Qhob zoo: specifications, GOST

Fine qhob yog ib lub tsev ntaub rau tshwj xeeb lub hom phiaj. Nws yog siv nyob rau hauv tus neeg mob qhov twg siv cov pa hnyav qhob yog tsis yooj yim sua. Qhov no yuav tsum muaj xws li caulking, sau gustoarmirovannyh kev tsim kho thiab kev kho ntawm lub waterproofing. Tab sis ua ntej koj npaj sib tov yuav tsum paub lawv tus kheej nrog nws cov specifications zoo li raws li nta.

kev yam ntxwv

Piav saum toj no yog ib tug qhob ntxwv cov ntaub ntawv uas, tsim raws li xis mas. Raws li yooj yim cov khoom xyaw ua raznofraktsionny xuab zeb thiab cov dej. Qhov no hom ntawm qhob tseem hu ua cov xuab zeb, thiab lub ntsiab sib txawv nta nyob rau hauv lub fact tias cov feem ntawm cov ntaub ntawv uas hais nyob rau hauv muaj pes tsawg leeg yuav tsum tsis txhob yuav ntau tshaj li 2.5 hli.

Cov kev ceev ntawm lub hnyav thiab ntxiv hnyav qhob tej zaum yuav yog los ntawm 2200 mus 2500 kg / m³. Lub curing kub tej zaum yuav sib npaug zos rau cov kev txwv ntawm +5 rau +30 ° C. Cov muaj peev xwm nyiaj mus dhau siab yog khaws cia nyob rau hauv 25 MPa. Compressive zog yog 18.5 MPa, kev xav txog cov xam ntawm kuj, nws yog sib npaug rau 14.5 MPa.

Frost kuj tej zaum yuav txawv nyob ntawm seb ntawm cov khoom xyaw siv, yog cov ntau yam ntawm 50 mus rau 1000 mus ntawm khov thiab yaj. Fine qhob muaj ib tug tej theem ntawm cov dej kuj. Qhov no parameter yog xaiv los ntawm tsab ntawv «W» thiab tej zaum yuav sib haum mus rau hauv lub chav los ntawm 2 mus rau 20.

ntxiv nta

Heavy thiab zoo-grained qhob muaj lub peev xwm los tuav ib tug predetermined zoo thaum lub sij hawm ib tug tej lub sij hawm, nws yog cuam tshuam los ntawm tus piv ntawm MAAs thiab xuab zeb raws li cov dej. Yog hais tias nws yog ib tug fatty mixtures, lawv yuav tsum tau formulated nyob rau hauv ib tug ratio ntawm 1 mus rau 1 los yog 1 mus rau 1.5. Nyob rau hauv xws dlaws, cov nplej cov txheej txheem ntawm nyob rau hauv ib co deb ntawm txhua lwm yam.

Yog hais tias tus nqi ntawm cov phau ntawv txo, nws yuav ua rau ib tug txo vodopotreblyaemosti thiab muaj. Fine qhob constructive lub hom phiaj yuav npaj nyob rau hauv lub nram qab no respects: 1: 3.5 thiab 1: 4. Lub pob zeb ua yuav khov dua, Yog hais tias cov xuab zeb cov ntsiab lus yuav tau nce. Plasticity txhim kho nrog rau cov tas li ntawd ntawm dej thiab plasticizers. Yog hais tias koj txo tus nqi ntawm cov xis mas, nws yuav ua kev sib cais.

rau cov ntaub ntawv

Siv lub proportions ntawm qhob nws, koj yuav xyuas kom meej lub cev ceev ntawm ua hauj lwm muaj. Yog hais tias lub chaw ua hauj lwm tau raug nqa tawm kom raug, qhov zoo-grained qhob yuav muaj ib tug kuj kub ceev, zoo uniformity, ya raws kuj thiab durability ntawm lub axial dabtsi yog khoov. Lub te kuj ntawm cov khoom yog nce, thaum lub sij hawm txoj kev ib feem yog ib tug ib txwm mus ncig mus faib lub sib tov sai li sai tau. Ntawm cov zoo cov yam ntxwv ntawm cov khoom - ib tug uas tsis muaj nqi, uas yog cuam tshuam los ntawm qhov uas tsis muaj ntxhib sau ua ib pawg. Qhov no ua rau nws yooj yim mus thauj. Ntawm lwm yam, qhob muaj versatility.

Scope ntawm kev siv

Qhob hnyav zoo thiab yuav siv tau nyob rau hauv tej qhov chaw uas ib co kua nplaum ntawm ntxhib sau ua ib pawg nyiaj tsawg. Thaum nws yog siv lub zog volume ntawm MAAs, uas tej zaum yuav tau nrog kev nyuaj siab nyob rau hauv cov kev xaiv ntawm tus piv ntawm cov khoom xyaw. Tab sis cov disadvantages yog compensated los ntawm cov nyiaj khaws tseg nyob rau hauv lub tsheb thauj mus los ntawm crushed pob zeb thiab gravel.

