Dub crushed pob zeb: tsim tshuab

2024 Tus sau: Aaron Duncan | [email protected]. Kawg hloov kho: 2023-12-16 03:45

Dub crushed pob zeb tsis yog ib txwm yog cov khoom siv raw uas tau muab rho tawm los ntawm cov pob zeb ntawm cov xim sib xws los ntawm kev sib tsoo thiab kev ua haujlwm tom ntej. Qee lub sij hawm nws yog cov khoom siv ntau uas yog coated nrog tshwj xeeb bituminous lossis tar muaj pes tsawg leeg. Xws li kev ua haujlwm yog tsim nyog kom tau txais cov khoom lag luam nrog kev hnav siab dua thiab adhesion (adhesion zoo nrog lwm cov khoom siv hauv tsev).

Hom thiab daim ntawv thov

Raws li GOST, cov pob zeb dub crushed yog cais los ntawm feem me me:

1. Ntawm 5 mus rau 20 mm - gravel screening (crumb), uas yog cov feem ntau zoo-grained muaj pes tsawg leeg.
2. Ntawm 20 mus rau 40 mm - nruab nrab-grained crushed pob zeb. Feem ntau siv hauv kev tsim kho.
3. Los ntawm 40 mus rau 70 hli - cov khoom siv coarse-grained, thaum nteg uas feem ntau nqa tawm gusseting (rov faib pob zeb kom tshem tawm cov voids).

Lub ntiajteb txawj nqus ntawm cov pob zeb dub yog 2.9 t / m 3, yog li nws tsuas yog thauj los ntawm tsheb hnyav xwb.

Feem ntau cov khoom siv no yog siv thaum tso kev taug kev, lub nroog alleys thiab chaw ua si. Nws kuj yog siv los ua txoj kev asph alt pavements. Thaum tsim tsev nrog hauv qab daus los yoghauv qab daus, cov ntaub ntawv raw yog siv los ua dej tsis zoo.

Qee zaum cov khoom siv txawv txawv no yog siv rau kev kho kom zoo nkauj ntawm thaj chaw suburban.

Qhov ntau ntom ntawm cov pob zeb dub yog 2900 kg.

Qhov zoo thiab qhov tsis zoo

Ntawm qhov zoo ntawm cov khoom no nws tsim nyog qhia:

1. Txo kev tawg. Tias yog vim li cas tus qauv asph alt pob zeb tau nce ntxiv nrog cov pob zeb dub.
2. Txhim kho shear tsis kam ntawm cov coatings ua los ntawm cov khoom siv no.
3. Zoo plam tiv taus.
4. ntev lub neej ntev.
5. Easy sealing.
6. Coj stackable.

Los ntawm qhov tsis txaus ntawm cov pob zeb dub, lawv feem ntau paub qhov txawv:

1. siab dej permeability ntawm raw khoom.
2. Nyob ntev rau kev tsim cov pav (mus txog 1 hli). Yog tias cov khoom tau muab tso rau hauv lub caij nplooj zeeg lig ntawm qhov kub tsis zoo, ces lub hauv paus yuav tau txais lub zog yuav tsum tau tsuas yog tom qab ib xyoos xwb.

Kuj, thaum tso pav tshiab, yuav tsis muaj zog 5 hnub.

Qhov ntawm cov khoom siv hauv tsev no feem ntau nyob ntawm txoj kev ntawm nws cov khoom siv.

Cold production technology

Cov pob zeb dub no tsuas yog siv rau kev kho qhov chaw ntawm txoj kev. Kev siv tshuab ntawm kev tsim khoom los ntawm txoj kev txias yog nqa tawm hauv ob txoj hauv kev: ncaj qha ntawm qhov chaw lossis hauv qhov tshwj xeebkev teeb tsa nrog kev thauj mus los tom ntej mus rau qhov chaw ua haujlwm.

Npaj cov khoom siv raw siv tar, bitumen thiab lawv cov emulsions ntawm qhov kub ntawm +100⁰С txog +200⁰С. Lub resulting khoom yog pw txias. Hauv qhov no, qhov tsim nyog yuav tsum yog qhov kub thiab txias, uas yuav tsum tsis txhob qis dua +5^0С..

