Tej teeb meem thiab kev daws teeb meem rau xim Pervious pob zeb

1. Lub zog tsis txaus ntawm Xim pervious pob zeb

Lub zog ntawm cov pob zeb pervious cuam tshuam los ntawm ntau yam, feem ntau suav nrog: tsis txaus cov cement ntxiv, tsis muaj lub zog pob zeb, kev npaj siv tshuab, tsis txaus tus neeg saib xyuas SiO2 cov ntsiab lus, thiab kev saib xyuas tsis tu ncua. Yog li ntawd, nws yuav tsum pib los ntawm optimizing raw cov ntaub ntawv, ntxiv ntxhia nplua additives thiab organic reinforcement Peb yam los txhim kho lub zog ntawm pervious pob zeb.

2. Xim pervious pob zeb tawg

Vim qhov kev hloov pauv ntawm qhov kub thiab txias, qhov brittleness thiab tsis sib xws ntawm cov pob zeb, thiab cov qauv tsis tsim nyog, cov kab nrib pleb feem ntau tshwm hauv cov pob zeb pervious tom qab siv rau lub sijhawm, ua rau mob taub hau rau ntau tus neeg ua haujlwm tsim kho. Yog li ntawd, thaum tsim kev sib xyaw ua ke, kev saib xyuas yuav tsum tau them rau txo qis kev siv dej thaum ua kom ntseeg tau tias cov pob zeb pervious ua haujlwm zoo. Teem cov khoom siv zais zais ntawm cov npoo uas yooj yim tawg kom nce qhov sib npaug thiab qhov kawg tensile lub zog ntawm cov pob zeb. Hauv kev tsim qauv, cov yam ntxwv ntawm kev nyab xeeb thaum lub sij hawm tsim kho yuav tsum tau txiav txim siab tag nrho thiab cov pob qij txha tom qab yuav tsum tau teeb tsa kom tsim nyog. nruj me ntsis tswj cov txheej txheem zoo thiab cov txheej txheem ntawm cov khoom siv raw, siv cov hydration cua sov cement, thiab txo cov av nkos ntawm ntxhib thiab nplua aggregates kom ntau li ntau tau (hauv qab 1 mus rau 1.5%).

3. Pinholes lossis npuas tshwm rau ntawm Xim pervious pob zeb

Lub hauv paus yog vim li cas rau tsim ntau pinholes nyob rau hauv cov xim pervious pob zeb yog hais tias cov kuab tshuaj nyob rau hauv lub permeable pem teb xim yog activated tom qab pleev xim, tawm hauv cov xim ua kua lig dhau lawm, uas ua rau lub voj voog me me, qhov los yog pinholes. Permeable pob zeb nrog cov kua roj vanish qis thiab cov ntsiab lus pigment nyob rau hauv txheej txheej yog ntau dua rau cov mob no.

4. Ib nrab pob zeb ntog tawm ntawm cov xim pervious pob zeb

Lub ntsiab yog vim li cas rau lub zos tev tawm ntawm pervious qhob yog raws li nram no: tsis txaus feem ntawm permeable qhob enhancer (Cementing khoom) thiab cov cement los yog tsis sib xws; dej ntau dhau ntawm qhov chaw, poob ntawm slurry ntawm lub pob zeb; tsis muaj zog pob zeb; thiab thaum ntxuav tej thaj chaw ib puag ncig. Lub slurry yog ploj vim dej yaig; cov yeeb yaj kiab kho tsis tau. Yog li ntawd, nws yog ib qho tsim nyog yuav tsum siv cov khoom tsim nyog permeable qhob reinforcing tus neeg sawv cev; tus neeg sawv cev txhawb nqa thiab cov cement yuav tsum muab tso rau hauv cov nyiaj txaus thiab sib xyaw kom zoo raws li qhov xav tau. Thaum txau dej rau kev saib xyuas, lub siab yuav tsum tsis txhob siab dhau, thiab kev txau ncaj qha nrog cov kav dej yog txwv nruj heev. Thaum ntxuav thaj tsam ib puag ncig, npog qhov permeable pob zeb. Ua tiav kev tsim kho batching raws li qhov tsim ua vaj tse lub zog piv. Qhov sib tshooj ntawm cov yeeb yaj kiab kho yuav tsum tau muab kaw kom nruj, thiab cov yeeb yaj kiab yuav tsum tau npog thiab kho rau 7 hnub.