Table of Contents
Bitumen sib koom sealant
Cov kuab tshuaj tsis muaj kuab kub melts rau siv los ua bitumen sib koom ua ke sealant, nplaum, caulking tebchaw los yog cov zoo li yog tsim los ntawm intimately blending elastomeric polymers nrog tackifying resins thiab plasticizers kom tau cov khoom uas muaj ib tug hardness ntawm chav tsev kub ntawm tsawg kawg yog li 5 ntawm lub ntug dej hiav txwv A Durometer scale thaum ua tau yooj yim soft50 ° F los yog hais txog ib qho yooj yim softXNUMX ° F. siv.
Adhesion promoters, lubricants, fillers thiab lwm yam zoo dua ntxiv rau cov muaj pes tsawg leeg los txhim kho cov khoom ntawm nws. Cov khoom yog cov yam ntxwv ntawm lawv cov kev ruaj ntseg ntawm ntau qhov kub thiab txias, lawv tsis kam mus rau oxidation thiab huab cua, thiab lawv cov khoom tsis muaj ya raws vapor kis tau tus mob.Hot melt bitumen daim ntawv thov yog:
Asphalt sealant
Kev tsim kho asphalt sib koom ua ke sealant thiab cov khoom sib txuas rau kev sib txuas ntawm ob thiab rau rau tus tswv cuab orthogonal yog dav paub thiab siv hauv daim duab ua ntej. Cov khoom sib txuas ua ntej thiab kev sib koom ua ke feem ntau suav nrog cov khoom sib txuas tshwj xeeb uas nyob hauv qhov chaw thauj khoom loj, thiab kev ua haujlwm nyuaj hauv kev sib sau cov pob qij txha lossis hloov kho cov tswv cuab hauv thaj chaw ua ntej tsim cov pob qij txha. Cov haujlwm no tuaj yeem siv sijhawm ntev thiab yuav tsum muaj kev txawj ntse thiab kev ua haujlwm ntawm qhov chaw tsim kho
Expansion bitumen pob qij txha
Ib qho kev nthuav dav bitumen sib txuas sealant tau nthuav tawm rau lub tshuab hluav taws xob cable rau cov neeg txav mus los. Ib qho kev sib koom ua ke yog ntxig los yog muab tso rau ntawm ib khub ntawm feem ntau cov kab hluav taws xob kab hluav taws xob uas muaj thawj thiab thib ob xaus. Cov tais kab hluav taws xob txuas nrog qhov kawg-rau-kawg. Lub expansion sib koom ua ke muaj thawj thiab thib ob xaus thiab yog positioned ntawm ob khub ntawm cable tais thiaj li hais tias tus thawj kawg ntawm nws yog txuas mus rau lub thib ob kawg ntawm lub cable tais uas nyob ib sab thiab yog li ntawd lub thib ob kawg ntawm nws txuas nrog rau thawj kawg ntawm lub cable tais uas nyob ib sab. Lub expansion sib koom ua ke muaj xws li lub cev feem uas yog zawv zawg txav tau ntawm ib leeg los yog zawv zawg txav tau deb ntawm ib leeg los them rau kev nthuav dav thiab kev cog lus ntawm cov khoom siv cable tais.
Contraction bitumen pob qij txha
Ib qho kev cog lus asphalt sib koom ua ke rau kev siv los ua ib txheej ntawm cov pob zeb tau nthuav tawm uas suav nrog lub hauv paus, qhov nruab nrab qhov projection nthuav tawm los ntawm lub hauv paus uas muaj cov seem apex ntawm cov tuab tuab thiab sab hauv daim duab peb sab uas muaj qhov txiav tawm los pab rau hauv lub hauv paus. contraction thiab expansion ntawm kev sib koom ua ke, ib tug plurality ntawm dej nres txuas mus rau lub hauv paus, tsawg kawg yog ib qho ntawm txhua sab ntawm lub hauv paus projection, thiab ib tug ntau ntawm elongated tav nyob nruab nrab ntawm cov dej nres thiab lub hauv paus projection. Qhov sib koom ua ke yog tsim los muab tso rau hauv qhov chaw kom lub taub hau ntawm qhov nruab nrab qhov projection pov tseg ntawm lossis me ntsis saum toj no ntawm cov txheej txheem ntawm cov pob zeb ua ke saum toj no. Kev siv cov kev sib koom ua ke tiv thaiv kev sib koom ua ke los ntawm kev tsim hauv ob qhov sib txuas ua vaj huam sib luag kom tsis txhob cuam tshuam ntawm lub vaj huam sib luag interface yog txo, kev ntxhov siab hauv cov pob zeb yog relieved, thiab buckling tiv thaiv. Qhov sib koom ua ke yog ua los ntawm cov khoom siv tau yooj yim, ruaj khov, thiab tshwj xeeb tshaj yog siv rau hauv kev npaj cov pob zeb-lined cov qauv rau cov dej xa dej xws li cov kwj dej lossis cov pas dej.
Isolation Joints
Daim ntawv rov siv tau los ua cov pob zeb diamond cais cov pob zeb siv hauv kev tsim kho vaj tse tau nthuav tawm. Daim ntawv no yog tsim los ntawm ntoo, yas cardboard, yas ntawv, wax coated cardboard los yog lwm yam khoom uas yuav yooj yim muab cais los ntawm cov pob zeb. Daim ntawv yog muab tso rau hauv ib tug footing rau ib kem los yog thaiv tawm thiab hauv pem teb yog poured ib ncig ntawm daim ntawv. Tom qab hauv pem teb tau kho, daim ntawv no tau tawg rau hauv nws tus kheej los tsim qhov tsis muaj pob zeb diamond cais tawm sib txuas sealant. Daim ntawv tuaj yeem rov siv dua hauv lwm qhov kev sib cais sib txuas sealant nyob rau hauv tib lub tsev los yog nyob rau yav tom ntej kev tsim kho tej yaam num. Daim ntawv tuaj yeem tsim rau ntawm qhov chaw hauv ntau qhov siab thiab qhov ntev. Daim ntawv yog folded los yog sib tsoo kom yooj yim rau kev thauj thiab khaws cia.