Tus yam ntxwv ntawm lub monolith yuav kho los ntawm kev siv ib tug plasticizer los txo qhov kawg nqi. Lub polymer muab tub lim ua ib tug tiv thaiv cov ntaub ntawv uas rau ib tug txhoj puab heev puag ncig rau cov dej thiab te. Concretes hnyav thiab zoo, kev cov lus uas tau hais saum toj no yog siv rau hauv lub tsev tam thiab complex designs, piv txwv li:

• nyias-walled partitions;
• vaults thiab ncaws;
• nyob rau hauv qhov siv thiab ua cov chaw ua si sculptures;
• lub tsim ntawm raws, tso tsheb hlau luam thiab cov kav dej;
• thaum ua paving pob zeb ,
• paving slabs thiab curbs;
• nyob rau hauv qhov siv thiab ua txuas ntawm siding facades thiab lub hau;
• nyob rau hauv kev tsim kho ntawm hydraulic lug;
• thaum txoj kev arched ceilings.

Nyob rau hauv kev tsim kho ntawm xws li ib tug muaj pes tsawg leeg tej zaum yuav kawm tuab si lug chaw. Yog hais tias koj siv qhob qib B25, ces nws yuav ua tau hlau-pob zeb ua hauv pem teb, yuav muab cov pob qij txha thiab tej kab nrib pleb nyob rau hauv lub phab ntsa.

Lub ntsiab zoo thiab qhov tsis zoo

Fine-grained ua vaj tse, uas nws muaj pes tsawg leeg yog hais nyob rau hauv tsab xov xwm, muaj ntau yam zoo, nws yog tsim nyog los paub qhov txawv ntawm lawv:

• High zog piv;
• tseem yuav tsim ntaub ntawv nrog tshwj xeeb;
• siab kuj mus ntseeg loads;
• niaj hnub zoo li cov qauv;
• tau transforming lub sib tov.

Txawm li cas los, cov ntaub ntawv uas nws muaj nws tsis zoo, lawv muaj xws li nyob rau hauv kom MAAs noj, ib tug siab hardness thiab shrinkage nyob rau hauv casting khoom. Thaum nws los txog rau hardness, nws yuav complicate kev kho mob.

Muaj pes tsawg leeg thiab lub xeev tus qauv

Nyob rau hauv zus tau tej cov piav cov ntaub ntawv uas siv GOST, concretes hnyav thiab zoo, specifications uas yog hais nyob rau hauv ib tsab xov xwm manufactured siv qhov yooj yim Cheebtsam ntawm MAAs thiab dej. Tab sis lub ntsaws yuav ua tau ib tug dej xuab zeb thiab gravel. Nyob rau hauv thawj cov ntaub ntawv, feem yuav tsum tsis txhob ntau tshaj qhov theem ntawm 2.5 hli. Crushed yuav muab ntxiv yog tias nws particle loj tsis pub tshaj 10 hli. Tsis tas li ntawd, nyob rau hauv Ntxiv rau cov uas, muaj qauv kuj yuav qhia qhov yuav tsum tau rau plasticizers. Qhov no ua rau nws tau mus cuag ib tug homogeneous qauv.

Ntxiv MAAs nyob rau hauv ib tug loj npaum li cas tshaj yuav tsum tau, koj raug tau ib tug tshuaj uas yuav tsum tau seeb nyob rau hauv lub masonry. Yog hais tias qhov no muaj ntxiv nyob rau hauv tsis txaus npaum li cas, ces tom qab tua cov khoom yuav muaj ib tug tsawg zog. Qhob nyuaj thiab zoo-grained (GOST 7473-2010) yuav tau ua los ntawm tsawg tom tsim. Qhov no technology koom txoj kev ciam teb, arches, raws li zoo raws li paving slabs. Nyob rau hauv cov ntaub ntawv ntawm nyias-walled lug siv ib tug tuab reinforcing cov txheej txheem. Qhov no cov ntaub ntawv uas feem ntau ntaub ntawv lub hauv paus ntawm txoj kev chaw, raws li muaj high dej kuj thiab txias kuj.

Nta ib tug tub lim

Fine qhob Cheebtsam yuav tsum tau xaiv kev noj mus rau hauv tus account lub qauv. Cov tshuaj yuav tsum muaj yam uas muaj ntau tus yam ntxwv. Cai kav kev siv ntawm cov xuab zeb, nyob rau qhov luaj li cas ntawm lub cais. Ua ntej, xuab zeb yog sifted los ntawm qhov kev tshuaj ntsuam, uas sab yog 2.5 hli. Qhov no pub rau ib tug thawj feem. Ces tus daim phiaj siv nrog ib tug Mesh loj ntawm 1.2 hli.

Tom qab lub cell yog txo, lawv yuav tsum yoog mus rau qhov luaj li cas ntawm 0,135 hli. Txhua yam uas yuav kis tau los ntawm lub net lub sij hawm tas los, yuav tsum tau siv raws li ib tug tub lim. Fine-grained qhob yuav tsum tau npaj siv ib tug thawj pab pawg neeg ntawm cov xuab zeb nyob rau hauv ib tug ntim ntawm 20 mus rau 50% ntawm tag nrho cov ceeb thawj. Lub residual volume yuav tau me me feem ntawm ib tug thib ob.