Malo oyambira a asphalt amagawidwa kukhala olimba komanso olimba. Popeza chigawo chapansi ndi pamwamba ndi zipangizo zamitundu yosiyanasiyana, kugwirizana kwabwino ndi kupitiriza pakati pa ziwirizi ndizofunika kwambiri pamtundu woterewu. Kuonjezera apo, pamene phula la asphalt limatulutsa madzi, madzi ambiri amakhazikika pamtunda pakati pa pamwamba ndi pansi, zomwe zimapangitsa kuwonongeka kwa phula monga slurry, looseness, ndi potholes. Chifukwa chake, kuwonjezera chisindikizo chotsika pamwamba pa gawo lolimba kapena lokhazikika kumathandizira kwambiri kukulitsa mphamvu, kukhazikika komanso kuthekera koletsa madzi pamapangidwe anjirayo. Chomwe chimagwiritsidwa ntchito kwambiri ndikugwiritsa ntchito ukadaulo wosindikizira wa miyala ya asphalt synchronous.

M'munsi kusindikiza wosanjikiza
Kulumikizana kwapakati
Pali kusiyana koonekeratu pakati pa asphalt pamwamba wosanjikiza ndi theka-olimba kapena olimba m'munsi wosanjikiza malingana ndi kamangidwe, kapangidwe zipangizo, zomangamanga zomangamanga ndi nthawi. Malo otsetsereka amapangidwa mwachilungamo pakati pa pamwamba ndi pansi. Pambuyo powonjezera chisindikizo chapansi, pamwamba ndi pansi pamunsi zingathe kulumikizidwa bwino kukhala chimodzi.

Kusamutsa katundu
Asphalt pamwamba wosanjikiza ndi theka-olimba kapena olimba m'munsi wosanjikiza amakhala ndi maudindo osiyanasiyana pamapangidwe anjira. Malo otsetsereka a asphalt makamaka amatenga gawo la anti-skid, madzi, anti-phokoso, anti-shear slip ndi ming'alu, ndikusamutsa katundu kumalo oyambira. Kuti mukwaniritse cholinga chotumizira katundu, payenera kukhala kupitirizabe mwamphamvu pakati pa pamwamba ndi pansi. Kupitilira uku kungathe kupezedwa kudzera mu ntchito ya m'munsi kusindikiza wosanjikiza (zomatira wosanjikiza, permeable wosanjikiza).

Limbikitsani mphamvu zamsewu
The elastic modulus ya asphalt pamwamba wosanjikiza ndi theka-olimba kapena olimba maziko wosanjikiza ndi osiyana. Zikaphatikizidwa palimodzi ndikuyika katundu, njira zopatsirana nkhawa za gawo lililonse zimakhala zosiyana ndipo mapindikidwewo amakhalanso osiyana. Pansi pa zochitika za vertical load ndi lateral impact ya galimotoyo, The surface layer idzakhala ndi mchitidwe wosasunthika wokhudzana ndi maziko. Ngati mikangano yamkati ndi mphamvu yomangirira ya pamwamba pawokha komanso kupindika ndi kupsinjika kwapansi pa gawo lapansi sikungathe kupirira kupsinjika kosunthikaku, kusanjikizako kumatha kuvutitsidwa ndi kukankha, kupukuta, ngakhale kumasula ndi kusenda. Choncho, mphamvu yowonjezera iyenera kuperekedwa Kuteteza kusuntha uku pakati pa zigawo. Pambuyo powonjezera chosindikizira cham'munsi, kukangana ndi kugwirizanitsa mphamvu zoletsa kusuntha kumawonjezeka pakati pa zigawo, zomwe zingathe kugwira ntchito zogwirizanitsa ndi kusintha pakati pa kukhazikika ndi kufewa, kotero kuti wosanjikiza pamwamba, wosanjikiza, wosanjikiza, khushoni ndi maziko a nthaka akhoza kukana. katundu pamodzi. Pofuna kukwaniritsa cholinga chokweza mphamvu zonse zamsewu.

Zosalowa madzi komanso zosalowetsedwa
M'mapangidwe amitundu yambiri amsewu waukulu wa phula, wosanjikiza umodzi uyenera kukhala wosakaniza wa konkire wamtundu wa I wandiweyani. Cholinga chake ndi kupititsa patsogolo kusanjika kwa pamwamba ndi kuteteza madzi apamtunda kuti asakokoloke ndi kuwononga mayendedwe ndi pansi. Koma izi zokha sikokwanira, chifukwa kuwonjezera pa mapangidwe zinthu, kumanga phula konkire imakhudzidwanso ndi zinthu zambiri monga phula khalidwe, katundu miyala, specifications miyala ndi kuchuluka, mafuta-mwala chiŵerengero, kusakaniza ndi kuyika zida, anagubuduza kutentha. , kugubuduza nthawi, etc. Impact. Chosanjikiza chapamwamba, chomwe chiyenera kukhala ndi kachulukidwe kabwino komanso pafupifupi zero madzi amadzimadzi, nthawi zambiri amakhala ndi madzi ochulukirapo chifukwa cha ulalo wina womwe sulipo, motero zimakhudza mphamvu yotsutsa-seepage ya phula la asphalt. Zimakhudzanso kukhazikika kwa phula la asphalt palokha, gawo loyambira ndi maziko a nthaka. Choncho, "Technical Specifications for Construction of Highway Asphalt Pavement" imafotokoza momveka bwino kuti pamene ili pamalo amvula ndipo phula lamtunda lili ndi mipata yayikulu ndi madzi ochulukirapo, malo osindikizira otsika ayenera kuikidwa pansi pa asphalt pamwamba wosanjikiza.

