Cov ntaub ntawv xav tau rau cov pobzeb pem teb

Pem Teb Vuas: Ntau yam, specifications, thiab lub cev lub cev yuav tsum ua raws li cov kev cai tsim thiab cov kev cai ntawm lub teb chaws cov qauv tam sim no. Lawv yuav tsum muaj cov xim sib xws, tiaj tus, thiab cov npoo zoo nkauj thiab cov ces kaum, tsis muaj qhov tsis xws luag xws li cov kab nrib pleb, chipped npoo, lossis cov fab tawg. Cov khoom pov thawj ntawm kev ua tau zoo thiab cov ntawv tshaj tawm kev xeem yuav tsum tau muab.

Cement: Portland cement, Portland cement zoo tib yam, lossis slag cement nrog qib siab tsis tsawg dua 32.5. Kev sib xyaw ntau yam lossis qib ntawm cov cement yog nruj me ntsis txwv. Thaum xa khoom, cov cement yuav tsum tau nrog lub chaw tsim khoom daim ntawv pov thawj ntawm kev ua raws thiab daim ntawv qhia kev xeem, thiab cov qauv yuav tsum raug coj mus kuaj dua -. Kev ua tau zoo yuav tsum ua raws li lub teb chaws tus qauv tam sim no "Portland Cement thiab Ordinary Portland Cement." Yog tias muaj kev tsis ntseeg txog qhov zoo, lossis yog tias cov cement tau khaws cia ntau tshaj peb lub hlis txij li thaum tawm hauv lub Hoobkas, rov- kev sim yog yuav tsum tau siv ua ntej siv, thiab kev siv yuav tsum yog raws li cov txiaj ntsig rov qab - xeem.

Dawb MAAs: Dawb Portland cement nrog qib zog tsis tsawg dua 32.5. Kev ua tau zoo yuav tsum ua raws li lub teb chaws tus qauv tam sim no GB 2015 "White Portland Cement."

Xuab zeb: Nruab nrab lossis ntxhib xuab zeb, dhau los ntawm 5 hli sieve, nrog cov av nplaum / av nplaum tsis pub ntau tshaj 3%. Kev ua tau zoo yuav tsum ua raws li lub teb chaws tam sim no tus qauv JGJ 52-1992 "Standard of Quality and Inspection Methods for Sand Use in Ordinary Concrete."

Dej: Cov dej ntim tau zoo dua. Yog tias siv lwm qhov dej, qhov dej zoo yuav tsum ua raws li "Standard for Mixing Water for Concrete."

Bonding tus neeg saib xyuas: Yuav tsum tau nrog lub chaw tsim khoom daim ntawv pov thawj ntawm kev ua raws thiab daim ntawv qhia kev xeem.