1. Slow down reflection cracks
① Kutsemuka kunotaridzika kunokonzerwa nekushushikana kwekushushikana muasphalt yakavharika pamusoro peiyo yekare kongiri pamusoro nekuda kwekusimuka kukuru kweiyo yekare kongiri pedo nemajoini kana kuputika. Inosanganisira kuchinjika kwakatwasuka kunokonzerwa nekuchinja kwekushisa uye humidity, uye iyo vertical shear displacement inokonzerwa nemutoro. Iyo yekutanga inoguma neyakaomeserwa tensile kusagadzikana mune asphalt yakavharika pamusoro pejoinhi kana kutsemuka; iyo yekupedzisira inokonzera asphalt yakavharika pamusoro pejoint kuti iwane yakakura flexural tensile kusagadzikana uye shear stress.
②Nekuti iyo modulus ye geogrid yakakura kwazvo, inosvika 67Gpa, inoshandiswa seyakaomarara interlayer ine yakakwirira kuomarara muasphalt overlay. Basa rayo nderekudzivirira kushushikana uye kusunungura kushushikana. Panguva imwecheteyo, inoshandiswa seasphalt kongiri yekusimbisa zvinhu kuti ivandudze chimiro chepamusoro Kumira uye shear kuramba inogona kuderedzwa kuti iwane chinangwa chekudzikisa kuputika. Kudzidzira kwakaratidza kuti simba rinoenderana rekutsemuka kwegomba rakachinjika iro rakachinja nzira rinogona kutamiswa 0.6 metres kubva payaitangira, uye zvekusimbisa zvinhu zvine hupamhi hunopfuura 1.5 metres zvinobatsira kuona kuti simba raparara zvachose pamativi ese e crack.
2. Anti-kuneta kutsemuka
①Iyo basa guru reasphalt rakavharika pane yekare simende kongiri pavement ndere kuvandudza mashandisirwo ebasa repavhu, asi hazvibatsire zvakanyanya pakubereka. Iyo kongiri yakaoma yakarongwa pasi pekafukidziro ichiri kuita basa rinokosha. Iyo asphalt yakafukidzwa pane yekare asphalt kongiri pavement yakasiyana, iyo asphalt yakafukidzwa inotakura mutoro pamwe chete neyekare asphalt kongiri pavement. Naizvozvo, mukuwedzera kune kuputika kwekufungidzira, kuneta kutsemuka kuchaitika zvakare nekuda kwekureba kwemhedzisiro yemitoro apo asphalt overlay inoitwa paasphalt kongiri pavements. Isu tinoita kuongororwa kwekunetseka pamusoro pemamiriro ekuremerwa kweasphalt akafukidzwa pane yekare asphalt konkrete pavement: sezvo asphalt yakafukidzwa inzvimbo inoshanduka ine zvinhu zvakafanana neasphalt overlay, kana ichiiswa mutoro, nzira yemugwagwa ichakotama. Shen. Iyo asphalt surface layer yakanangana nevhiri iri pasi pekumanikidzwa, uye mune imwe nzvimbo kunze kwekuremerwa kwevhiri, iyo yekumusoro layer iri pasi pekunetsekana. Sezvo simba renzvimbo dzenzvimbo mbiri dzakasimbiswa dzakasiyana uye dziri pedyo kune mumwe nemumwe, iyo The Junction yenzvimbo yesimba, ndiko kuti, kushanduka kamwe kamwe kwesimba, kunowanzokuvadza. Kuneta kuputika kunoitika pasi pekutakura kwenguva refu.
② Iyo fiberglass geogrid inogona kuparadzira iyo yataurwa pamusoro pekumanikidza kushushikana uye kunetseka kunetseka muasphalt pamusoro pedenga, uye kugadzira buffer zone pakati penzvimbo mbiri dzakamanikidzwa, uko kushushikana kunochinja zvishoma nezvishoma panzvimbo yekungoerekana, kuderedza kukanganiswa kwekamwe kamwe kushushikana paKuparadza. pamusoro peasphalt pamusoro. Panguva imwecheteyo, iyo yakaderera kurebesa kwegirazi fiber geogrid inoderedza kutsauka kweiyo nzira uye inovimbisa kuti iyo nzira haizoitike shanduko.
