog siv los tawm tsam qhov nrawm ntawm huab cua kub ntawm qhov chaw ua vaj tse. … Retarders ua kom cov pob zeb ua haujlwm tau thaum lub sijhawm tso thiab ncua sij hawm pib ntawm pob zeb. Feem ntau cov retarders kuj ua haujlwm raws li cov dej txo qis thiab tuaj yeem nkag tau qee qhov cua hauv pob zeb.
Cov txiaj ntsig ntawm kev siv cov khoom sib xyaw ua kom nrawm yog dab tsi?
Accelerating admixtures tuaj yeem siv los nce ntxiv ntawm tus nqi txhav lossis kev teeb tsa ntawm cov pob zeb lossis tus nqi ntawm hardening thiab ntxov zog nce kom tso cai ua ntej formwork tawm tsam thiab demoulding.
Vim li cas peb thiaj siv cov khoom sib xyaw ua ke?
Admixtures yog siv hauv pob zeb txhawm rau txhim kho kev ua tau zoo ntawm kev sib xyawntau txoj kev. Feem ntau ntxiv ua ntej lossis thaum lub sijhawm sib xyaw, cov khoom sib xyaw tuaj yeem ua kom lub zog sib xyaw, ua kom nrawm lossis qeeb ntawm cov txheej txheem kho ntawm lwm cov txiaj ntsig.
