Lub hauv paus ntsiab lus ntawm masonry mortar masonry mortar yog ib qho tseem ceeb ntawm lub tsev, tsuas yog los xyuas kom meej tag nrho cov zoo ntawm kev sib txuas, lub tsev thiab stability. Muaj ntau yam uas cuam tshuam rau lub zog. Yog tias ib qho khoom siv hauv qhov sib xyaw ua ke tsis txaus, lossis qhov muaj pes tsawg leeg tsis txaus, nws yuav cuam tshuam rau tag nrho cov khoom zoo, txhawm rau tsim cov khoom ntawm cov qauv ntawm lub zog, nws yog ib qho tsim nyog yuav tsum tuav cov khoom specification, kom muaj nuj nqis, qauv thiab hais txog, kom cov khoom sib txawv tuaj yeem muab sib xyaw rau hauv ib qho kev faib ua feem. Tus nqi ntawm cov xuab zeb siv nyob rau hauv qhov sib tov piv ntawm masonry mortar yog kho tsis tu ncua raws li qib zog. Yog tias cov qib zog sib txawv, nws yuav tsum tau kho cov xuab zeb rau txhua lub cubic meter ntawm mortar hauv lub sijhawm kom ntseeg tau tias cov xuab zeb tau raws li cov qauv tsim, kom ua tau raws li qhov xav tau ntawm kev tsim kho, txuag cov nqi tsim kho. Nws yog pov thawj los ntawm kev xyaum hais tias tus nqi ntawm cov cement siv nyob rau hauv tsawg-lub zog mortar yog tsawg tshaj li nyob rau hauv high-strength mortar. Txhawm rau kom tau txais cov mortar zoo, peb yuav tsum tau cement thiab cov xuab zeb qhuav los ntawm qee qhov kev xaiv, thiab tom qab ntawd ntxiv cov dej kom tsim nyog rau kev sib tov, thiaj li tsim ib lub mortar, mortar ntim yuav txo tau li ntawm 10%; Feem ntau, qhov siab dua qib ntawm mortar, qhov ntau npaum li cas ntawm cov cement siv, cov cement tov rau hauv mortar yuav nce qhov ntim. Tus nqi ntawm cov dej rau ib chav tsev cuam tshuam qhov fluidity ntawm mortar. Tsuas yog cov mortar uas tsim nyog cov dej tuaj yeem ua kom muaj qhov sib xws ntawm cov mortar thiab ua tau raws li cov cai ntawm kev tsim kho. Qhov sib tov sib piv ntawm masonry mortar feem ntau yog txiv qaub-xuab zeb piv. Tsuas yog thaum tus nqi ntawm cov cement thiab xuab zeb tau tswj tau tag nrho, thiab qhov kev faib ua feem ntawm ob qho tib si tuaj yeem ua kom muaj zog ntawm cov ntaub ntawv siv los ua kom muaj kev tsim kho zoo.
Qhov tsim nyog thiab kev siv cov cement yog qhov ua ntej kom lav qhov zoo ntawm cov cement. Tus nqi ntawm cov cement yog hloov nrog lub zog qib ntawm mortar, los txiav txim seb tus nqi ntawm cov cement, ob qho tib si sib cuam tshuam, uas yog, qib siab dua ntawm cov cement ntau dua, cov cement ntau dua, thiab vice versa. Xaiv tus nqi ntawm cov cement thiab ua raws li lub hauv paus ntsiab lus ntawm tsawg npaum li cas ntawm cov cement tuaj yeem ua rau cov dej tuav ntawm cov mortar ntxiv, txhim kho cov dej tuav kev ua tau zoo ntawm mortar, tsis txhob tawg ntawm cib masonry, thiab ua kom zoo ntawm kev tsim kho. Xuab zeb fineness kuj muaj qhov cuam tshuam ncaj qha rau cov cement, qhov me dua qhov zoo, qhov loj dua cov av nkos, xuab zeb fineness modulus nruab nrab ntawm 2.3 ~ 3.0, kom ntseeg tau tias cov av nkos hauv mortar mix ratio tsawg dua 5%. Cov xuab zeb nruab nrab siv hauv masonry mortar yog cov khoom siv zoo tagnrho. Nws tsis tuaj yeem siv cov xuab zeb zoo lossis cov xuab zeb ntxiv kom tsis txhob muaj adhesion tsis txaus thiab cuam tshuam rau kev tsim kho zoo.
Cov kev ntsuas kev tswj hwm kev siv cov cement tuaj yeem ua tiav lub hom phiaj ntawm kev tsim kho zoo tsuas yog tias cov txheej txheem tsim nyog. Cement ntau npaum tswj yog tus yuam sij los xyuas kom meej qhov sib tov ntawm masonry mortar. Ib qho yog kev siv qhov hnyav ntawm cov cement hnyav, los ntawm kev ntsuas zoo, ua kom muaj txiaj ntsig zoo ntawm cov cement, kom cov concentration ntawm cov cement yog tswj, feem ntau cov cement tswj hauv 2%. Qhov thib ob, qhov chaw tsim kho yuav tsum siv cov ntsuas ntsuas qhov sib xws ntawm qhov sib luag, kev tshuaj xyuas zoo ntawm cov khoom siv tshuaj khib nyiab los txiav txim qhov kev faib ua feem tsim nyog. Qhov thib peb yog txwv lub sijhawm sib xyaw ntawm cov cement. Txhawm rau teem sijhawm nruj me ntsis, kom ua tau raws li lub sijhawm sib xyaw tsis pub tsawg dua 2 feeb ntawm tus qauv, hauv kev sib xyaw ua ke, yuav tsum tau tswj kev ceev, impurities tshem tawm, kom tsis txhob muaj cov kua qaub ntau dhau los cuam tshuam lub zog. Tom qab sib tov, qee cov ntaub ntawv yuav tsum tau siv thaum ntxov li sai tau, thiaj li tsis cuam tshuam rau tag nrho lub zog. Plaub, kev siv lub ntsiab lus ntawm cov khoom siv ntxiv. Yog tias koj xav siv cov khoom siv ntxiv, koj yuav tsum ua raws li cov qauv nruj me ntsis, yuav tsum muaj kev sim nruj, muaj cov txheej txheem kev tshawb fawb los txhawb. Thib tsib, kom tau raws li qhov xav tau tiag tiag. Cov kev tsim kho sib txawv, cov qauv ntawm cov mortar sib txawv, raws li qhov chaw tsim kho qhov teeb meem, tsim nyog kev hloov ntawm cov cement noj, kev kho kom zoo ntawm cov khoom sib xyaw, vim tias qhov sib tov sib xyaw tsis ruaj khov, raws li ntau yam ntawm cov cement, qib, kev hloov kho, ua lub luag haujlwm.
Post lub sij hawm: Lub Xya hli ntuj-20-2023