3. High tembiricha rutting
①Asphalt kongiri ine rheological properties pakupisa kwepamusoro, iyo inoratidzwa mu: asphalt road surface inova yakapfava uye inonamira muzhizha; pasi pechiito chekutakura motokari, nzvimbo yakasimbiswa yakasvibiswa, uye nzvimbo yeasphalt haigoni kudzorera zvakakwana kumutoro mushure mokunge mutoro wemotokari wabviswa Pasi pechiito chekudzokororazve kwemotokari, deformation yepurasitiki inoramba ichiunganidza, ichiita ruts. Mushure mekuongorora chimiro cheasphalt surface layer, tinogona kuziva kuti nekuda kwe rheological properties ye asphalt concrete pasi pekushisa kwepamusoro, hapana maitiro ari pamusoro pepamusoro anogona kudzora kufamba kwezvibatanidza mu asphalt konkriti kana yakatakura, zvichikonzera kufamba kweasphalt surface layer, Ichi ndicho chikonzero chikuru chekugadzira ruts.
②Shandisa girazi fiber geogrid muasphalt pamusoro pedenga, iyo inotamba skeleton basa muasphalt pamusoro pedenga. Iyo yakaunganidzwa muasphalt kongiri inomhanya nepakati pemagridi, ichigadzira yakasanganiswa mechanical interlocking system, inorambidza kufamba kweaggregate, uye kuwedzera lateral kusunga simba muasphalt surface layer. kusunda, kuitira kuti uite basa rekudzivisa rutting.
4. Ramba yakaderera tembiricha shrinkage kuputika
①Migwagwa yeasphalt munzvimbo dzinotonhora zvakanyanya, tembiricha yepasi munguva yechando iri padyo nekupisa kwemhepo. Pasi pemamiriro ekushisa akadaro, kongiri yeasphalt inoderera kana ichitonhora, zvichiita kuti iite kusagadzikana. Kana kushushikana kwekunetseka kunopfuura simba rekusimba reasphalt kongiri, kuputika kuchaitika, uye kuputika kuchaitika munzvimbo dzinenge dzakaputika, zvichikonzera zvirwere. Kubva pakuona kwezvinokonzeresa kutsemuka, maitiro ekuita simba reasphalt kongiri kurwisa kushushikana kwekushushikana ndiyo kiyi yekugadzirisa dambudziko.
②Kushandiswa kwegirazi fiber geogrid muasphalt pamusoro pedenga rinovandudza zvakanyanya simba rekusimba reasphalt kongiri, iyo inogona kuramba hombe yekumanikidza kusagadzikana pasina kukuvara. Pamusoro pezvo, kunyangwe kushushikana kuri panzvimbo panoitika kutsemuka kwakanyanyisa zvakanyanya nekuda kwekutsemuka munharaunda, zvishoma nezvishoma zvichanyangarika kuburikidza nekufambiswa kwegirazi fiber geogrid, uye mutswe hauchakura kuita mutswe. Pakusarudza girazi faibha geogrid, pamusoro pekuita kwayo indekisi inofanira kusangana nezvinodiwa zvetafura iri pamusoro, kutarisisa kwakanyanya kunofanirwa kubhadharwa kuti hupamhi hwayo husike pasi pe1.5m, kuitira kuti isangane nezvinodiwa kuti ine muchinjiko wakakwana. Sectional area kudzora fungidziro mitswe se interlayer. Bvisa zvizere simba rekutsemuka; panguva imwecheteyo, mesh saizi inofanira kunge iri 0.5 kusvika 1.0 nguva iyo yakakura particle size yeasphalt surface layer material, iyo inobatsira kuwana yakanyanya shear adhesiveness uye kukurudzira aggregate interlocking uye kuvharirwa.
Nguva yekutumira: Oct-08-2022