Umhla wokuposa: 26, DED, 2022
1. Ukunciphisa amanzi kwikhonkrithi
Ukucutha amanzi okunciphisa amanzi ziimveliso zekhemikhali eziveliswayo kwikhonkrithi kunokwenza i-slump enqwenelekayo kwindawo ephantsi yesamente kunoko iqhele ukuba iqhele. Ukunciphisa amanzi okunciphisa amanzi kusetyenziselwa ukufumana amandla athile ekhonkrithi kusetyenziswa umxholo wesamente esezantsi. Iziqulatho zesamente eziphantsi ziphumo ukukhutshwa kwe-CO2 ye-CO2 kunye nokusetyenziswa kwamandla kumthamo wekhonkrithi ovelisiweyo. Ngolu hlobo lomxokelelwane, iipropathi zekhonkrithi ziphuculwe kwaye zinceda kwikhonkrithi phantsi phantsi kweemeko ezinzima. Abahambisi bamanzi basetyenziswa ngokuyintloko kwiidesika ze-bridge, i-slimp yekhonkrithi ebonakalayo, kunye nekhonkrithi yekhonkrithi. Ukuhambela phambili kwamva nje kwitekhnoloji yokukhuphela kukhokelele kuphuhliso lwamanzi asephakathi.
I-2. Ikhonkrithi yekhonkrithi: I-Superplasticindizers
Eyona njongo iphambili yokusebenzisa i-Superplasticindize ivelisa ikhonkrithi ehamba ngesantya esiphezulu kuluhlu lwamalungu asixhenxe ukuya kwi-9 ukuya kwi-intshi eqinileyo kwi-hluibration ayinakufezekiswa ngokulula. Olunye usetyenziso oluphambili yimveliso yamandla aphezulu ekhonkrithi kwi-W / C isuka kwi-0.3 ukuya kwi-0,4. Kufunyenwe ukuba uninzi lweendidi ezininzi zesamente, i-superplastikizer iphucula ukusebenza kwekhonkrithi. Ingxaki enye enxulumene nokusebenzisa i-Gight Righ Screen kwikhonkrithi yilahleko. Ikhonkrithi ephezulu kakhulu equkethe i-superplastikizer inokwenziwa kunye nokuxhathisa okuphezulu, kodwa umxholo womoya kufuneka ukonyuswe kwikhonkrithi ngaphandle kwe-superplastiki.
3. Ikhonkrithi yekhonkrithi: Ukulungiswa kwe-CORT
Cwangcisa ubuyisela ubumbeko lwekhonkrithi lwekhonkrithi. Ezi ntlobo zisetyenziselwa ikhonkrithi ziqhele ukunciphisa isiphumo samaqondo obushushu aphezulu anokuvelisa ukhuseleko lokuqala lwekhonkrithi. Cwangcisa Ukubuyiselwa kwakhona kusetyenziswa kulwakhiwo lwendlela yekhonkrithi, ukuvumela ixesha elingakumbi lokugqiba iindlela zekhonkrithi, ukunciphisa iindleko ezongezelelweyo zokubeka umtya wekhonkrithi wekhonkrithi kwaye uncede ukuphelisa umanyano lwekhonkrithi. I-RETESEREST nayo ikwanokusetyenziselwa ukumelana nokuqhekeka ngenxa ye-formoction enokuthi yenzeke xa ii-slabs ezithe tyaba zifakwe kumacandelo. Uninzi lwabahlawuli luyasebenza njengabahambisi bamanzi kwaye banokuthintela umoya wekhonkrithi
4. Ikhonkrithi yekhonkrithi: Iarhente yokungena komoya
Ukungenela ikhonkrithi ikhonkrithi kunokunyusa ukuqina kwekhonkrithi. Olu hlobo lomxokelelwane luvelisa ikhonkrithi enokusetyenzwa kakhulu kunekhonkrithi engeyiyo ikhonkrithi ngelixa inciphisa ukopha ikhonkrithi. Ukuphuculwa kokumelana nekhonkrithi kwintshukumo yeqabaka enkulu okanye i-freeze / thaw thaw. Ezinye izibonelelo ezivela kulo:
a. Ukunganyangeki okuphezulu kwimijikelezo yokuthambisa kunye nokomisa
b. Inqanaba eliphezulu lokusebenza
c. Inqanaba eliphezulu lokuqina
Iibhubhu zomoya ezingenayo zisebenza njenge-buffer yenyama ngokuchasene nokuqhekezwa okubangelwa kukucinezelwa kwegama levolumu yamanzi. Umoya owonwabileyo wokudibana uyahambelana phantse yonke into yokuxhuzulwa kwekhonkrithi. Ngokwesiqhelo kwipesenti nganye yomoya ongenayo, amandla oxinzelelo aya kuncitshiswa malunga neepesenti ezintlanu.
