Raws li cov khoom siv tseem ceeb hauv kev tsim kho vaj tsev, kev ua haujlwm ntawm mortar yog ncaj qha ntsig txog qhov zoo thiab kav ntev ntawm lub tsev. Kev faib tawm raws li lub thickness ntawm cov xuab zeb nyob rau hauv lub mortar yog ib qho tseem ceeb hauv paus rau kev nkag siab thiab xaiv ib tug haum mortar. Cov hauv qab no yog cov lus piav qhia ntxaws txog yuav ua li cas mortars raug cais raws li thickness.
Ua ntej, cov hauv paus ntsiab lus ntawm kev faib cov mortar
Kev faib tawm ntawm mortar feem ntau yog muab faib raws li qhov loj me ntawm nws cov khoom siv, xuab zeb. Qhov luaj li cas ntawm cov xuab zeb ncaj qha cuam tshuam rau viscosity, fluidity, lub zog thiab lwm yam khoom ntawm mortar, yog li ntawd, raws li lub thickness ntawm cov xuab zeb, lub mortar yuav muab faib ua peb pawg: nplua mortar, nruab nrab mortar thiab coarse mortar. Txoj kev faib tawm no pab cov neeg tsim kho kom xaiv hom mortar raws li qhov tshwj xeeb engineering xav tau.
Thib ob, nplua mortar
1. Cov ntsiab lus thiab yam ntxwv
Fine mortar yog hais txog lub mortar nrog me me particle loj ntawm cov xuab zeb, thiab cov particle loj ntawm nws cov xuab zeb feem ntau yog nyob nruab nrab ntawm {{0}}.15 hli thiab 0.5 hli (nws kuj yog. hais tias qhov luaj li cas ntawm cov xuab zeb zoo nyob nruab nrab ntawm 0.05-0.1 hli, tab sis xav txog kev siv universality ntawm kev siv, cov lus qub yog siv ntawm no). Qhov sib piv ntawm cov xuab zeb rau cov cement hauv cov mortar zoo feem ntau yog 1: 1 lossis 2: 1, uas ua rau cov khib nyiab zoo muaj cohesiveness thiab plasticity.
2. Scope ntawm daim ntawv thov
Vim nws cov yam ntxwv ilv, nplua mortar yog haum rau engineering qhov chaw uas yuav tsum tau siab rau nto flatness, xws li lub sab hauv thiab sab nrauv tiav ntawm lub tsev, plastering txheej, thiab lwm yam nyob rau hauv kho kom zoo nkauj engineering, nplua mortar yuav tsim ib tug du, tiaj nto thiab txhim kho. kev zoo nkauj ntawm lub tsev.
3. Qhov nruab nrab mortar
1. Cov ntsiab lus thiab yam ntxwv
Qhov luaj li cas ntawm cov xuab zeb ntawm nruab nrab mortar yog nruab nrab ntawm cov mortar nplua thiab coarse mortar, thiab nws cov particle loj ntau yog roughly {{0}}.5 hli mus rau 1 hli (nws tseem hais tias cov particle. qhov loj ntawm cov xuab zeb nruab nrab yog nyob nruab nrab ntawm 0.1-0.5 hli, tab sis txhua yam xav tau, qhov ntau ntawm no yog ntau inclined rau qeb ntawm cov xuab zeb zoo, yog li cov lus qub tau siv ntawm no). Qhov sib piv ntawm cov xuab zeb rau cement nyob rau hauv nruab nrab mortar feem ntau yog 2: 1 los yog 3: 1, uas ua rau cov mortar nruab nrab muaj fluidity thiab operability thaum tuav ib co cohesiveness.
2. Scope ntawm daim ntawv thov
Mortar yog dav siv nyob rau hauv masonry ntawm cov phab ntsa zoo tib yam, kev tsim kho ntawm cov phab ntsa thiab lwm yam sij hawm. Nws qhov me me me me thiab kev ua tau zoo ua rau cov mortar nruab nrab tsis tsuas yog ua tau raws li kev xav tau ntawm kev tsim kho, tab sis kuj ua kom lub zog tag nrho thiab ruaj khov ntawm phab ntsa.
Plaub, coarse mortar
1. Cov ntsiab lus thiab yam ntxwv
Cov xuab zeb ntawm coarse mortar muaj qhov loj tshaj plaws particle loj, feem ntau ntawm 1 hli thiab 5 hli. Qhov sib piv ntawm cov xuab zeb rau cov cement hauv coarse mortar feem ntau yog 3: 1 lossis 4: 1, uas ua rau coarse mortar muaj cov ntsiab lus ntau dua thaum nplawm, yog li txhim kho lub zog thiab kav ntev ntawm cov mortar. Tab sis sib xws, fluidity thiab plasticity ntawm coarse mortar yog qhov tsis zoo, thiab xav tau kev ya raws ntau los tswj nws cov kev tsim kho.
2. Scope ntawm daim ntawv thov
Vim nws lub zog zoo thiab ua haujlwm ntev, ntxhib mortar tshwj xeeb tshaj yog tsim rau cov phab ntsa hauv lub hauv paus, cov phab ntsa thauj khoom thiab lwm qhov chaw uas yuav tsum tau muaj kev txhawb zog siab. Nyob rau hauv lub hauv paus engineering, ntxhib mortar tuaj yeem tiv thaiv sab nraud thiab deformation, ua kom lub tsev ruaj khov.
