Dab tsi yog qhov cuam tshuam ntawm Superplasticizer ntawm Compressive Strength ntawm pob zeb?

Dab tsi yog qhov cuam tshuam ntawm superplasticizer ntawm compressive lub zog ntawm pob zeb?

Ntawm cov lus nug no, vim li cas cov polycarboxylate superplasticizers muaj zog heev rau lub zog compressive ntawm pob zeb.

Kuv kawm los ntawm ib qho kev sim nyob rau hauv ib tsab xov xwm Cov nyhuv ntawm polycarboxylate superplasticizer ntawm cov pob zeb muaj zog uas siv cov superplasticizers txhim kho lub zog compressive ntawm pob zeb los ntawm kev txo cov dej siv.
Tab sis peb tuaj yeem hais ua ntej, peb lub Hoobkas polycarboxylate superplasticizer 50% cov ntsiab lus ntawm cov qauv ntawm cov ntaub ntawv kuaj kua, feem ntau siv li 500g ntawm cov kua los ua cov qauv kuaj ua cov xuab zeb ntws, raws li lub Hoobkas ntawm cov txheej txheem kev cai:
Lus Cim 1. Kev faib ua feem: cement 450g; xuab zeb nruab nrab: 900 g; wb: 180g
Lus Cim 2. Qhov sib piv saum toj no cov xuab zeb ntau npaum li cas tuaj yeem hloov kho raws li qhov kev txiav txim siab zoo.
Lus Cim 3. Tsis tshua muaj pov thawj thiab tsis muaj cov dej tsis muaj dej txo cov neeg sawv cev cov khoom pib nthuav dav tswj ntawm: 260 ± 10mm, cov khoom pov thawj siab yuav tsum tau tswj ntawm 245mm, raws li kev sim cement net slurry fluidity poob loj, kho qhov poob. Lub sij hawm ntsuas: xws li 30min, 45min, 90min, 120min.

Peb ua raws li lub Hoobkas pom zoo ntau npaum li cas: 0.2-0.6%.
Admixture 0.4%, kev sim ntsuas dej txo tus nqi Ntau dua lossis sib npaug li 25%, Slump variation hauv
1 teev (mm) / Txuj: 100% / hli, Tsawg dua lossis sib npaug li 80 .
Feem ntau muaj 12 yam ntawm cov ntaub ntawv xeem.
Cia peb saib ncaj qha ntawm lub zog compressive ntawm no.

Tos kom cov pob zeb ua kom ruaj khov, 1 hnub ntawm kev sim txhawm rau txhim kho lub zog compressive qib siab dua lossis sib npaug ntawm 170%, vim tias kev nkag siab ntawm qhov zoo tib yam silicate cement zog qib 42.5, 3 hnub tom qab lub zog compressive ntawm ntau dua lossis sib npaug. 160%, 7 hnub ntawm compressive zog yog ntau dua los yog sib npaug rau 150%.
Los ntawm no peb tuaj yeem pom tias kev siv cov dej ua haujlwm siab txo tus neeg sawv cev siv hauv kev tsim kho vaj tse, yog los txhim kho lub zog compressive ntawm qib pob zeb, txo cov dej haus, uas yog, txhim kho lub zog compressive ntawm pob zeb cement nws tus kheej lub zog compressive. qib.
Thiab txo tus nqi ntawm cov dej siv thiab kev sib tov, sib tov ntau dua, tus nqi txo cov dej yuav sim qee qhov siab dua, tab sis tsis ntau tshaj li cov kws tshaj lij engineers pom zoo kom sib tov ntau, txwv tsis pub nws yuav cuam tshuam rau kev siv cov pob zeb ua haujlwm, nrog rau lub zog. qib.

Raws li peb tuaj yeem pom, kev siv cov dej-txo tus neeg sawv cev tom qab cov pob zeb cement, kev tsim kho kev ua haujlwm zoo dua, yooj yim dua thiab yooj yim, cement qhob slump tuav lub sijhawm.