Yuav kom ua tau raws li qhov xav tau ntawm cov neeg xav tau ntau dua thiab txhawb cov neeg siv khoom xaiv cov khoom siv cib, cov khoom siv tsis siv lub tshuab cib yuav tsum tau hloov kho tas li kom siv cov kev hloov pauv ntawm kev lag luam. Tam sim no qhov tshwm sim ntawm hom tshiab ntawm cov khoom siv tsis siv lub tshuab cib, kom cov khoom siv cib ua kom muaj yeeb yuj.

Cov xim ntawm hom tshiab uas tsis yog hlawv cib tshuab cov cuab yeej zoo nkauj dua. Cov xim dawb cib tshuab cov khoom siv yog cov yeeb yuj, uas tau qhib txoj kev tshiab hauv kev tsim cov khoom siv tshuab cib tsoos. Peb yuav tsum paub tias txoj kev loj hlob ntawm tej yam tsis tuaj yeem ua yam tsis muaj lub zog ntawm kev tsim kho tshiab, uas yog, cov xim tshiab tau muab tso rau hauv lub tshuab cib ib txwm, thiab cov khoom siv cib dawb tau yug los, thiab cov xim cib paving rau ntawm txoj kev yog qhov tseem ceeb tshwj xeeb zoo nkauj, nws zoo nkauj zoo nkauj ua raws li cov yam ntxwv ntawm kev zoo nkauj ntawm ib puag ncig, tab sis nws cov txheej txheem ntau lawm tsis paub txog ntau tus neeg.

Cov txheej txheem tsim cov xim pob zeb tsis yog qhov nyuaj heev. Nws yuav luag tib yam li cov tsoos pob zeb ntau lawm. Koj tsuas yog yuav tsum sib tov cov xim ntawm cov xim koj xav tau, thiab tom qab ntawd koj tuaj yeem ua xim koj xav tau. Tam sim no, cov xim tsis hlawv cib tshuab ntawm kev ua lag luam muaj cov txheej txheem thib ob. Tom qab txhim kho cov txheej txheem no, koj tsuas yog yuav tsum tau nruab cov txheej txheem ntau lawm kom ntxiv ntau yam xim Xim, txoj kev yog qhov yooj yim heev, qhov no yog qhov loj tshaj plaws ntawm cov xim cib tshuab, tom qab tso hom kev cib no, koj yuav pom tias nws muaj ntau yam zoo, xws li lub zog siab, zoo hnav tsis kam, rau thaj tsam uas muaj nag ntau, nws muaj zog dej permeability, thiab hnav tsis kam yog qhov zoo ntawm cov xim cib, thiab lwm yam. cov ntaub ntawv raw yog cov cement, aggregate, pigment thiab additives, uas tuaj yeem tsim cov xim koj xav tau. Nyob rau hauv xyoo tas los no, nrog rau txoj kev loj hlob ntawm nroog loj nyob rau hauv Suav teb, kev tsim kho ntawm nroog, vaj, thaj chaw nyob thiab lwm yam yuav tsum tau paving nrog paving cib. Tom qab muaj xim ci ci, los ntawm cov duab sib txawv ntawm txhua lub cib thiab kev sib xyaw ntawm ntau yam xim, cov nyhuv tshwj xeeb tuaj yeem tsim Cov neeg muaj kev nkag siab tob txog cov xim sib txawv ntawm txoj kev cib, nws muaj qhov zoo nkauj zoo nkauj rau tib neeg saib, ntxiv rau, nws muaj lub luag haujlwm zoo hauv kev txhawb kev zoo nkauj ntawm txoj kev hauv nroog.

Qhov tseem ceeb tshaj plaws yog cov xim uas tsis yog hlawv cib tshuab khoom. Kev tsim kho cov khib nyiab uas tsis yog hlawv cib tshuab muaj qhov kev faib tawm thib ob. Ntau yam xim tuaj yeem ntxiv thaum txhim kho cov txheej txheem ua haujlwm ntau lawm. Yog tias nws yog thawj zaug los yuav cov khoom siv tshuab cib,