Lub hauv paus ntsiab lus ntawm cov qhob retarder yog dab tsi? Deceleration lub sijhawm thiab kub
Apr 29, 2021
Lub hauv paus ntsiab lus ntawm cov qhob retarder yog dab tsi? Deceleration lub sijhawm thiab kub
Retarder, retarder thiab admixture tuaj yeem ncua sijhawm kev teeb tsa ntawm pob zeb thiab tsis muaj qhov cuam tshuam rau lub zog tom qab. Lub ntsiab cov khoom xyaw yog polyhydroxyl tebchaw, hydroxyl carboxylic acid ntsev thiab nws cov derivatives thiab siab qab zib lignosulfonate, vim tias nws muaj cov nyhuv ntawm txo cov dej, yog li nws tseem hu ua retarder dej reducer. Tsis tas li ntawd, qee qhov ntsev inorganic xws li zinc chloride, borates thiab ntau yam phosphates kuj muaj qhov cuam tshuam.
Tus zom zaws yog qhov tsim nyog rau kev ua kom tsis tu ncua, ua pob zeb, ua vaj tse pob zeb, npaj ua pob zeb ua ke thiab pob zeb ua pob raws li kub.
Magnesite cementitious cov ntaub ntawv tso tawm ntau cov cua sov thaum lawv hydrate. Qee cov khoom lag luam ncav cuag 80 qib hauv lub caij ntuj sov thaum qhov kub siab. Thaum cov khoom kub dhau dhau lawm, cov khoom lag luam tawm tsis yog 5.1.8 theem, tab sis 9.1.5 theem, tsis ruaj khov. Ntxiv mus, kev siv tsis yog loj. Thaum lub ntsuas kub dhau lawm, cov khoom tsim cov hlau nplaum yuav tshwm sim halogen rov qab, deformation, tsis tshua muaj zog cov teeb meem. Txoj kev daws tam sim no yog ntxiv cov qeeb qeeb kom ua kom dej tawg ntawm dej kom sov thiab tswj lub sijhawm.
Xyoo 2005, cov qauv kev lag luam txheem WB / T 1023-2005 ntawm Cov Neeg' s koom pheej ntawm Tuam Tshoj tau tshaj tawm, uas tau txhais tawm qeeb qeeb ua ib qho kev ntxiv uas tuaj yeem ncua sijhawm teeb tsa ntawm magnesite cementifying khoom.
cuam tshuam
Lub hom phiaj tias retarding coagulant ntxiv rau hauv cov khoom lag luam yog ua kom ntev ntawm dej tsis ua kom lub sij hawm ntawm cov cement, tswj cov plasticity ntawm cov khoom sib xyaw tshiab rau lub sijhawm ntev, kho lub sijhawm lub sijhawm ntawm cov pob zeb sib tov tshiab.
Kev ntsuas kom paub
Flow rate nce: 8 lub sijhawm pib lub sijhawm sib txawv: 60 ~ 120 compressive zog piv 7 hnub: 120 compressive zog piv 28 hnub: 120 softening coefficient: 0.55
