Qhob chav kawm ntawv - lub zog thiab sib txawv

Lub hauv paus - lub hauv paus ntawm tej lub tsev raug tsa. Li ntawd, cov zoo nws yog xam tawm thiab tua, ces nws yog ntau ruaj khov thiab check ntau. Cov ntaub ntawv uas lub hauv paus yog poured, ib tug tseem ceeb nyhuv on nws zoo. Yog li ntawd, muaj ib tug xav los tham txog vaj tse, txiav txim seb lub pob zeb hauv chav kawm ntawv thiab nws cov hom.

Lub hauv paus ntawm lub hauv paus yog qhob. Nws yog ib qho ancient neeg sawv cev ntawm qhov kev siv cov ntaub ntawv. Qhob - ib hom ntawm ib tug sib tov ntawm cov hauv qab no Cheebtsam: phau ntawv - MAAs (Portland MAAs thiab slag MAAs), dej, zoo (xuab zeb) thiab ntxhib sau ua ib pawg (crushed pob zeb thiab gravel).

Lub ntsiab thiab lub ntsiab zoo pokazatelemi xav txog qhob chav thiab qib kev ua vaj tse. Hom characterizes tus nqi ntawm cov xis mas uas yog muaj nyob rau hauv lub pob zeb mix.

Qhob chav kawm ntawv hom xws li: B10, B15, B20, B25, B30, B40, B80, V12,5, B7.5, V22,5, B35 .... Ntawm qhov chaw nram qab no hom B7.5 - B40.

Muaj classifier nyob rau compressive zog, uas yog nyob rau hauv lub ceev ntawm lub pob zeb ua :

• M400 - M1000 - hnyav heev;
• M100 - M600 - hnyav;
• M50 - M400 - ib txwm;
• M25 - M200 - yooj yim;
• M4 - M100 - ultra-lub teeb.

Cov hom heev feem ntau siv. Cov, uas yog nyob rau tom qab daim ntawv M, yog ib lub voos xwmfab compressive zog, uas nws nce mus txog tom qab 28 hnub ntawm ripening. Tseem muaj sib npaug ib qho tseem ceeb zoo ntawm lub pob zeb ua, xws li: te kuj, ua hauj txhoj puab heev tej yam kev mob.

Zoo thiab qib kev ua vaj tse rau lub hauv paus yog nyob nkaus ntawm lub hom phiaj, hom thiab ntxiv exploitation. Yam teeb meem loj nyob rau kev siv ntawm ntau hom ntawm mixtures muaj lub zos cov huab cua puag.

Saib xyuas yuav tsum tau muab nyob rau ntawm ntaus ntawv los luj rau ntawm cov hauv qab no tsis:

1. Transverse, longitudinal load thiab lub load los ntawm cov neeg tuag ceeb thawj.
2. Lees paub ib tug kev tshawb no ntawm av thiab av.
3. Layout ntawm lub thaj chaw, uas muaj nyob hauv qab no rau hauv pem teb theem ntawm cov thawj pem teb, hom foundation thiab hauv qab daus ntawm lub hom.

Tag nrho cov ntawm cov yam tseem ceeb ho muaj kev cuam tshuam lub pob zeb ua hauv chav kawm ntawv, raws li tau zoo raws li nws lub cev thiab txhua yam khoom. Thaum lub sij hawm tsim kho ntawm lub cia lub tsev, muaj los yog neeg pej xeem siv yog tsim nyog los ua tus muab xam los ntawm qhov tseem ceeb ntawm tag nrho cov loads.

Yuav kom lub hauv paus uas lub tsev yog ua, tseem muaj zog, koj yuav tsum rau txoj kev xaiv qib ntawm qhob rau lub hauv paus thiab muab tub lim. Mark nyob rau hauv lub tsev lub tsev, ntau dua tus nqi ntawm cov load, ntau dua qhov lub hom, peb lees txais.

Los ntawm cov foregoing, nws yog tseeb hais tias cov durability ntawm tej kev tsim kho nyob rau hauv lub mortgaged nyob rau hauv nws lub hauv paus, thiab nws zoo nyob rau hauv lub proportions ntawm lub pob zeb ua cov pej xeem.

Ua noj koj zoo ntawm qhob yog kim heev: Vim hais tias ntawm cov teeb meem nyob rau hauv muab tej yam zoo ntawm qhob thiab sau tagnrho nyob rau hauv lub formwork, yuav tsum tau tua nyob rau hauv ib hnub.

Uas tsis nyob rau hauv qhov kev npaj ntawm lub pob zeb ua sib tov haum rau lub hauv paus, yuav ho tsis tau lawv zoo, uas nyob rau hauv lub neej yav tom ntej yuav ua rau ib tug xov tooj ntawm cov nyom txheej xwm. Txawm ib tug private lub tsev tshiab ntawm lub hauv paus yuav tsum tau ceev faj ua raws li cov kev cai txais nyob rau hauv lub civil siv.

Nws yog ib qho tseem ceeb yuav tau nco ntsoov hais tias koj yuav tsum tau xaiv txoj cai hom kev ua vaj tse, ib txhia ntawm lawv yog cov tsim kev tsim kho ntawm loj vaj tse, thaum lwm tus neeg yuav tsum tau los mus tiv lub siab tsuas yog me me khoom.