I-5. Ukudityaniswa kwekhonkrithi: Ukukhawulezisa
Ukuncitshiswa kwekhonkrithi yekhonkrithi yongezwa kwikhonkrithi ngexesha lokuxuba okokuqala. Olu hlobo lomxokelelwane lunokunciphisa kwangoko kunye nexesha elide yokomisa. I-Shrinkage Ukunciphisa ubungqingqwa kunokusetyenziswa kwiimeko apho ukuqhekeza i-shrinkgess kunokukhokelela kwiingxaki zomoya okanye apho inani elikhulu lezinye ze-shrinkage azifuneki kwezizathu zoqoqosho okanye ezobuchwephesha. I-Shrinkage Ukunciphisa ubungqingqwa, kwezinye iimeko, kuncitshiswe uphuhliso lwamandla kumibini kwiminyaka yokuqala neyemva kwexesha.
6.Cesteceteete
I-Shrinkage-Ukunciphisa ukunciphisa ikhonkrithi kongezwa kwikhonkrithi ngexesha lokuxuba okokuqala. Olu hlobo lomxokelelwane lunokunciphisa kwangoko kunye nexesha elide yokomisa. I-Shrinkage Ukunciphisa ubungqingqwa kunokusetyenziswa kwiimeko apho ukuqhekeza i-shrinkgess kunokukhokelela kwiingxaki zomoya okanye apho inani elikhulu lezinye ze-shrinkage azifuneki kwezizathu zoqoqosho okanye ezobuchwephesha. I-Shrinkage Ukunciphisa ubungqingqwa, kwezinye iimeko, kuncitshiswe uphuhliso lwamandla kumibini kwiminyaka yokuqala neyemva kwexesha.
I-7. Ikhonkrithi yekhonkrithi: Ukuthintelwa kwekhonkrithi
I-Colossion-ethintela ukuQaphela iwela kudidi olukhethekileyo lodidi olukhethekileyo kwaye isetyenziselwa ukususwa kancinci kokunyanzeliswa kwentsimbi kwikhonkrithi. I-Interrosion Ithintelo inokunciphisa kakhulu iindleko zesondlo zomelezelwa kwekhonkrithi yekhonkrithi kulo lonke ubomi benkonzo yesiqhelo yeminyaka engama-30 ukuya kwengama-40. Olunye uhlengahlengiso olukhethekileyo lubandakanya ukunciphisa ukunciphisa ukunciphisa ukunciphisa ukucutha kunye no-Alkali -ilical Anter. Ukuthintelwa kokungavisiswa kwemifanekiso akunampembelelo kangako kumandla kwiminyaka kamva kodwa kungakhawulezisa ukukhula kwamandla kwangoko. I-calcium nittite esekwe kwi-corrosion i-infiorion inhibitors ikhawulezisa amaxesha aphezulu kwi-COSTES malunga noluhlu lwamaqondo obushushu arhoxisayo ngaphandle kokuba benziwe i-remermatives yokukhawulezisa.
I-Post Time: NgoDE-27 ukuya ku-2002