Cov pob zeb txias muaj viscosity tsawg, yog li nws tuaj yeem khaws cia hauv chav txias kom ntev.

Sov tshuab tsim khoom

Nyob rau hauv cov ntaub ntawv no, cov khoom yuav raug kho cua sov los ntawm +80⁰С rau +120⁰С. Cov pob zeb sov sov yog siv los tso cov chaw tshiab ntawm txoj kev nrog txo cov neeg kho tshuab kev ntxhov siab. Nws yog ib qho tsim nyog yuav tsum siv cov khoom ntawm qhov kub ntawm +60 ⁰С txog +100^0С.

Hot production technology

kub dub crushed pob zeb yog tsim los ntawm kub ntawm 120 ⁰ С txog 180 ⁰ С. Tar thiab bitumen kuj tseem siv los ua cov khoom siv. Nws tsuas yog siv tau thaum nws qhov kub thiab txias tsis pub dhau +100-120^0C.

Tso cov pob zeb sov thiab kub kub yog qhov tsim nyog tam sim tom qab nws tsim khoom. Yog li ntawd, thaum txhim kho txoj kev, cov cuab yeej tshwj xeeb asph alt paving yog ib txwm siv.

Nyob rau hauv kev tsim khoom, cov cuab yeej kim yog siv los tsim cov pob zeb dub.

Nws tseem tsim nyog xav txog tias cov khoom siv raw,tsim nyob rau hauv tus ntawm cov kub kub, muaj ib tug heev tsis kam mus rau tsim ntawm fungus thiab pwm. Txhawm rau tshem tawm qhov teeb meem no, boric acid, diethanolamine thiab ncua kev tshem tawm cov roj ntsha yog ntxiv rau cov pob zeb crushed.

Yuav ua li cas koj tus kheej tes?

Yuav ua kom pob zeb dub koj tus kheej, koj yuav tsum sib tov cov khoom xyaw hauv qab no:

1. Pob zeb crushed (limestone zoo tshaj plaws) qib tsis qis dua M600. Nws yog qhov zoo dua los siv cov khoom ntawm qhov nruab nrab feem (20-40 mm), vim nws muaj cov khoom nqus tau zoo.
2. Astringent tivthaiv. Raws li nws pom zoo kom siv BND 200/300 bitumen. Qhov ntim ntawm cov ntaub ntawv yuav tsum yog li 4-5% ntawm tag nrho cov pob zeb.
3. Aqueous tov ntawm NaOH (cov tshuaj no yuav siv los ua ib tug bituminous emulsion).
4. Synthetic fatty acid nyob rau hauv tus nqi ntawm 3% ntawm tag nrho cov loj ntawm bitumen.
5. Electric pear-puab qhob tov khoom.
6. Cov khoom siv kub kub.

Lub tov khoom yuav tsum tau nruab nrog lub tshuab cua sov, uas yuav tso cai rau koj kom tau txais qhov kub thiab txias tsim nyog rau kev ua cov pob zeb crushed.

Lub sijhawm sib xyaw ntawm txhua yam khoom hauv lub pob zeb sib tov ncaj qha nyob ntawm qhov ntim ntawm cov khoom siv raw thiab qhov loj ntawm lub tov khoom.

Nrog kev pab los ntawm cov pob zeb dub, koj tuaj yeem ua rau txhua txoj hauv kev hauv cheeb tsam suburban, ua rau sab saum toj txheej ntawm qhov muag tsis pom nyob ib puag ncig lub tsev lossis teeb tsa qhov chaw nres tsheb ruaj khov thiab ruaj khov rau koj lub tsheb. Txawm li cas los xij, nws yuav tsum nco ntsoov tias lwm cov ntaub ntawv tuaj yeem siv rau hauv kev tsim kho ntiag tug,uas yooj yim dua thiab pheej yig dua los ua nrog koj tus kheej txhais tes yam tsis tas siv cov khoom cua sov. Tsis tas li ntawd, kev tso pob zeb dub yog ib qho nyuaj ua ib leeg xwb.