Ndezvipi zvinodikanwa kune zvigadzirwa zvemasonry mortar?

Izvo zvigadzirwa zvinoshandiswa mumasonry dhaka zvinoita basa rakakosha pakuona mashandiro, kunaka, uye kusimba kwechigadzirwa chakapedzwa. Zvinodiwa zvezvakagadzirwa zvemasonry mortar zvinowanzo sanganisira zvinotevera:

1. Cementitious Materials:
   • Portland simende: Yakajairika Portland simende (OPC) kana masimende akasanganiswa akadai sePortland simende ane nhunzi madota kana slag anowanzo shandiswa seyekutanga kusunga mumiriri mumatope ematombo. Iyo simende inofanirwa kuenderana neyakakodzera ASTM kana EN zviyero uye iine hunyoro hwakakodzera, nguva yekuseta, uye inomanikidza simba zvivakwa.
   • Lime: Hydrated lime kana lime putty inogona kuwedzerwa kune masonry mortar maumbirwo ekuvandudza kushanda, plastiki, uye kusimba. Lime inosimudzira chisungo pakati pedhaka uye masonry mayuniti uye inobatsira kudzikisira mhedzisiro ye shrinkage uye kuputika.
2. Aggregates:
   • Jecha: Jecha rakachena, rakakwenenzverwa, uye rakakurisa zvakafanira kuti uwane simba rinodiwa, kushanda, uye kutaridzika kwedhaka remasonry. Ijecha harifanire kunge risina tsvina, ivhu, silt, uye faindi yakawandisa. Zvisikwa kana kugadzirwa jecha kusangana ASTM kana EN zvirevo zvinowanzo shandiswa.
   • Aggregate gradation: Iyo particle saizi yekugovera yeaggregates inofanirwa kunyatso kudzorwa kuti ive nechokwadi chakakwana chetche kurongedza uye kuderedza voids mumatope matrix. Magiredhi akakwenenzverwa anobatsira kuvandudza kushanda, kusimba, uye kusimba kwedhaka remasonry.
3. Mvura:
   • Mvura yakachena, inonwika isina zvinosvibisa, munyu, uye yakawandisa alkalinity inodiwa pakusanganisa dhaka remasonry. Mvura-kune-simende reshiyo inofanirwa kunyatsodzorwa kuti iwane kuenderana kunodiwa, kushanda, uye kusimba kwedhaka. Yakawandisa mvura yemukati inogona kukonzera kuderera kwesimba, kuwedzera shrinkage, uye kushomeka kusimba.
4. Additives uye Admixtures:
   • Plasticizers: Chemical admixtures senge mapurasitiki ekudzikisa mvura anogona kuwedzerwa kune masonry dhaka maumbirwo ekuvandudza kushanda, kuderedza kudiwa kwemvura, uye kuwedzera kuyerera uye kuenderana kwedhaka.
   • Air-entraining agents: Air-entraining admixtures anowanzo shandiswa mudhaka remasonry kuvandudza kunyungudika-kunyungudika, kushanda, uye kusimba kuburikidza nekudzidzisa mabhuru emhepo asingaoneki mumatope matrix.
   • Retarders uye accelerators: Kudzoreredza kana kukurumidza kusanganiswa kunogona kuisirwa mumasonry dhaka maumbirwo kudzora kuseta nguva uye kugadzirisa kushanda pasi petembiricha chaiyo uye hunyoro mamiriro.
5. Zvimwe Zvishandiso:
   • Pozzolanic zvinhu: Supplementary cementitious zvinhu zvakadai senhunzi ash, slag, kana silica fume inogona kuwedzerwa kune masonry mortar kuvandudza simba, kusimba, uye kuramba sulfate kurwisa uye alkali-silica reaction (ASR).
   • Fibers: Synthetic kana mafibhi echisikigo anogona kuverengerwa mune masonry dhaka maumbirwo ekuwedzera kutsemuka kuramba, kukanganisa kupikisa, uye kusimba simba.

iyo mbishi inoshandiswa mumasonry dhaka inofanirwa kusangana nemhando yakatarwa, yakatarwa, uye maitiro ekuita kuti ive nechokwadi chekuita kwakanyanya, kusimba, uye kuenderana nemayuniti emasonry uye maitiro ekuvaka. Kudzora kwemhando uye kuyedzwa kwezvinhu zvakasvibirira kwakakosha kuti ive nechokwadi chekuenderana uye kuvimbika mukugadzirwa kwemasonry dhaka.