Ubusika buyeza, nokho iningi lamaphrojekthi wokwakha asaqhubeka.Nokho, ingabe uyazazi izimo zokufakwa kwe-PVC phansi ebusika?Kufanele kube namaphoyinti abalulekile, ngaphandle kwalokho akufanelekile ukufaka.
Izinga lokushisa lomoya: ≥18℃
Umswakama womoya: 40-65％
Izinga lokushisa elingaphezulu: ≥15℃
Izinga eliyisisekelo lokuqukethwe komswakama:
≤3.5% (fine?aggregate?concrete)
≤2% (usimende?udaka)
≤1.8% (Isitezi sokushisisa)
Kunezizathu ezithile zokwakhiwa okungekuhle:
1)Isitezi esingaphansi simanzi kakhulu, futhi asomile ngokwanele
2) Izinga lokushisa liphansi, futhi okokusebenza akukwazi ukunamathisela eduze nendawo engaphansi.
3) Ithonywe izinga lokushisa, isivinini sokunamathisela sihamba kancane
4) Ngemuva kokufakwa, ngenxa yomehluko wokushisa ebusuku, kulula ukuwenza lukhuni noma ukuthambisa.
5) Ngemuva kokuthunyelwa kwebanga elide, iphansi alihambisani nezinga lokushisa lendawo.
Ukuvimbela ukwakhiwa okubi, izinyathelo ezilandelayo kufanele zithathwe.
1)Qala ulinganise izinga lokushisa lendawo engaphansi.Uma ingaphansi kuka-10 ℃, ukwakhiwa akufanele kuqalwe.
2) amahora angu-12 ngaphambi noma ngemva kokufakwa, thatha izinyathelo ezidingekayo ukuze ugcine izinga lokushisa langaphakathi lingaphezu kuka-10 ℃.
3) Uma ukufakwa kusimende , okuqukethwe kwamanzi okungaphezulu kufanele kulinganiswe.Amanzi kufanele abe ngaphansi kuka-4.5%.
4) Izinga lokushisa liphansi kakhulu emnyango noma efasiteleni.Ngaphambi kokufaka, kufanele ihlole izinga lokushisa lapho ukuthi lingaphezu kuka-10 ℃.Ukulondolozwa kufanele kuthathwe ukugwema umehluko wokushisa.
Isikhathi sokuthumela: Nov-06-2015