IiPropati zeMechanical zeBasalt Fiber ezinqunqiweyo iintambo zeConcrete
IMVELISO INTSHAYELELO
Ikhonkrithi, njengesixhobo sokwakha esisetyenziswa ngokubanzi kubunjineli boluntu, ineempawu ezintle zoomatshini, kodwa ngokuqhubekeka kobunzulu bokusetyenziswa kobuchwephesha bobunjineli, iintsilelo zeempawu zayo ezisisiseko ziveliswa ngokuthe ngcembe. Ngenxa yeempawu ezisezantsi zokuqina kwamandla esinye seshumi kuphela samandla oxinzelelo, okukhokelela ekubeni amalungu enkqubo yokuqina athambekele ekuqhekekeni, okunciphisa ngokuthe ngqo ukuqina kwamacandelo, ukunciphisa umda wokusetyenziswa Izinto eziphathekayos. Ukuphucula iimpawu zokusebenza zobunjineli bekhonkrithi kunye nokusombulula iingxaki ekusetyenzisweni kwekhonkrithi, abaphengululi baye baphucula ukusebenza kweizinto eziphathekayo iminyaka emininzi kwaye ufezekise iziphumo zenqanaba ngenqanaba, njengokudityaniswa kwe-admixtures, ukulungelelanisa umlinganiselo wokuxuba, ukuphucula inkqubo yokuvelisa kunye neendlela zokulondoloza.
1. Izinto zokuvavanya kunye neendlela zokuvavanya
I-P. O 42.5 i-samente eqhelekileyo ye-silicate ikhethiwe, kunye ne-28d amandla okunyamezela kwe-48.3MPa kunye ne-28d amandla e-flexural ye-8.2MPa. isanti ephakathi enemodyuli ye fineness ye-2.5-2.6 isetyenziswe njenge-fine aggregate, enoxinano olubonakalayo lwe-1996kg/m3. ilitye elicunyuziweyo eliqhubekayo le-5-27mm lisetyenziswe njenge-aggregate erhabaxa, kunye noxinano olubonakalayo lwe-2737kg/m3. Kusetyenziswe izinga lokucuthwa kwamanzi ngama-40%. I-40% ye-Sika polycarboxylic acid esebenza kakhulu yokunciphisa amanzi yasetyenziswa. Ubude be iintambo ze-basalt fibre ezinqunqwe malunga ne-30mm, ububanzi be-monofilament malunga ne-15um, ubuninzi buyi-2.7g / cm3, imodyuli ye-elasticity yi-95-120MPa, amandla okuqina yi-3300-4500MPa, kunye nobude bekhefu malunga ne-2.5-30.
Ukulungelelaniswa okufanelekileyo okusetyenziswe kolu vavanyo kuboniswe kwiThebhile 1. Uvavanyo loxinzelelo luphunyezwa ngokweMigangatho yoVavanyo lweeNdlela zeMechanical Properties of Ordinary Concrete. Uvavanyo loxinzelelo luthatha i-100 × 100 × 100mm imizekelo ye-cubic, imizekelo emi-3 kwiqela ngalinye, ukunyanga okuqhelekileyo 28d.
