1. Muaj thiab ua liaj ua teb tuj hnab
Siv rau kev ntim cov cement, suav txog ntau dua 85% ntawm cov ntim cement ntau. Nrog rau txoj kev loj hlob thiab kev siv cov hnab ntim khoom hloov tau yooj yim, cov hnab ntim khoom siv tau dav siv hauv marine, tsheb thauj mus los, thiab ntim kev lag luam, thiab cov khoom ua liaj ua teb. Nyob rau hauv lub ntim ntawm cov khoom ua liaj ua teb, lub hnab yas tuj tau siv dav los ua cov khoom ntim rau cov khoom siv dej, ntim cov nqaij qaib noj, ua liaj ua teb, thiab ntxoov ntxoo, windproof, thiab mildew-proof sheds rau kev cog qoob loo. 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 lub hnab ntim khoom. Feem ntau tons ntawm lub hnab muaj xws li: nplej tons ntawm hnab, hmoov nplej tons ntawm lub hnab, pob kws tons ntawm hnab, thiab lwm yam tons ntawm hnab.
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 ntaub ntawv 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 haujlwm no, geosynthetics muaj cov haujlwm ntawm kev pom, kev tso dej, kev txhawb zog, kev sib cais, kev tawm tsam, thiab lwm yam. Yas geotextile yog cov khoom siv hluavtaws.
5. Cov ntaub ntawv tiv thaiv dej nyab
Lub hnab ntim khoom siv hauv cov pas dej, cov ntug dej hiav txwv, kev tsheb ciav hlau, thiab txoj kev tsis tuaj yeem tsis muaj lub hnab ntim khoom, uas yog, lub hnab ntim khoom siv rau kev tiv thaiv cov ntaub ntawv, ton hnab siv rau kev tiv thaiv drought, thiab tonbag siv los tswj dej nyab.