Umhla wokuThumela:18,Sep,2023

I-aggregate ithatha umthamo oyintloko wekhonkrithi, kodwa ixesha elide, kukho ukungaqondi kakuhle okuninzi malunga nomgangatho wokugweba umgangatho we-aggregate, kwaye ukungaqondi kakuhle kuyimfuneko ye-cylinder compressive force. Oku kungaqondi kakuhle kuvela kwindima yayo kwikhonkrithi, oko kukuthi, isanti kunye negrabile, njenge-skeleton yomntu, iparameter ebalulekileyo yokumisela amandla ekhonkrithi. Ngoko ke, iincwadi ezininzi zezifundo kunye nemigangatho emininzi yangoku kunye nemimiselo zisafuna amandla e-aggregates ukuba abe ngamaxesha angama-1.5 ukuya ku-1.7, okanye amaxesha ama-2 amandla ekhonkrithi elungiselelwe. Umbhali ukholelwa ukuba xa ibakala lokuqala loyilo lwekhonkrithi lisephantsi kakhulu, le mfuno ibekwe phambili, oko kukuthi, amandla oxinzelelo lwe-cylinder ye-aggregate yi-≥40MPa, ekucacayo ukuba isusa nje loo matye kunye nemozulu embi njenge-aggregate; Nangona kunjalo, amandla oyilo lwekhonkrithi aphuculwe kakhulu, kwaye isalandela ubudlelwane phakathi kwezi zibini zangaphambili, ngokucacileyo ziqhawule umtshato ngokwenyani. Enyanisweni, i-concrete ehlanganisiweyo ekhaphukhaphu ekhaya nakwamanye amazwe ilungisiwe kwaye isetyenziswe kubunjineli, kwaye amandla oxinzelelo lwe-cylinder ye-lightweight aggregate esetyenzisiweyo yi-15MPa kuphela okanye ephantsi, ngelixa amandla ekhonkrithi anokufikelela kwi-80 ukuya kwi-100MPa.

Enye ingcamango ephosakeleyo ebalulekileyo yimilinganiselo ephezulu ye-particle esebenzayo kwi-concrete ye-pumped okanye i-self-compacting concrete (SCC) amatye. Ekubeni kufuneka kubekho intshukumo ezalanayo phakathi kwamatye kwinkqubo yomxube onjalo ohamba kumbhobho wempompo kwaye uqukuqela kwitemplate, kokukhona ungqimba lwefilimu yodaka lokuthambisa ifilimu efunekayo kwintshukumo ehambelanayo phakathi kwamasuntswana amatye anobungakanani bamasuntswana amakhulu, oko kukuthi, ngakumbi. umthamo wepulp unokufuneka. Esi sisizathu sokuba kutheni i-19mm(iBritish 3/4inch) yeyona milinganiselo iphezulu yamasuntswana amatye asetyenziswa ekulungiseleleni imixube enjalo phesheya. Nangona ubukhulu becala ubungakanani bamatye asetyenzisiweyo buncinci, i-void ratio efuna ukugcwaliswa kumxube inkulu, ekhoyo i-balance point phakathi kwezi meko zingentla, kwaye inani lodaka olufunekayo kumxube lincinci.