Cov Yas Rau Paving Slabs: Ntau Npaum Li Cas Ntxiv Rau Cov Tshuaj Khib Nyiab Thiab Yuav Hloov Dab Tsi Hauv Tsev? Nws Yog Dab Tsi? C-3 Thiab Lwm Yam Yas Yas

2024 Tus sau: Beatrice Philips | [email protected]. Kawg hloov kho: 2024-01-18 12:13

Raws li ib feem ntawm paving slabs, cov yas ua kom yooj yim tso cov khoom siv, ua rau nws tiv taus lwm yam kev cuam tshuam. Nws lub xub ntiag ua kom muaj zog thiab ua kom ntev ntawm cov phaj thaum ua haujlwm. Cia peb kawm paub ntau ntxiv txog cov khoom muaj txiaj ntsig uas koj tuaj yeem ua rau koj tus kheej.

Nws yog dab tsi thiab vim li cas thiaj xav tau?

Cov muaj pes tsawg leeg ntawm cov vuas sab nraum zoov, paub txog lawv tiv taus cov dej noo, tsis kub thiab ua haujlwm nyuaj, suav nrog ntau yam khoom siv - pob zeb tawg, pob zeb, xuab zeb thiab xis mas. Tab sis tib lub sijhawm, nws ib txwm suav nrog cov yas yas rau paving slabs, uas ua rau kom muaj txiaj ntsig zoo dua, kev ua haujlwm thiab cov yam ntxwv ua haujlwm ntawm cov khoom.

• Cov tshuaj ntxiv yog tsim nyog los ua kom cov nplais tawv - vim nws muaj, lub zog nce ntxiv 25%. Ib qho ntxiv, nws txo qhov porosity ntawm cov qauv, uas tsis yog tsuas yog qhov tsis xws luag, tab sis kuj ua rau cov txheej txheem hauv pem teb tsis txhim khu kev qha.
• Siv cov yas yas, nws muaj peev xwm txo qis kev siv dej los ntawm 35% thiab ntawm cov cement sib xyaw los yuav luag 15% ., thiab kev ua kom tawv ntawm cov pob zeb tau nrawm dua.
• Kev sib xyaw ua ke ntawm cov tshuaj ntxiv rau kev tsim cov pob zeb sab nraum zoov ua rau lawv tiv taus te , nyob rau tib lub sijhawm, cov dej ua kua amorphous, cov cement mortar ntawm sub-zero kub txhim kho, nws teeb tsa thiab ua kom nrawm dua. Qhov no tso cai teeb tsa thaum huab cua txias.
• Cov yas yas pab ua kom cov dej ntws tau yooj yim dua … Qhov no yog qhov ntsuas tseem ceeb ntawm cov khoom siv pobzeb, vim nws ua rau kev teeb tsa yooj yim dua, thiab kev tsim cov txheej txheej monolithic yog qhov zoo dua. Cov khoom siv muaj txiaj ntsig no rau kev tsim cov khoom siv paving tso cai rau teeb tsa ntawm kab rov tav thiab ntsug ntsug, tshem tawm cov txheej txheem ntawm kev co tso.

Lub hauv paus tseem ceeb ntawm kev sib xyaw ntawm cov yas yog polymeric thiab cov tshuaj ntxhia, nrog rau surfactants . Thaum siv cov khoom ntim no, cov nplais ntawm cov nplais yog du, tsis muaj qhov tsis xws luag, kev tsim cov khoom tsis xws luag thiab cov chips tsis suav nrog, tsis muaj cov dej ntws tawm los ntawm cov khoom lag luam, cov xim npaj ntawm paving slabs tau khaws cia.

Kev ua haujlwm nyob rau lub caij ntuj no tsis cuam tshuam rau cov qauv ntawm cov khoom siv hauv txhua txoj kev, nws yuav tsis tawg, thiab nws lub neej txee yuav nce ntxiv.

Lawv yog dab tsi?

Nyob ntawm qhov muaj pes tsawg leeg, cov yas yas tau muab faib ua ntau pawg, vim li no, cov khoom ntawm txhua yam khoom yuav txawv dua. Cov khoom lag luam zoo li no tau tsim hauv cov tsev tsim khoom hauv ntau hom ntawv thiab tau tsim los siv cov thev naus laus zis tshwj xeeb.

Muaj ntau yam khoom siv yas rau ua vaj tsev, muaj pes tsawg leeg suav nrog cov khoom tsim nyog txhawm rau txhim kho yuav luag txhua tus yam ntxwv ntawm cov pobzeb. Tab sis kuj tseem muaj qhov tshwj xeeb tshwj xeeb ntxiv uas ua rau qee yam tseem ceeb ntawm cov khoom siv hauv tsev.

Cov neeg siv khoom txhawm rau ua kom txias txias ntawm cov nplais.

Cov neeg ua haujlwm , pab txhawb rau txheej txheej nrawm ntawm kev sib xyaw ua vaj tse. Lawv nce qib kev tiv thaiv ntawm cov phaj mus rau sab nraud cov tshuab sib zog, txo lub sijhawm lawv nthuav tawm, thiab ua kom cov txheej txheem tsim khoom ntawm cov qib tshwj xeeb. Nyob rau tib lub sijhawm, kev tsim lub zog ntawm cov pob zeb hauv kev sib xyaw ntawm cov paving slab nce, nws qhov tsis tuaj yeem tiv thaiv cov dej thiab te.

