Swihlanganisi leswi Pfuxeta Mati swa Vutshila bya le Henhla: Ku Andzisa Matirhelo ya Konkriti eka ku Aka ka Rihlaza
Tinsimu Letikulu ta Xikombelo
Swihlanganisi leswi hungutaka mati leswi tirhaka kahle swinene (kufana na swihlanganisi leswi sekeriweke eka polycarboxylate) swiyimela muxaka wa xiyimo xale henhla swinene wa switirhisiwa swo hunguta mati leswi kumekaka emakete. Ti tirha hiku endla dispersion layer ehenhla ka swiphemu swa semende, ku sivela ku hlengeletiwa ka swiphemu swa semende naswona hindlela yaleyo ti antswisa ku khuluka naku tirha ka khonkhriti. Vuyelo lebyi bya ku hangalaka a byi hunguti ntsena ku tirhisiwa ka mati kambe byi tlhela byi engetela ku tsindziyela na ku tiya ka khonkhriti. Loko ku pimanyisiwa na swihlanganisi swa ndhavuko leswi hungutaka mati, ti version ta high-efficiency tinyika ti rates tale henhla to hunguta mati (hi ntolovelo 25%-40%) xikan’we na swilaveko swale hansi swa mpimo (hi ntolovelo 0.1%-0.3% wa nhlayo hinkwayo ya switirhisiwa swa semende), laha kungana ku khumbeka lokuntsongo eka mbango.
Eka tiphurojeke to aka, ku tirhisiwa ka swihlanganisi leswi hungutaka mati swi nga ndlandlamuxa swinene matimba ya ntshikelelo na ku tiya ka mati ya khonkhriti, leswi engetelaka vutomi bya vutirheli bya swivumbeko. Xikombiso, eka ku akiwa ka miako yale henhla na mabuloho lamakulu, swihlanganisi leswi hungutaka mati leswi tirhaka kahle switiyisisa ku khuluka kahle ka khonkhriti ehansi ka swilaveko swa matimba yale henhla, leswi olovisaka matirhelo yo aka. Ku engetela kwalano, swihlanganisi leswi hungutaka mati swinga hunguta ku huma ngati na ku hambanisiwa eka khonkhriti, leswi antswisaka kufana ka yona xikan’we naku tshamiseka.
Eka ntirho wa ku aka ka rihlaza, swihlawulekisi swa mbango swa swihlanganisi leswi hungutaka mati swina nkoka swinene. Ku tirhisiwa ka swihlanganisi leswi hungutaka mati leswi tirhaka kahle swinga hunguta ku tirhisiwa ka semende, xisweswo swihunguta ku humesiwa ka khaboni. Ku tlula kwalaho, swihlanganisi leswi swinga ndlandlamuxa ku tiya ka khonkhriti, leswi hungutaka ntsengo wa nhlayiso xikan’we naku tirhisiwa ka switirhisiwa eka miako. Swihlanganisi swotala leswi hungutaka mati leswi tirhaka kahle swinene switlhele swikuma switifikheti swa mbango swa matiko ya misava, leswi fambelanaka na tipakani ta nhluvukiso lowu nga heriki ta ku aka ka rihlaza.
Hi nhluvukiso lowu yaka emahlweni wa thekinoloji yo aka, ku tirhisiwa ka swihlanganisi leswi hungutaka mati na swona swa kula. Xikombiso, eka khonkhriti ya matirhelo yale henhla (HPC) na khonkhriti leyi ti tiyisaka (SCC), swihlanganisi leswi hungutaka mati i swiengeteri swa nkoka leswi tiyisisaka swivumbeko swa self-leveling swa khonkhriti ehansi ka swiyimo swa density yale henhla na ku tiya. Ku engetela kwalano, swihlanganisi leswi hungutaka mati swinga tirhisiwa xikan’we na swihlanganisi swin’wana (kufana na ti retarders nati air-entraining agents) kuva swiya emahlweni swiantswisa swivumbeko swa khonkhriti.
Eka tiphurojeke to aka, ku tirhisiwa ka swihlanganisi leswi hungutaka mati swi nga ndlandlamuxa swinene matimba ya ntshikelelo na ku tiya ka mati ya khonkhriti, leswi engetelaka vutomi bya vutirheli bya swivumbeko. Xikombiso, eka ku akiwa ka miako yale henhla na mabuloho lamakulu, swihlanganisi leswi hungutaka mati leswi tirhaka kahle switiyisisa ku khuluka kahle ka khonkhriti ehansi ka swilaveko swa matimba yale henhla, leswi olovisaka matirhelo yo aka. Ku engetela kwalano, swihlanganisi leswi hungutaka mati swinga hunguta ku huma ngati na ku hambanisiwa eka khonkhriti, leswi antswisaka kufana ka yona xikan’we naku tshamiseka.
