Cov ntsiab lus tseem ceeb ntawm kev tsim kho dej tsis zoo
Kev txhim kho tas mus li thiab kev sim cov ntaub ntawv tsis muaj dej, qhov kawg polymer cement waterproof khoom siv tau zoo heev, thiab nws yooj yim dua los tsim, thiab nws lub sijhawm khaws cia kuj ntev heev, feem ntau yuav tsis muaj teeb meem li ntawm 20 xyoo. Kuv xav muab rau sawv daws ntawm no.
1. Kev tsim kho yuav tsum tau ua nyob rau ntawm qhov kub siab tshaj 5 ° C, thiab nws tsis xav tias yuav tsim ua hauv 24 teev tom qab nag lossis daus.
2. Kev txhuam hniav yuav tsum tau nqa tawm kab rov tav thiab ntsug, nrog lub sijhawm ntawm 4h.
3. Yog tias txheej txheej muaj cov kev cai tshwj xeeb, koj tuaj yeem txiav txim siab nce tus naj npawb ntawm lub tsho tiv no.
4. Thaum lub sij hawm tsim kho, huab cua av noo tshwj xeeb yog qhov kub thiab txias. Lub sij hawm ziab yuav tsum tau ncua kom tsim nyog.
5. Yog tias qhov kub thiab txias ntawm qhov chaw tsim kho yog siab, cov dej tuaj yeem tsim nyog ntxiv thaum sib xyaw kom txo cov viscosity ntawm kev tsim kho.