Txawm hais tias nws tab tom tsim txoj kev, txuas hniav lossis tunnels - pob zeb yog cov khoom siv hauv tsev ntau yam thiab tuaj yeem siv rau hauv koj lub vaj. Ua-nws-yourselfers feem ntau nug lawv tus kheej cov lus nug ntawm tus nqi.
Different types of concrete
Kev tsim cov khoom tuaj yeem ua tau ntau yam. Nyob ntawm cov khoom siv hauv tsev, muaj cov khoom sib txawv ntawm cov khoom kawg thiab yog li qhov zoo thiab qhov tsis zoo. Nws yog li ntawd ua rau kev txiav txim siab los tham txog yam twg yog qhov tsim nyog rau koj tus kheej qhov project ua ntej tawg hauv av. Yeej, qhov sib txawv yog tsim los ntawm cov pob zeb uas npaj txhij, cov pob zeb tshiab thiab cov pob zeb npaj txhij.
Ntxiv rau cov hom kev ua vaj tse classic, nyob ntawm qhov project hauv tsev, muaj ntau cov kab txawv txawv uas muaj cov khoom zoo rau lub tsev tsim khoom. Kev sib txawv yog tsim los ntawm hom hauv qab no:
- Fiber pob zeb: Kuj tseem muaj cov yas, textile, iav lossis steel fibers rau cov khoom uas tau hais tseg
- Lub teeb yuag:Tshwj xeeb lub teeb yuag vim lub hnab ntim cua
- Heavy concrete: Siab hnyav ua tsaug ntau ntau
- Solid concrete: Cov khoom uas muaj lub zog siab C55/67 – C100/115
- Aerated qhob: Cov txheej txheem tsim tshwj xeeb ua kom muaj huab cua tsis zoo hauv cov khoom kawg
- Cov pob zeb nthuav tawm: Muaj qhov tshwj xeeb zoo nkauj ua tsaug rau daim tawv nqaij muaj tswv yim
- Prestressed pob zeb: Me me tawg dav ua tsaug rau cov prestressed steel
- Reinforced qhob: Steel inserts ua los ntawm mats thiab xov hlau kom muaj zog tensile siab
Ready-mix concrete
Cov khoom no mus txog qhov chaw tsim kho tshiab. Cov khoom yog sib sau ua ke nyob rau hauv ib qho kev cog qoob loo, los ntawm lub pob zeb loader lossis lwm lub tsheb uas tsim nyog xa cov khoom. Ntau cov pob zeb siv niaj hnub no yog npaj txhij-sib xyaw ua ke vim nws qhov zoo ib yam thiab qhov ntim ntawm cov khoom npaj siv tau ua rau nws tsim nyog rau cov haujlwm loj, xws li nchuav lub hauv paus loj. Tus neeg tsim khoom nws tus kheej yog lub luag haujlwm rau cov khoom.
Fresh concrete
Cov pob zeb tshiab yog qhov sib xyaw ntawm tus kheej los ntawm qhov chaw tsim kho. Nws muaj tag nrho cov khoom xyaw li niaj zaus, tab sis feem ntau tsis muaj cov khoom siv ntxiv xws li cov uas siv rau hauv cov pob zeb sib xyaw ua ke los yog npaj-mixes rau cov khoom txhim kho. Txoj kev ua haujlwm tsis raug cai tuaj yeem muaj teeb meem thaum lub sijhawm tsim khoom, ua rau cov txiaj ntsig tsis sib xws thiab ua rau muaj kev puas tsuaj rau qhov kev tsim kho vim muaj cov khoom sib txawv ntawm cov pob zeb ua ke.
Precast qhob
Yeej, tag nrho cov pob zeb muaj peb yam khoom xyaw: dej, cement thiab gravel. Cov khoom sib xyaw ua ke hauv lub khw muag khoom kho vajtse yog tsim los ntawm cov chaw tsim khoom tiag tiag daim ntawv qhia thiab cog lus zoo ib yam. Cov khoom no muaj nyob rau hauv cov khw muag khoom kho vajtse ua cov khoom qhuav hauv ib lub hnab thiab muaj cov khoom nram qab no:
- Cement
- Aggregate
- Concrete admixtures (sealants thiab stabilizers)
- Concrete additives (xim pigments, steel fibers, hluavtaws cob, ya tshauv, silicate plua plav, tuff)
- dej
Tip:
Cov khoom sib xyaw ua ke yog cov khoom zoo meej. Cov chaw tsim khoom cov lus qhia txog kev ntxiv dej yuav tsum tau ua raws li nruj me ntsis raws li qhov no yog tib txoj hauv kev los lav qhov ruaj khov thiab zoo ntawm cov khoom kawg.