| Uluhlu loku-1Ubungakanani bezinto ezisetyenziselwa ukulungiswa kwamaqela ahlukeneyo emizekelo | ||||||||
| Inombolo yesiriyeli | Umxholo weFayibha | Isixa semathiriyeli esetyenzisiweyo | ||||||
| Into | V(%) | M(kg/m3) | ikhonkrithi | uthuthu lwamalahle | isanti | ilitye | amanzi | isinciphisi samanzi |
| S0 | 0 | 0 | 420 | 60 | 656 | 1069 | 210 | 2.4 |
| S1 | 0.1 | 2.65 | 420 | 60 | 656 | 1069 | 210 | 2.4 |
| S1.5 | 0.15 | 3.975 | 420 | 60 | 656 | 1069 | 210 | 2.4 |
| S2 | 0.2 | 5.3 | 420 | 60 | 656 | 1069 | 210 | 2.4 |
| S2.5 | 0.25 | 6.625 | 420 | 60 | 656 | 1069 | 210 | 2.4 |
| S3 | 0.3 | 7.95 | 420 | 60 | 656 | 1069 | 210 | 2.4 |
| S3.5 | 0.35 | 9.9275 | 420 | 60 | 656 | 1069 | 210 | 2.4 |
2. Tngamanyathelo
(1) qala usule isiqwenga sovavanyo ukuba sivavanywe emva kokujonga imbonakalo kunye nokulinganisa ubungakanani, ngokuchanekileyo kum. Ukungalingani kwendawo yokuthwala i-specimen kufinyelela kwi-100mm, impazamo ayikho ngaphezu kwe-0.5mm, kwaye indawo yokuthwala kunye ne-non-perpendicularity esecaleni akufanele ibe mkhulu kuneemfuno ze-degree degree;
(2) i-axis ye-specimen yomatshini wokuvavanya ehambelana nombindi wepleyiti yoxinzelelo phantsi komatshini wokuvavanya. Vula umatshini wokuvavanya, xa iplate yoxinzelelo oluphezulu kunye nesiqwenga sovavanyo sivala, lungisa ukuxhaswa, ukwenzela ukuba amandla afane;
(3) inkqubo yokulayisha ukugcina okuqhubekayo kunye neyunifomu, isantya sokulayisha uvavanyo sithatha i-12kN / s-18kN / s; (4) bhala umthwalo omkhulu, ochanekileyo kwi-0.1MPa.
3. Iziphumo zovavanyo kunye nohlalutyo
Njengoko kunokubonwa kwiThebhile 2, amandla oxinzelelo lwe-7d yekhonkrithi kunye nokunyuka kwe Ibasalt Iifibers zibonisa iimpawu zokungaguquguqukiyo ukuhla kancinci, okubangelwa ikakhulu ukongezwa kweentsinga ze-basalt, kwimicu kunye nesamente eyenziwe kwindawo yojongano ukuvelisa umphezulu obuthathaka, kunye nokwanda kwesixa sokuxuba ifayibha, olu hlobo lomphezulu obuthathaka luyaqhubeka nokukhula, ngoko ke amandla okucinezela i-cubic ngokwemvelo ayaqhubeka nokuhla. Amandla oxinzelelo lwe-28d yekhonkrithi kunye nokunyuka kwe-basalt fiber dosage ibonisa ukuthambekela kokunyuka kokuqala kunye nokunciphisa, isizathu sokunyuka kokuqala sisixa esincinci se-doped.imicu yebasalt ukudlala indima yokudibanisa ukuya kumlinganiselo othile ekunciphiseni deformation ukushwabana ikhonkrithi ngokwayo, lo gama kwangaxeshanye ukwandisa umphezulu buthathaka isalamane ukuya 28d amandla ukwanda ukuba kakhulu ngaphantsi, nto leyo ekusebenzeni jikelele ukwanda amandla.
| Itheyibhile 2 Cube amaxabiso ovavanyo lwamandla oxinzelelo | |||
| Inombolo yesiriyeli | Umxholo weFayibha | Amandla oxinzelelo lweCubic | |
| Into | V(%) | 7d | 28d |
| S0 | 0 | 40.7 | 48.9 |
| S1 | 0.1 | 41.3 | 53.1 |
| S1.5 | 0.15 | 39 | 51.4 |
| S2 | 0.2 | 36.6 | 45.5 |
| S2.5 | 0.25 | 29.2 | 43.1 |
| S3 | 0.3 | 25.8 | 42.5 |
| S3.5 | 0.35 | 31.2 | 42.3 |
4. Isiphumo
Ukususela kumbono wamandla e-cubic compressive, xa i-shortcut ye-basalt fiber admixture ifikelela malunga ne-1-1.5% ngepesenti yomthamo, i-7d kunye ne-28 cubic yamandla okunciphisa i-shortcut. i-basalt fiber ikhonkrithi yandiswe kumlinganiselo othile xa kuthelekiswa naleyo yekhonkrithi ngaphandle komxube wefayibha.
