Cov txheej tiv thaiv corrosion nyob rau hauv cov cement mortar tuaj yeem tsim nrog cov tshuaj txau, phau ntawv compression, trailer lossis centrifugal pre-production txoj kev. Yog tias tsim nyog siv cov txheej txheem prefabricated raws li cov txheej txheem tiv thaiv sab hauv, kev tiv thaiv kev tiv thaiv yuav tsum tau txais kev pom zoo thaum lub sijhawm thauj mus los, kev teeb tsa, thiab cov txheej txheem rov qab.
Thaum lub sij hawm tsim kho, qhov sib xyaw ntawm cov cement mortar, qhov kev sib koom tes zoo ntawm cov cement thiab xuab zeb yog 1: (1-2), qhov poob ntawm cov cement mortar yog 60-80 hli, thiab lub zog compressive ntawm cement mortar yuav tsum. tsis tsawg dua 30MPa.
Lub appetizer nyob rau hauv cov cement mortar kev tsim kho ntawm cov neeg kho tshuab txau txoj kev yog lubricated, zoo, thiab uniform, thiab cov nyhuv yog zoo dua. Nyob rau xyoo 1930, kev tsim kho cov tshuaj tsuag tshuab tau raug xaiv. Tuam Tshoj tau siv hauv nroog xws li Shanghai, Qingdao, Dalian thiab lwm lub nroog txij li xyoo 1960. Thaum xaiv cov txheej txheem kev siv tshuab txau, cov kev hloov kho tuaj yeem raug xaiv rau lub luj tshib, peb qhov txuas, cov kav dej tshwj xeeb, thiab cov rooj vag valve nyob ze ntawm cov yeeb nkab seem, thiab txuas nrog cov khoom siv tshuaj tsuag ntaub nrog lub lubricating mutation ntu.