Prices per cubic meter
Tau kawg, muaj qhov sib txawv ntawm tus nqi sib txawv ntawm tus kheej hom pob zeb. Yam khoom twg tsim nyog tshaj plaws thaum kawg nyob ntawm qhov kev tsim kho qhov project. Npaj-sib xyaw ua ke yog qhov kev daws teeb meem zoo tshaj plaws rau kev tsim kho loj dua, tsis yog ntawm cov nqi xwb tab sis kuj yog los ntawm kev pom. Nruam concreting ntawm loj pem teb slabs los yog foundations yog ib qho nyuaj rau ua tiav los ntawm kev ua koj tus kheej pob zeb. Kev sib tov npaj ua tiav tsuas yog tsim nyog rau kev tsim kho me me xwb.
Cov khoom zoo dua, qhov ntau yam ntawm daim ntawv thov. Tus nqi tshwm sim los ntawm qhov xwm txheej thiab tus kheej xav tau. Qhov nruab nrab, txawm li cas los xij, cov khoom sib xyaw muaj nyob hauv cov khw muag khoom kho vajtse. Cov hnab feem ntau mus hla lub txee muag khoom nrog cov ntsiab lus ntawm 25 kilograms. Cov chav me me muaj nyob ntawm cov khw muag khoom kho vajtse rau nyiaj me me:
- Craft pob zeb: 13 euros rau 3.5 kilograms
- Kneaded qhob: 10 euros rau 2.5 kilograms
- Concrete screed: 7 euros rau 25 kg
- Hloov ua vaj tse: 6 euros rau 25 kilograms
- Foundation concrete: 3 euros 25 kg
Compressive zog
Qhia tus nqi raws li lub cubic meter yog ib qho kev coj ua hauv ntau qhov chaw. Xws li tus nqi feem ntau yog muab rau tib lub sijhawm raws li lub zog compressive. Qhov nruab nrab, cov nqi hauv qab no ua rau cov khoom sib xyaw ua ke nrog lub zog siab:
- C40/50: 105€/m³
- C35/45: 95€/m³
- C30/37: 87€/m³
- C16/20/25: 77 € / m³
- C12/15: 71€/m³
- C8/10: 66€/m³
Quantity calculator for ready-mixed concrete
Qee lub tuam txhab qhia rau ntawm lub hnab raws nraim li cas ntawm cov khoom yuav tsum tau sau ib cubic meter. Tab sis txawm tias tsis muaj cov ntaub ntawv tsim khoom, suav cov kev xav tau tsis yooj yim. Qhov nruab nrab, pob zeb muaj qhov ntom ntom ntawm 2.5 kilograms ib cubic decimeter. Rau ib lub cubic meter, yuav tsum muaj 2,500 kilograms ntawm pob zeb.
Rule of thumb:
Ib lub hnab nrog qhov hnyav ntawm 25 kilograms tsim ib ncig ntawm 10 litres ntawm cov khoom siv npaj ua tiav.
Nws siv 1,000 litres los sau ib lub qhov loj ntawm ib cubic meter. Qhov no ua rau muaj kev noj ntawm 100 lub hnab npaj sib xyaw, txhua tus tsim 10 litres ntawm cov khoom npaj txhij. Txij li thaum ntau yam khoom los ntawm txhua tus neeg tsim khoom sib txawv hauv lawv cov muaj pes tsawg leeg, qhov no tsuas yog ib qho piv txwv ntawm kev suav ntxhib xwb. Tus nqi npaum li cas ntawm cov khoom xav tau tsuas yog xam raws li cov khoom muaj tseeb ntawm cov khoom lag luam.
Price-determining factors
Cov khoom sib xyaw ua ke muaj nyob rau hauv ntau cov qauv los ntawm cov khw muag khoom kho vajtse thiab yog li npog ntau yam kev siv. Cov additives muaj yog pom nyob rau hauv tus nqi thiab ua rau txawv surcharges:
- Degree ofPumpability: + approx. 10€ / m³
- Surcharge rauFrost tiv thaiv: + approx. 5€ / m³
- Ntxiv ntawmFluent: + approx. 5€ / m³
- Ntxiv ntawmAir entraining agent: + approx. 5€ / m³
- Variety ofConsistency: + approx. 10€ / m³
- Compressive zog ntawm lub tsev khoom: saib saum toj
- SettingRetarder: + approx. 5€ / m³
- Accelerator rau khi: + approx. 30 € / m³