Eka ntirho wa ku aka ka rihlaza, swihlawulekisi swa mbango swa swihlanganisi leswi hungutaka mati swina nkoka swinene. Ku tirhisiwa ka swihlanganisi leswi hungutaka mati leswi tirhaka kahle swinga hunguta ku tirhisiwa ka semende, xisweswo swihunguta ku humesiwa ka khaboni. Ku tlula kwalaho, swihlanganisi leswi swinga ndlandlamuxa ku tiya ka khonkhriti, leswi hungutaka ntsengo wa nhlayiso xikan’we naku tirhisiwa ka switirhisiwa eka miako. Swihlanganisi swotala leswi hungutaka mati leswi tirhaka kahle swinene switlhele swikuma switifikheti swa mbango swa matiko ya misava, leswi fambelanaka na tipakani ta nhluvukiso lowu nga heriki ta ku aka ka rihlaza.
Hi nhluvukiso lowu yaka emahlweni wa thekinoloji yo aka, ku tirhisiwa ka swihlanganisi leswi hungutaka mati na swona swa kula. Xikombiso, eka khonkhriti ya matirhelo yale henhla (HPC) na khonkhriti leyi ti tiyisaka (SCC), swihlanganisi leswi hungutaka mati i swiengeteri swa nkoka leswi tiyisisaka swivumbeko swa self-leveling swa khonkhriti ehansi ka swiyimo swa density yale henhla na ku tiya. Ku engetela kwalano, swihlanganisi leswi hungutaka mati swinga tirhisiwa xikan’we na swihlanganisi swin’wana (kufana na ti retarders nati air-entraining agents) kuva swiya emahlweni swiantswisa swivumbeko swa khonkhriti.
Swihlawulekisi swa kona
| Vito ra Xiendliwa | Sodiyamu Naphthalene Sulphonate Xirhendzevutani (SNF/PNS/FDN/NSF) . | |||||||||
| Mavito Man’wana | Poly Naphthalene Sulfonate ya xirhendzevutani | |||||||||
| Naphthalene Formaldehyde leyi nga na sulphonated | ||||||||||
| Xitirhisiwa xa Superplasticizer lexi Sekeriweke eka Naphthalene | ||||||||||
| Nhlayo ya Sodium Sulphate | 5% 10% 18% . | |||||||||
| Xivumbeko | Powder ya Brown yo vevuka | |||||||||
| Ku paka | Nkwama wa 25KG | |||||||||
| CAS NO | 36290-04-7 | |||||||||
| Khodi ya HS | 38244010 | |||||||||
| Ntsengo | 14-15MTS Eka 20'FCL | |||||||||
| Xikombelo | Ku hlanganisiwa ka khonkhriti, swi antswisa ku khuluka | |||||||||
Xiphephana xa Vulawuri bya Khwalithi
| SWILO | SNF-A | SNF-B | SNF-C | ||||
| Vuxokoxoko lebyi Tiyeke ≥ | 92% . | 92% . | 92% . | ||||
| Nhlayo ya PH | 7-9 | 7-9 | 7-9 | ||||
| Nhlayo ya ti Chlorides ≤ | 0.30% . | 0.40% . | 0.50% . | ||||
| Nhlayo ya Sodium Sulfate ≤ | 5% . | 10% . | 18% . | ||||
| Ku khuluka ka Starch ya Net(mm)≥ | 250 | 240 | 230 | ||||
| Max Xiringaniso xo Pfuxeta Mati(%) . | 26. | 25. | 23. |
Hi ku komisa
Swihlanganisi leswi hungutaka mati i swiengeteri swa nkoka eka thekinoloji ya manguva lawa ya khonkhriti. A va ndlandlamuxi ntsena matirhelo ya khonkhriti kambe va tlhela va seketela ku aka ka rihlaza na nhluvukiso lowu nga heriki. Hi nhluvuko wa thekinoloji lowu yaka emahlweni, ntshembo wa ku tirhisiwa ka swihlanganisi leswi hungutaka mati wu ta anama swinene.