Txoj kev thiab cov kauj ruam:
1. Kev npaj pavement: Ua ntej pib tsim kho, cov pavement yuav tsum tau npaj. Qhov no suav nrog kev ntxuav cov khib nyiab thiab plua plav ntawm txoj kev pavement thiab xyuas kom cov pavement tiaj tus.
2. Kev kho lub hauv paus: Ua ntej kev tsim kho pavement, lub hauv paus yuav tsum tau kho. Qhov no tej zaum yuav suav nrog kev sau cov poholes thiab kho cov kab nrib pleb, thiab ua kom ruaj khov thiab flatness ntawm lub hauv paus.
3. Lub hauv paus txheej paving: Tom qab txheej txheej yog kho, lub hauv paus txheej tuaj yeem paving. Lub hauv paus txheej yog feem ntau paved nrog coarse pob zeb thiab ces compacted. Cov kauj ruam no yog siv los ntxiv dag zog rau lub peev xwm ntawm txoj kev pavement.
4. Nruab nrab txheej paving: Tom qab lub hauv paus txheej yog kho, nruab nrab txheej yuav paving. Cov txheej nruab nrab feem ntau yog paved nrog cov pob zeb zoo lossis asphalt sib tov thiab compacted.
5. Nto paving: Tom qab cov txheej txheem nruab nrab raug kho, txheej txheej tuaj yeem ua pa. Cov txheej txheej saum npoo yog txheej uas feem ntau cuam tshuam nrog cov tsheb thiab cov neeg taug kev, yog li kev sib xyaw asphalt zoo yuav tsum tau xaiv rau paving.
6. Compaction: Tom qab paving, compaction ua hauj lwm yuav tsum tau. Txoj kev saum npoo yog compacted los ntawm kev siv cov khoom siv xws li cov chais kom ntseeg tau tias kev ruaj ntseg thiab flatness ntawm txoj kev nto.

Nco tseg:
1. Tshawb xyuas cov huab cua ua ntej kev tsim kho kom tsis txhob muaj kev tsim kho nyob rau hnub los nag lossis kub heev.
2. Ua tiav kev tsim kho raws li kev tsim qauv thiab cov lus qhia tshwj xeeb kom ntseeg tau tias kev tsim kho kom zoo raws li qhov yuav tsum tau ua.
3. Ua tib zoo saib xyuas kev nyab xeeb ntawm qhov chaw tsim kho, teeb tsa cov cim ceeb toom, thiab ua kom muaj kev nyab xeeb tsim nyog los tiv thaiv kev sib tsoo.
4. Kev tswj xyuas tsheb tsim nyog yuav tsum tau ua thaum lub sijhawm tsim kho kom muaj kev nyab xeeb ntawm cov tsheb thiab cov neeg taug kev.
5. Txheeb xyuas qhov kev tsim kho kom zoo tsis tu ncua thiab ua haujlwm kho thiab tu kom ntev li ntev tau ntawm txoj kev.