Pob zeb cib yog cov khoom siv hauv tsev uas siv thoob plaws ntiaj teb. Lawv muaj ntau qhov zoo dua piv rau lwm cov khoom siv hauv tsev: lawv ruaj khov, yooj yim ua haujlwm nrog, thiab pheej yig. Tab sis li cas cov pob zeb ua pob zeb ua?
Thawj kauj ruam hauv kev ua cov pob zeb ua pob zeb yog sib tov cov pob zeb. Qhov no suav nrog kev sib xyaw cov cement, xuab zeb, thiab dej hauv qhov sib npaug. Qhov sib tov yuav tsum sib xws thiab tsis muaj lumps los xyuas kom meej tias cov cib zoo ib yam ntawm qhov loj thiab lub zog.
Tom ntej no, qhov sib tov yog poured rau hauv ib lub pob zeb cib tshuab. Cov duab ntawm cov pwm yuav txiav txim siab qhov loj thiab cov duab ntawm cov cib. Tom qab ntawd cov pwm yog vibrated kom tshem tawm cov pa tawm ntawm qhov sib tov thiab xyuas kom meej tias nws puv txhua feem ntawm cov pwm. lub tshuab ntim cov pob zeb thaiv pwm nrog cov mortar, tom qab ntawd nias lub pwm sab saud mus rau hauv qab pwm nrog lub siab.
Thaum kawg, cov cib tau npaj siv rau hauv kev tsim kho. Lawv tuaj yeem muab tso ua ke, tso rau hauv cov qauv, lossis siv nrog rau lwm cov ntaub ntawv hauv tsev los tsim cov qauv ntawm txhua daim duab thiab qhov ntau thiab tsawg. Thiab vim hais tias lawv yog tsim los ntawm cov pob zeb, lawv tiv taus hluav taws, ya raws, thiab lwm yam ib puag ncig uas tuaj yeem ua rau puas tsuaj.
Zuag qhia tag nrho, cov txheej txheem ntawm kev ua pob zeb cib yog ncaj nraim thiab yooj yim. Nws yuav tsum muaj kev sib xyaw ntawm cov ntaub ntawv, kev ntsuas meej, thiab ua tib zoo saib xyuas kom meej. Tab sis qhov kawg tshwm sim yog ntau yam khoom siv hauv tsev thiab txhim khu kev qha uas tseem ceeb rau kev tsim kho kev lag luam. Txawm hais tias koj tab tom tsim lub tsev tshiab, lub tsev lag luam, lossis pej xeem cov qauv, pob zeb cib yog ib qho tseem ceeb ntawm cov txheej txheem.