Dombo reLimestone idombo remugungwa, rinonyanya kuumbwa necalcium carbonate nemagnesium carbonate. Chinangwa charo chikuru ndechekugadzira jecha. Zvimedu zvematombo nehupfu hwematombo zvinogadzirwa panguva yekugadzirisa nekugadzira zvinova matombo emugungwa. Matombo eLimestone anokuyiwa kuita hupfu hwelimestone nechigayo chekukuya chedombo remararaInogona kushandiswa semusanganiswa wekongiri uye sezvikamu zvakagadzirwa kare zvekongiri kuti ishandise zvakanyanya machipisi ematombo. Semugadziri we dombo remabwechigayo chekukuyamuchina, HCMilling (Guilin Hongcheng) ichatanga kushandiswa kwedombo remabwechigayo chekukuya muchina wekugadzirisa upfu hwe limestone.

Upfu hwechicherwa cheLimestone hunoreva zvidimbu zveupfu zvine saizi iri pasi pe0.075mm (zvinotsanangurwa mu hydraulic concrete ine saizi iri pasi pe0.16mm) zvinogadzirwa panguva yekugadzirisa jecha rekuvaka. Nzira huru dzekushandisa ndeidzi:

(1) Limestone yakakuyiwa kuita upfu hwezvicherwa semusanganiswa wekongiri: Kushandiswa kweupfu hwezvicherwa zvelimestone muindasitiri yekongiri kwave kuchidzidzwa kwenguva yakareba. Sechinhu chikuru chezvicherwa, mashandisirwo eupfu hwezvicherwa zvelimestone semusanganiswa wekongiri kwave chinhu chinonyanya kufarirwa muindasitiri yekongiri yemumba. Upfu hwezvicherwa husingasanganisike. Semusanganiswa wekongiri, upfu hwezvicherwa hune zvakanakira zviri pachena uye zvinogoneka: chekutanga, kuwedzerwa kweupfu hwezvicherwa kunogona kukurumidzisa kunyorova kwesimende; Chechipiri ndechekuti zvidimbu zveupfu hwezvicherwa zvelimestone zvine chimiro uye zvinozadza. Hazvingogone kuwedzera kuyerera kwemusanganiswa chete, kuvandudza grading yezvikamu zvesimende, asiwo kuvandudza chimiro chepore yekongiri; Chechitatu, upfu hwezvicherwa hune simba rinoita basa. Mumakore achangopfuura, China yakaburitsa zviyero zvenyika nedzemunharaunda, izvo zvakasimbisa uye zvakajairwa kushandiswa kweupfu hwezvicherwa sechiwanikwa. Semusanganiswa wekongiri, upfu hwezvicherwa hwakakuyiwa hune musika wakakura uye mabhenefiti akanaka munharaunda nehupfumi munguva refu.

(2) Kugadzirira kusanganiswa kwezvikamu zvakagadzirwa kare nekukuya limestone kuita upfu hwemineral: Sisitimu itsva yezvikamu zvakagadzirwa kare ine zvakanakira zvekumhanya kwekuvaka nekukurumidza, kudzora mhando nyore, kuchengetedza zvinhu, kunaka kwechitarisiko, kugara kwenguva refu, kunyorova kushanda panzvimbo, uye kuchengetedzwa kwezvakatipoteredza. Mubasa rezvikamu zvakagadzirwa kare, huwandu hwakawanda hweupfu hwemineral hwe limestone mumatavi e limestone hunogonawo kushandiswa se concrete nesimende. Standard for Quality Control of Precast Concrete Components (DB11/T1312-2015) inoda kuti pakusarudza mineral admixtures dzakadai se limestone mineral powder ye precast concrete, mashandiro ayo anofanira kusangana nezvinodiwa nezvinodiwa. Dzimwe ongororo dzakaratidza kuti limestone powder inogona kuvandudza kuyerera uye kudzivirira kuparadzaniswa kwe concrete mukugadzira zvikamu zve precast concrete zvisingade kudedera uye zvinozvibatanidza, uye ine mhedzisiro yakajeka pakuumbwa kwe concrete, kugadzirisa matambudziko ekushomeka kwezvinhu zvakagadzirwa. Kuwedzera kune limestone powder yataurwa pamusoro apa, dolomite uye granite powder ine hunhu hwakafanana ne limestone inogonawo kushandiswa sekusanganiswa kwe concrete nesimende.

Pamusoro pekushandiswa muindasitiri yekuvaka, migodhi yejecha re limestone yepamusoro inogona kushandiswa kugadzira zvigadzirwa zvepamusoro zvakaita secalcium carbonate, upfu hwecalcium yakawanda yekufambisa, upfu hwe limestone hwekubvisa sulfurization mumagetsi ekupisa. Mashandisirwo aya haaparadzaniswi nerutsigiro rwedombo remabwechigayo chekukuya Muchina uyu. Semugadziri wemuchina uyu.dombo remabwechigayo chekukuyamuchina, HCMilling (Guilin Hongcheng) inogadzira michina yekugaya yematombo e limestone yakaita seRaymond wedombo remararamuchina wekugaya, dombo remabwe rakamiramuchina wekukuya, limestone yakanaka kwazvochigayo chekukuyamuchina, nezvimwewo. Inopa rutsigiro rwakanaka rwemidziyo yekugadzira nekushandisa upfu hwe limestone, uye inogona kugadzira upfu hwe limestone hwakakura hunosvika 80-2500. Chirongwa che limestone powder chine ruzivo rwakakura mukugadzira uye mabhokisi akawanda evatengi.

Kana muine zvinodiwa, ndapota taurai nesu kuti muzive ruzivo rwemidziyo yacho dombo remabwechigayo chekukuya muchina.