Lub teeb yuag qhob ntxiv | Kev Ua Haujlwm Siab Ua Foaming Cov Neeg Sawv Cev Rau Cov Khoom Siv Ntawm Tes
What is water reducing agent?
Water reducing agent refers to the material that can reduce the amount of water for mixing and can improve the strength of concrete when the workability of concrete and the amount of cement remain unchanged. It also refers to the material that can save cement admixture under the condition of constant workability and strength.
What is the classification of water reducing agent?
According to its water reducing and enhancing ability, it is divided into ordinary water reducing agent (also known as plasticizer) and high-efficiency water reducing agent (also known as super plasticizer), which are also divided into first-class and qualified products.
According to its component materials, it is divided into :(1) water sulfonates; (2) polycyclic aromatic salts; (3) water-soluble resin sulfonates.
Cov tshuaj txo dej ib txwm yuav tsum siv rau kev tsim vaj tsev pob zeb uas muaj qhov kub tsawg tshaj 5°C txhua hnub. Cov tshuaj txo dej ua haujlwm siab yuav tsum siv rau kev tsim vaj tsev pob zeb uas muaj qhov kub tsawg tshaj 0°C txhua hnub, thiab haum rau kev npaj pob zeb nplaum uas muaj dej ntws siab, siab muaj zog, pob zeb nplaum steamed thiab nce.
Tam sim no, qee yam superplasticizers uas siv ntau hauv kev lag luam yog: naphthalene series superplasticizer, aliphatic group superplasticizer, amino superplasticizer, superplasticizer, tshuaj txo dej ua haujlwm siab, slushing agent NF, hardening accelerator thiab dej reducing, sodium lignosulfonate, lignosulfonate, expansion agent, thiab lwm yam.
cov tshuaj txo dej siv tau dab tsi?
Nws siv ua cov khoom siv hauv tsev cement. Nws haum rau kev sib tov pob zeb, pumping concrete, Precast concrete thiab ntau hom pob zeb muaj zog thiab ua tau zoo, Tshwj xeeb tshaj yog thaum cov xwm txheej uas xuab zeb thiab pob zeb hauv cov khoom siv pob zeb muaj av thiab hmoov pob zeb.
Dab tsi yog cov txiaj ntsig ntawm kev ntxiv superplasticizer rau pob zeb?
(1) Kev ntws ntawm pob zeb tuaj yeem nce ntau yam tsis tas hloov qhov sib xyaw ntawm pob zeb;
(2) Khaws cia qhov dej ntws ntawm pob zeb thiab qhov ntau cement tsis hloov yuav txo kev siv dej thiab txhim kho zog;
(3) Khaws tib qho dej ntws thiab zog tuaj yeem txo qhov ntau cement;
(4) Khaws qhov xav tau dej ntws ntawm pob zeb tsis hloov yuav txo kev siv dej thiab txhim kho kev tiv taus txias thiab kev tiv taus permeability ntawm pob zeb;
(5) Nws tuaj yeem ncua sijhawm tso cua sov tawm los ntawm kev hydration cement, reduce the temperature stress in mass concrete, and reduce the possibility of cracking.
Cie-China.org yog tus thawj coj ua npuas ncauj qhob ntxiv muab cov pob zeb ua npuas ncauj ua npuas ncauj, superplasticizer,Ua npuas ncauj qhob lub zog enhancer rau lub teeb yuag pob zeb, CLC blocks. Yog tias koj tab tom nrhiav superplasticizer, thov koj xav tias dawb rau tiv tauj peb.