Zibelesyo Zyakugwisya Maanzi Zibeleka Obotu: Kusumpula Kubeleka Kwakonkriti Mukuyasya Kwabuyo
Zibeela Zipati Zyakubelesya
Misanganisyo yakugwisya maanzi iibeleka obotu (mbuli misamu iizwa ku polycarboxylate) ninzila iinda kubota yakugwisya maanzi iijanika mumusika. Zibeleka kwiinda mukupanga bbazu lyakumwaika atala aamasementi, kulesya kubungana kwamasementi aboobo akusumpula kweenda akubeleka kwakonkriti. Ooku kumwaika takucheesyi buyo kubelesya maanzi pesi akuyungizya bupati akuyuma kwakonkriti. Kweezyanisya amisanganisyo yachiindi yakugwisya maanzi, nzila zibeleka obotu zipa mweelwe mupati wakucesya maanzi (kanjikanji 25%-40%) antoomwe akubelesya musamu muniini (kanjikanji 0.1%-0.3% yamweelwe woonse wazintu zyasementi), kakunyina kunyonganya busena.
Mumapulojekiti aakuyaka, kubelesya misamu iigwisya maanzi kulakonzya kuyungizya manguzu aakusinikizya akukazyigwa kwamaanzi kwakonkriti, ikuyungizya buumi bwamayake. Mbuli chitondeezyo, mukuyaka maanda malamfu amabbulogwe mapati, zintu zigwasya kapati zitagwisyi maanzi zipa kuti konkriti kayeenda kabotu aawo mpokuyandika nguzu zyiingi, ikugwasya milimo yakuyaka. Kuyungizya waawo, misanganisyo iigwisya maanzi ilakonzya kucesya kuzwa bulowa akwaandaana mukonkriti, ikusumpula kweendelana akuzumanana kwawo.
Mumulimo wakuyaka kakunyina ntenda, bube bwabusena bwakusanganya zintu zigwisya maanzi bulayandika kapati. Kubelesya misamu iikonzya kucesya maanzi kulakonzya kucesya kubelesya sementi, aboobo kucesya muya uuzwa mumulengalenga. Kwiindawo, eezyi zintu zisanganizidwe zilakonzya kugwasya kuti konkriti iyume, ikucheesya mali yakubambulula akubelesya zintu zyakubelesya mumaanda. Misanganisyo myiingi iibeleka obotu yakucesya maanzi yakajana zyilengwa zyakukwabilila busena bwanyika yoonse, kweendelana amakanze aakusumpula zintu zitamani zyakuyaka kakunyina ntenda.
Akaambo kakuyaambele kwabusongo bwakuyaka, kubelesya misamu iigwisya maanzi akwalo kuyaabukomena. Mbuli chitondeezyo, mukonkriti iibeleka obotu (HPC) akonkriti iikonzya kuliyumya (SCC), zintu zipa kuti maanzi agwisigwe nzintu zipati zipa kuti kkomenti kaili kabotu mubukkale buli abulemu bupati. Kuyungizya waawo, misamu iigwisya maanzi ilakonzya kubelesegwa antoomwe azintu zimwi (mbuli zintu zipa kuti muya unjile) kuchitila kuti konkriti ibeleke kabotu.
Mumapulojekiti aakuyaka, kubelesya misamu iigwisya maanzi kulakonzya kuyungizya manguzu aakusinikizya akukazyigwa kwamaanzi kwakonkriti, ikuyungizya buumi bwamayake. Mbuli chitondeezyo, mukuyaka maanda malamfu amabbulogwe mapati, zintu zigwasya kapati zitagwisyi maanzi zipa kuti konkriti kayeenda kabotu aawo mpokuyandika nguzu zyiingi, ikugwasya milimo yakuyaka. Kuyungizya waawo, misanganisyo iigwisya maanzi ilakonzya kucesya kuzwa bulowa akwaandaana mukonkriti, ikusumpula kweendelana akuzumanana kwawo.
Mumulimo wakuyaka kakunyina ntenda, bube bwabusena bwakusanganya zintu zigwisya maanzi bulayandika kapati. Kubelesya misamu iikonzya kucesya maanzi kulakonzya kucesya kubelesya sementi, aboobo kucesya muya uuzwa mumulengalenga. Kwiindawo, eezyi zintu zisanganizidwe zilakonzya kugwasya kuti konkriti iyume, ikucheesya mali yakubambulula akubelesya zintu zyakubelesya mumaanda. Misanganisyo myiingi iibeleka obotu yakucesya maanzi yakajana zyilengwa zyakukwabilila busena bwanyika yoonse, kweendelana amakanze aakusumpula zintu zitamani zyakuyaka kakunyina ntenda.
Akaambo kakuyaambele kwabusongo bwakuyaka, kubelesya misamu iigwisya maanzi akwalo kuyaabukomena. Mbuli chitondeezyo, mukonkriti iibeleka obotu (HPC) akonkriti iikonzya kuliyumya (SCC), zintu zipa kuti maanzi agwisigwe nzintu zipati zipa kuti kkomenti kaili kabotu mubukkale buli abulemu bupati. Kuyungizya waawo, misamu iigwisya maanzi ilakonzya kubelesegwa antoomwe azintu zimwi (mbuli zintu zipa kuti muya unjile) kuchitila kuti konkriti ibeleke kabotu.
Zitondezyo
| Zina lyachintu | Sodium Naphthalene Sulphonate Formaldehyde (SNF/PNS/FDN/NSF) | |||||||||
| Mazina aambi | Poly Naphthalene Sulfonate | |||||||||
| Sulphonated Naphthalene Formaldehyde | ||||||||||
| Naphthalene Based Superplasticizer | ||||||||||
| Bunji bwa Sodium Sulfate | 5% 10% 18% | |||||||||
| Mbuchiboneka | Powder yamubala wa brown | |||||||||
| Kupaka | 25KG chikwama | |||||||||
| CAS NO | 36290-04-7 | |||||||||
| HS Code | 38244010 | |||||||||
| Kuvula | 14-15MTS ya 20'FCL | |||||||||
| Kulembela | Kusanganya konkriti, kupa kuti kweenda kabotu | |||||||||
Pepa lyakweendelezya bubotu
| ZINTU | SNF-A | SNF-B | SNF-C | ||||
| Zili mukati ≥ | 92% | 92% | 92% | ||||
| mpindu ya PH | 7-9 | 7-9 | 7-9 | ||||
| Ma Chloride aali mukati ≤ | 0.30% | 0.40% | 0.50% | ||||
| Bunji bwa Sodium Sulfate ≤ | 5% | 10% | 18% | ||||
| Bunji bwamaanzi aamusitachi (mm)≥ | 250 | 240 | 230 | ||||
| Mweelwe Mupati Wakucesya Meenda (%) | 26 | 25 | 23 |
Mubufwaafwi
Misanganisyo iigwisya maanzi nchintu chiyandikana loko mubusongo bwakupanga konkriti bwamazubaano. Tazisumpuli buyo kubeleka kwakonkriti pesi zilagwasyilizya kuyaka kutali kabotu akusumpuka kutamani. Kakuli kuyaambele kwabusongo, nzila zyakubelesya misamu iigwisya maanzi ziyooba zipati.