Maas-kua txiv plaster

Lwm txoj hau kev sab nrauv thiab kho kom zoo nkauj ntawm phab ntsa yog siv ib lub cement-lime mortar rau plastering. Nws yog siv rau txojkev phab ntsa ua ntawm aerated qhob, pob zeb thiab av ci . Kiag li tsis siv hom tshuaj pleev xim rau cov pleev xim rau thiab pleev xim rau ntoo, zoo li rau cov phom sij ntawm txhua hom.

Txheeb ntawm cov cement-txiv qaub plaster

Xav txog cov txheej txheem ntawm cov cement-txiv qaub plaster. Lub ntsiab ntawm cov khoom no yog cov cement, txiv qaub thiab xuab zeb. Raws li lub hom phiaj ntawm daim ntawv thov, qhov feem ntawm qhov feem ntawm qhov feem ntawm cov cheebtsam yeej hloov tau. Tsis tas li ntawd xwb, koj tuaj yeem yuav cov khoom noj uas siv tau qhuav los ntawm kev ua lag luam thiab tsuas ntxiv dej kom pib, lossis koj tuaj yeem ua rau koj tus kheej. Nyob rau hauv cov ntaub ntawv no, koj yuav muaj peev xwm kom meej meej tshawb lub proportions uas yuav tsum tau. Piv txwv, nrog ib tug txo hauv kev sib koom ntawm MAAs thiab nce nyob rau hauv ib feem ntawm txiv qaub, cov khoom yuav poob nws lub zog, thiab feem ntau nce lub hardening lub sij hawm.

Cov yeeb yam ntawm cov cement-lime plasters

Cov yeeb yam ntawm cov cement-lime plasters muaj xws li hauv qab no:

1. Lub sij hawm ntawm daim ntawv thov ntawm cov tshuaj tiav yog los ntawm ib teev mus rau ob. Nws nyob ntawm lub khw thiab qhov sib luag proportional ntawm cov khoom nyob rau hauv cov khoom.
2. Adhesion los yog adhesion lub zog rau ntawm phab ntsa yog tsis pub tsawg tshaj 0.3 MPa.
3. Qhov kawg compression zog tsis tsawg tshaj 5.0 MPa.
4. Kev khiav hauj lwm kub -30 ° C mus rau + 70 ° C. Raws li qhov kev ntsuas ntawm no, qhov kev txwv loj tshaj yog muab. Qhov no tsis txhais tau hais tias qhov no luv yog qhov tseem ceeb rau cov kua qaub nplaum plasters nrog cov kab sau thiab muaj zog.
5. Cov khoom siv tau ntawm ib lub square meter nruab nrab ntawm 1.5 kg mus rau 1.8 kg nyob rau hauv ib tug txheej tuab ntawm 1 mm.
6. Cia yog hauv hnab. Txawm li cas los, thaum qhib lub hnab, nws raug nquahu kom siv nws sai. Txij thaum muaj qee yam ntawm ib puag ncig cov khoom muaj peev xwm tuaj yeem tuaj mus rau ib lub xeev tsis haum rau kev siv ntxiv (piv txwv li, tawv tawv los ntawm ya raws).

Nws pom zoo kom ua hauj lwm nrog cov cement-lime mortar rau plasters ntawm ambient kub ntawm + 5 ° C mus rau + 30 ° C. Thiab raws li kev cua tshuab tsis pub tsawg tshaj 60%. Nws yog qhov zoo yog tias thaum lub sij hawm ziab thiab zawm ntawm txheej nws yuav ua tau kom cov av qis nyob rau hauv thaj tsam ntawm 60% mus rau 80%. Thaum plastering ntawm lub chaav, nws yuav tsum tau ventilated ob zaug ib hnub, qhov no yuav pab tau rau lub zog hardening ntawm lub cement-txiv qaub mortar.