Nhau

Post Zuva: 23, Sep, 2024

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1) Admixture

Iyo Dosage yeAdmixture idiki (0.005% -5% yeiyo siment misa) uye mhedzisiro yakanaka. Inofanirwa kuverengerwa zvakanyatsojeka uye kukanganisa kuremerwa hakufanirwe kupfuura 2%. Type uye dosage yeAdmixture inofanira kutsanangurwa kuburikidza nekuedzwa kubva pazvinhu zvakadai sekongiri yekuita, kuvaka mamiriro ezvinhu, kongiri yemamiriro ekunze uye kusanganisa ratios. Kana ichishandiswa muchimiro chemhinduro, huwandu hwemvura mumhinduro hunofanirwa kuverengerwa muhuwandu hwemvura yekusanganisa.

Kana kushandiswa kwakasanganiswa kwevaviri kana kudarika zvinokonzeresa zvinokonzeresa kuita kana kufungidzira kwemhinduro, mhinduro dzinofanira kugadziriswa zvakasiyana uye dzinowedzerwa kune musanganiswa zvichiteerana.

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(2) mvura kuderedza mumiririri

Kuti ave nechokwadi chekuvhengana kwemvura, iyo yemvura-inoderedza mumirimo inofanirwa kuwedzerwa muchimiro chemhinduro, uye huwandu hunogona kuwedzerwa nenzira kwayo sezvo tembiricha ichisimuka. Iyo yemvura-inoderedza mumiririri inofanirwa kuwedzerwa kune musanganiswa panguva imwe chete semvura yekusanganisa. Paunenge uchitakura kongiri nehuremu hwemusanganiswa, iyo yemvura-inoderedza mumiririri inogona kuwedzerwa usati watasurura, uye zvinyorwa zvinodzingwa mushure mekukurudzira kwe60-120 masekondi. Yakajairwa mvura-kuderedza adminture zvakakodzera kuvakwa kongiri kana iyo zuva nezuva tembiricha iri pamusoro pe5 ℃. Kana zuva nezuva tembiricha iri pazasi 5 ℃, dzinofanira kushandiswa mukubatanidzwa nekutanga-simba adMixture. Paunenge uchishandisa, teerera kutarisisa nekubvunda uye degassing. Concrete yakasanganiswa neyemvura-inoderedza mumiririri anofanirwa kusimbiswa mune yekutanga nhanho yekurapa. Munguva yekurapa steam, inofanira kusvika kune imwe simba isati yaputswa. Vazhinji vakanyanya kunaka-mvura-yekudzora vamiririri vane kurasikirwa kwakanyanya kushoma kana ichishandiswa mukongiri. Iko kurasikirwa kunogona kuve makumi matatu muzana -50% mumaminitsi makumi matatu, saka chengetedzo inofanira kutorwa panguva yekushandisa.

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Concrete ine yakakwirira ye-free-thaw kuramba zvinodiwa zvinofanirwa kusanganiswa nevamiriri vemhepo-yekupinza mumhepo kana kuti vamiriri vemvura. Yakarembera kongiri uye steam-yakarongedzwa kongiri haifanire kushandisa mhepo-yekupindira vamiririri. Iyo mhepo-inopinda mumiririri inofanirwa kuwedzerwa muchimiro chemhinduro, yakatanga kuwedzerwa kumvura yekusanganisa. Mhepo-yekushambadzira mumiririri inogona kushandiswa mukubatanidzwa neyemvura-yekudzora mumiririri, yekutanga mumiririri, kudzoreredza, uye adiforreeze. Mhinduro yakagadzirirwa inofanira kunyimwa zvizere. Kana paine fliveculing kana kufungidzira, inofanira kupiswa kuti ibvise. Concrete neyemhepo-inopinda mumiririri inofanira kunge ichisanganiswa nemhepo, uye nguva yekusanganisa inofanirwa kunge yakakura kupfuura maminetsi matatu uye isingasviki maminitsi mashanu. Iyo nguva kubva pakurasa kudurura inofanira kupfupikiswa zvakanyanya sezvinobvira, uye nguva yekubvunda haifanire kupfuura masekondi makumi maviri kuti urege kurasikirwa kwemhepo.

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(4) kudzoreredza uye kudzosera mvura kudzora mumiririri

Inofanira kuwedzerwa muchimiro chemhinduro. Kana paine zvakawanda zvisingaonekwi kana zvisinganzwisisike zvinhu, zvinofanirwa kumutswa zvizere zvisati zvaitika usati washandisa. Nguva yekukurudzira inogona kuwedzerwa nemaminitsi 1-2. Inogona kushandiswa mukubatanidzwa pamwe nezvimwe zvinhambiringa. Inofanira kudiridzwa uye kurapwa mushure mekunge kongiri yapera. Retarder hazvifanirwe kushandiswa mukuvaka kongiri uko kushoma kwezuva tembiricha iri pazasi 5 ℃, hazvifanirwe kushandiswa ndega kwekongiri uye steam-kurapwa kongiri nezvinodiwa zveSimba.


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