Slurry sealing yakatanga kuGermany uye ine nhoroondo yemakore anopfuura makumi mapfumbamwe. Slurry seals ine huwandu hwakasiyana hwekushandisa uye inogona zvakare kushandiswa kugadzirisa migwagwa. Nekuti ine zvakanakira kuchengetedza simba, kuderedza kusvibiswa kwezvakatipoteredza uye kuwedzera mwaka wekuvaka, iri kuwedzera kufarirwa nenyanzvi dzemumigwagwa nevashandi vekugadzirisa. Slurry sealing layer inogadzirwa nematombo akakwenenzverwa machipisi kana jecha, mafirita (simende, lime, dota renhunzi, hupfu hwebwe, nezvimwewo), emulsified asphalt, ekunze admixtures nemvura, izvo zvinosanganiswa kuita slurry mune imwe chikamu uye kuparadzira A. pavement chimiro chinoshanda sechisimbiso mushure mekugadzirwa, kuomeswa, nekuumbwa. Nekuda kwekuti kuwirirana kweiyi musanganiswa slurry mutete uye chimiro chakaita senge slurry, ukobvu hwepaving hunowanzo pakati pe3-10mm, uye inonyanya kuita basa rekudzivirira mvura kana kuvandudza uye kudzoreredza basa repavement. Nekukurumidza kuvandudzwa kwepolymer-modified emulsified asphalt uye kuvandudzwa kwehunyanzvi hwekuvaka, polymer-modified emulsified asphalt slurry seal yakaonekwa.
Iyo slurry seal ine zvinotevera mabasa:
1. Kudzivirira mvura
Iyo aggregate particle size yemusanganiswa weslurry yakanaka uye ine imwe gradation. Iyo emulsified asphalt slurry musanganiswa inoumbwa mushure mekunge mugwagwa wagadzirwa. Inogona kunamatira zvakasimba kunzira yemugwagwa kuti iite dense surface layer, iyo inogona kudzivirira mvura nechando kubva pakupinda mu base layer uye kuchengetedza kugadzikana kwe base layer uye ivhu.
2. Anti-slip effect
Sezvo hupamhi hwekugadzira emulsified asphalt slurry musanganiswa wakatetepa, uye zvinhu zvakakasharara mukugadzika kwayo zvakagovaniswa zvakaenzana, uye huwandu hweasphalt hwakakodzera, chiitiko chekufashama kwemafuta mumugwagwa hachizoitika. Nzvimbo yemugwagwa ine nzvimbo yakanaka yakaoma. Iyo friction coefficient yakawedzera zvakanyanya, uye iyo anti-skid performance inovandudzwa zvakanyanya.
3. Pfeka kuramba
Cationic emulsified asphalt ine yakanaka kunamatira kune ese aridhi uye alkaline mineral zvinhu. Naizvozvo, iyo slurry musanganiswa inogona kugadzirwa yemhando yepamusoro yemamineral zvinhu izvo zvakaoma kupfeka uye kukuya, saka inogona kuwana yakanaka kupfeka kuramba uye kuwedzera hupenyu hwebasa remugwagwa.
4. kuzadza mhedzisiro
Iyo emulsified asphalt slurry musanganiswa ine yakawanda yemvura, uye mushure mekusanganisa, iri mune slurry mamiriro uye ine yakanaka fluidity. Iyi slurry ine kuzadza uye kuenzana maitiro. Inogona kumisa madiki madiki munzira yemugwagwa uye isina kuenzana pavement inokonzerwa nekusununguka uye kudonha kubva munzira yemugwagwa. Iyo slurry inogona kushandiswa kuvhara mitswe uye kuzadza makomba asina kudzika kuvandudza kutsetseka kwenzira.
Zvakanakira zve slurry seal:
1. Iine zviri nani kupfeka kuramba, kushanda kwemvura, uye kunamatira kwakasimba kune yakadzika pasi;
2. Inogona kuwedzera hupenyu hwemigwagwa uye kuderedza mari yakakwana yekugadzirisa;
3. Iyo yekumhanyisa yekuvaka inokurumidza uye ine zvishoma zvinokanganisa traffic;
4. Shanda patembiricha yakajairika, yakachena uye ine ushamwari.
Makiyi matekinoroji ekugadzira slurry sealing kuvaka:
1. Izvo zvinhu zvinosangana nezvinodiwa zvehunyanzvi. Iyo yakaunganidzwa yakaoma, iyo gradation inonzwisisika, iyo emulsifier mhando yakakodzera, uye slurry kusawirirana kuri pakati nepakati.
2. Muchina wekuisa chisimbiso une michina yepamusoro uye kushanda kwakagadzikana.
3. Mugwagwa wekare unoda kuti simba rose remugwagwa wekare rinosangana nezvinodiwa. Nzvimbo dzine simba risina kukwana dzinofanira kusimbiswa. Makomba nemitswe yakakomba zvinofanira kucherwa nokugadziridzwa. Mabhero nemapuranga ekugezesa anofanira kugayiwa. Mitswe yakakura kupfuura 3 mm inofanira kuzadzwa pachine nguva. Migwagwa inofanira kucheneswa.
4. Traffic management. Nyatso cheka traffic kudzivirira mota kuti dzisatyaire pane slurry chisimbiso isati yasimba.