Hloov kho - cov khoom siv uas ntxiv dag zog rau cov khoom lag luam, ib txhij pab tswj kev txav mus los ntawm cov kua tov, uas yog qhov tseem ceeb rau kev faib khoom zoo tshaj plaws.

Cov tshuaj ntxiv uas txhim kho cov qauv ntawm cov tshuaj khib thiab nws cov ntsuas, uas muaj qhov txiaj ntsig zoo ntawm txhua tus yam ntxwv ntawm cov khoom siv ntsej muag.

Nws tsim nyog nco txog nyias muab tub lim C-3 , tsim los rau tus kheej-compacting mortar thaum tsim cov nplais tsev cov ntaub ntawv. Nws daim ntawv thov pab ua yam tsis muaj vibrocompression.

Muaj ob hom yas yas los ntawm hom. Ua kua tuaj yeem siv rau kev tsim cov phaj, kev teeb tsa uas tshwm sim nyob rau lub caij txias thiab sov. Qhuav hom muab tub lim feem ntau yog npaj rau kev siv ntawm qhov kub ntawm –2 degrees thiab qis dua.

Yog li, cov yas yas zoo tshaj plaws yog cov muaj pes tsawg leeg uas raug xaiv raug coj los rau hauv tus account qhov ntim ntawm kev ua haujlwm thiab kev ua haujlwm, thiab ib lossis lwm hom yas yas yog qhov yuav tsum tau ntxiv rau phaj vibropressed rau siv sab nraum zoov.

Cov lus qhia rau kev siv

Cov tshuaj tshwj xeeb ntxiv rau hauv cov hmoov lossis kua yuav tsum tau ntxiv rau cov cement slurry raws li qhov kev txiav txim tau teev tseg hauv khw muag khoom cov lus qhia. Rau txoj kev paving pob zeb, muaj qee qhov nyiaj thiab feem ntawm txhua yam khoom siv tau muab. Yog tias cov yas tau tsim ua cov hmoov, tom qab ntawd nws yuav tsum xub muab diluted nrog dej, tab sis cov tshuaj ntxiv tuaj yeem nkag tau rau hauv cov khoom sib xyaw ua ke thaum lwm cov khoom xyaw sib xyaw nrog dej.

Cia peb txiav txim siab hauv daim ntawv qhia rau siv cov hloov pauv qhuav

• Nws yog qhov tsim nyog los dilute cov tshuaj ntxiv hauv dej … Yog tias nws yog C-3, tom qab ntawd nws cov concentration yuav tsum tsis pub ntau tshaj 38%. Hauv qhov no, kev tsim vaj tsev sib piv ntawm cov dej thiab hmoov yog 2: 1.
• Ces kev noj cov tshuaj kom tuab cov qhob tau txiav txim siab .
• Dissolved yas yas yog nchuav rau hauv dej thiab cov cement ntxiv rau nws .
• Cheebtsam raug xa mus rau lub tov khoom . Nws tseem yuav tau tos kom sib xyaw kom zoo kom txog thaum ua tiav homogeneity.

Cov kua ntxiv yog sib xyaw hauv lub thawv tsim nyog, thiab tom qab ntawd ntxiv rau cov dej hauv qhov tsim nyog thiab sib xyaw kom huv. Kev daws yog nchuav rau hauv lub nruas ntawm cov khoom sib xyaw ua ke, tom qab uas cov cement thiab cov muab tub lim tau muab tso rau ntawd. Txawm li cas los xij, nws tsim nyog paub tias ntau npaum li cas ntawm cov yas uas tau qhia rau hauv cov tshuaj muaj peev xwm tuaj yeem ua rau lub sijhawm tawv ntawm cov qhob sib xyaw.

Yuav hloov dab tsi hauv tsev?

Txog kev tsim cov vuas luaj sab nraum zoov, tsis txhob siv cov yas yas, koj tuaj yeem siv cov cuab yeej tsim kho uas tuaj yeem pom hauv txhua lub tsev.

Haum raws li ib qho ntxiv:

• zoo tib yam slaked txiv qaub;
• pobzeb nplaum;
• polyvinyl acetate kua nplaum (PVA);
• cov xab npum sib txawv - xab npum ntxhua khaub ncaws, ntxhua khaub ncaws, kua xab npum lossis tsuaj zawv plaub hau;
• ib qho ua npuas dej ruaj khov.

Feem ntau, cov xab npum tau siv rau lub hom phiaj no - lawv yog qhov hloov pauv tau zoo rau cov tshuaj tshwj xeeb, tab sis nws yog ib qho tseem ceeb uas yuav tsum xam lawv cov nyiaj kom raug. Hmoov lossis xab npum yog qhov zoo tshaj plaws thaum siv cov cement thiab nthuav av nplaum, tab sis koj yuav tsum ntxiv lawv mus rau qhov sib xyaw ua haujlwm tam sim ua ntej nchuav rau hauv cov pwm. Ib qho chaw du kuj tuaj yeem ua tiav los ntawm kev tso cov kua qaub rau hauv cov pob zeb.