Puas yog koj tseem niaj hnub muab cov log tsheb hloov ntawm cov khw muag khoom? Los ntawm kev ua lawv rau hauv cov hmoov roj hmab nrog cov khoom siv khib nyiab, lawv muaj ntau yam kev siv. Tom qab cov log tsheb khib nyiab tau muab tso rau hauv cov hmoov los ntawm cov khoom siv khib nyiab pov tseg thiab cov xaim hlau raug sib cais, cov khoom siv ntawm cov roj hmab tau khaws cia, ua rau nws siv dav hauv ntau qhov chaw, xws li:
1. High- roj hluav taws xob: Cov roj hlawv roj ua kom lub zog hluav taws xob nrog cov nqi calorific siab dua li cov thee, txo cov kev cia siab ntawm cov khoom siv hluav taws xob ib txwm muaj thiab txo cov pa phem ib puag ncig.
2. Hloov kho asphalt txoj kev tsim kho: Roj hmab hmoov uas tsim los ntawm cov khoom siv khib nyiab pov tseg yog siv los ua kev hloov kho ntxiv rau asphalt, muab txoj kev ua haujlwm zoo heev. Ntxiv nrog rau kev txhim kho siab - qhov kub thiab txias, kev tiv thaiv tawg, dej tsis kam, thiab adhesion ntawm pavement, nws kuj pab txo cov suab nrov.
3. Waterproof membranes: Ntxiv rau cov nqi tsim khoom, nws ua kom muaj kev ua tau zoo ntawm cov dej tsis zoo.
4. Cov khoom siv roj hmab: Cov hmoov log tsheb, ua cov khoom zoo siab - zoo, tuaj yeem txhim kho lub zog, hnav tsis kam, thiab kev laus ua haujlwm ntawm cov khoom siv roj hmab thaum txo nqi. Nws tuaj yeem siv los tsim ntau yam khoom siv roj hmab, xws li cov kav dej roj hmab thiab cov roj hmab foob.
5. Cov chaw ua si kis las: Haum rau cov roj hmab lem, cov chaw ua si, cov nyom dag, thiab lwm yam, muab cov txiaj ntsig zoo xws li kev poob siab thiab txo suab nrov.
6. Ntxiv cov hmoov roj hmab rau lwm cov khoom: xws li lub tsheb nres tsheb, nplaim taws - cov khoom siv tsis zoo, cov ntaub ntawv tsis zoo, cov roj hmab thiab cov yas, lub qhov rais sealing strips, thiab lwm yam.