Ndondomeko yomanga yosanjikiza yapansi
Mfundo yogwirira ntchito yosindikizira miyala ya synchronous ndikugwiritsa ntchito zida zapadera zomangira, makina osindikizira miyala ya synchronous, kupopera phula lotentha kwambiri komanso miyala yoyera, youma komanso yofananira pamsewu pafupifupi nthawi imodzi, kuwonetsetsa kuti phula ndi mwala zimapopera. msewu pamwamba pa nthawi yochepa. Malizitsani kuphatikiza ndikupitiriza kulimbikitsa mphamvu pansi pa zochita za katundu wakunja.
Mitundu yosiyanasiyana ya zomangira phula ingagwiritsidwe ntchito kusindikiza panthawi imodzi ya miyala ya phula: phula lofewa, phula lopangidwa ndi polima SBS, phula lopangidwa ndi emulsified, phula lopangidwa ndi polima lopangidwa ndi phula, phula losungunuka, ndi zina zotero. tenthetsani phula wamba wotentha mpaka 140 ° C kapena kutentha kwa SBS kusinthidwa phula mpaka 170 ° C. Gwiritsani ntchito galimoto yoyatsira phula kuti mupondereze phula pamtunda wokhazikika kapena wosasunthika, ndiyeno falitsani molingana. Kuphatikizikako kumapangidwa ndi miyala ya miyala yamwala yokhala ndi tinthu tating'ono ting'onoting'ono 13.2 ~ 19mm. Iyenera kukhala yoyera, yowuma, yopanda nyengo, yopanda zinyalala, komanso yowoneka bwino. Kuchuluka kwa miyala kuyenera kukhala pakati pa 60% ndi 70% ya malo onse opaka.
Mlingo wa asphalt ndi aggregate umayendetsedwa molingana ndi kuchuluka kwa 1200kg·km-2 ndi 9m3·km-2 motsatana. Kumanga molingana ndi dongosololi kumafuna kulondola kwakukulu kwa kuchuluka kwa kupopera mbewu kwa phula ndi kufalikira kwamagulu, kotero kuti phula la miyala ya synchronous kusindikiza liyenera kugwiritsidwa ntchito pomanga. Pamwamba pa simenti-yokhazikika miyala yamtengo wapatali yomwe yapoperapo, kufalitsa phula lotentha kapena phula losinthidwa la SBS mu kuchuluka kwa pafupifupi 1.2 ~ 2.0kg·km-2, ndiyeno kufalitsa mwala wosanjikiza ndi chidutswa chimodzi. kukula pamwamba. Kukula kwa miyala ndi miyala ya tinthu ting'onoting'ono kuyenera kufanana ndi kukula kwa tinthu tating'onoting'ono ta konkire ya asphalt yomwe imayikidwa pamtunda wosanjikiza madzi. Malo ake ofalikira ndi 60% mpaka 70% ya msewu wonse, ndiyeno mphira wa tayala wa tayala amagwiritsidwa ntchito kuti akhazikitse kupanikizika kwa 1 mpaka 2 kuti apange. Cholinga cha kufalitsa miyala yamtundu umodzi ndikuteteza wosanjikiza wosanjikiza madzi kuti usawonongeke ndi matayala a magalimoto omanga monga magalimoto ophatikizika ndi asphalt mix paver tracks panthawi yomanga, komanso kuteteza phula losinthidwa kuti lisasungunuke chifukwa cha kutentha kwambiri. ndi kusakaniza kotentha kwa asphalt. Gudumu lidzamamatira ndikukhudza kumanga.
Mwachidziwitso, miyalayi siimalumikizana. Popanga chisakanizo cha asphalt, kusakaniza kwa kutentha kwakukulu kumalowetsa mipata pakati pa miyala, zomwe zimapangitsa kuti membrane yosinthidwa ya asphalt isungunuke ndi kutentha. Pambuyo pakugubuduza ndi kuphatikizika, miyala yoyera imakhala miyala ya phula imayikidwa pansi pa phula lapangidwe kuti likhale lonse, ndipo "wosanjikiza wolemera" wa pafupifupi 1.5cm umapangidwa pansi pazitsulo zomangamanga. bwino ntchito ngati wosanjikiza madzi.