1. Muaj thiab ua liaj ua teb tuj hnab
Lub hnab ntim khoom siv rau cov ntim ntim cov cement rau ntau dua 85% ntawm cov ntim ntim cement. Nrog rau txoj kev loj hlob thiab kev siv ntawm cov thawv ntim tau yooj yim, cov thawv ntim khoom siv dav siv hauv marine, tsheb thauj mus los, thiab ntim kev lag luam, thiab cov khoom ua liaj ua teb. Hauv kev ntim cov khoom ua liaj ua teb, lub hnab ntim tau dav siv los ua cov khoom ntim hauv dej, ntim cov nqaij qaib pub, thiab npog cov ntaub ntawv rau cov qoob loo cog qoob loo hauv cov liaj teb, ntxoov ntxoo, windproof, thiab mildew-proof sheds.
Cov khoom siv feem ntau siv rau kev ntim khoom: pub ton hnab, tshuaj ton hnab, putty hmoov ton hnab, urea ton hnab, zaub mesh hnab, txiv hmab txiv ntoo mesh hnab, thiab lwm yam.
2. Cov hnab ntim khoom noj
Cov nplej, hmoov nplej, thiab lwm yam ntim khoom noj tau maj mam siv hauv hnab.
Feem ntau tons ntawm lub hnab muaj xws li: nplej tons ntawm lub hnab, hmoov nplej tons ntawm lub hnab, pob kws tons ntawm hnab, thiab lwm yam.
3. Kev mus ncig thiab kev thauj mus los
Lub tsev pheeb suab ntaub ib ntus, ntau lub hnab mus ncig, thiab cov hnab mus ncig hauv kev lag luam ncig xyuas txhua yam muaj txheej txheej yas. Ntau yam tarpaulins tau dav siv los npog cov khoom siv rau kev thauj mus los thiab kev cia khoom, hloov cov paj rwb tarpaulins uas ua rau mob mildew thiab loj heev. Kev tiv thaiv netting kuj tau siv dav hauv cov yas braids.
Cov feem ntau muaj xws li: logistics hnab, logistics ton hnab, freight hnab, freight ton hnab, thiab lwm yam.
4. Cov khoom siv engineering
Txij li thaum txoj kev loj hlob ntawm pob zeb ntaub pib nyob rau hauv 1980s, daim ntawv thov ntawm cov yas braids tau nthuav dav. Nws yog dav siv nyob rau hauv kev tsim kho ntawm me me dej conservancies, hluav taws xob fais fab, txoj kev loj, railways, seaport mine kev tsim kho, thiab tsheb engineering. Nyob rau hauv cov dej num no, geosynthetic cov ntaub ntawv muaj lub luag hauj lwm ntawm filtration, drainage, reinforcement, cais, anti-seepage, thiab lwm yam. Yas geotextile yog ib tug hluavtaws geomaterial.
5. Cov ntaub ntawv tiv thaiv dej nyab
Cov ton hnab siv hauv cov pas dej, cov ntug dej hiav txwv, kev tsheb ciav hlau, thiab txoj kev yuav tsis tuaj yeem tsis muaj lub hnab ntim, uas yog, lub hnab ntim khoom siv rau kev tiv thaiv cov ntaub ntawv, tonbag siv rau drought nyem, thiab tonbag siv rau kev tswj dej nyab.
