Dab tsi cuam tshuam rau redispersible polymer hmoov muaj nyob rau hauv mortar zog?

Kev sib xyaw redispersible polymer hmoov (RPP) rau hauv mortar formulations ho cuam tshuam lub zog zog ntawm cov khoom tshwm sim. Kab lus no tshawb txog qhov cuam tshuam ntawm RPP ntawm lub zog mortar, nrog rau lawv cov kev cuam tshuam ntawm lub zog compressive, lub zog flexural, lub zog nplaum, thiab kev cuam tshuam.

1. Compressive zog:

Compressive lub zog yog cov cuab yeej tseem ceeb ntawm mortar, qhia tias nws muaj peev xwm tiv taus axial loads. Qhov sib ntxiv ntawm RPPs tuaj yeem txhim kho lub zog compressive los ntawm ntau lub tshuab:

Nce Cohesion:

RPPs ua raws li kev sib khi cov neeg sawv cev, txhawb kev sib koom ua ke zoo dua ntawm cov khoom khib nyiab. Qhov kev txhim kho kev sib txuas ua ke no ua rau muaj zog dua compressive los ntawm kev txo cov voids sab hauv thiab txhim kho tag nrho cov qauv kev ncaj ncees ntawm cov khoom.

Txo cov dej nqus dej:

RPPs txhim kho dej tuav hauv mortar, tso cai rau kom muaj dej ntau dua ntawm cov ntaub ntawv cementitious. Kev ywg dej kom zoo ua rau cov khoom siv ntom ntom ntom ntom ntom ntom nrog cov voids tsawg, ua rau muaj zog compressive ntau dua thiab qis dua cov dej nqus.

Txhim kho Flexural Strength:

Qhov yooj yim muab los ntawm RPPs tuaj yeem cuam tshuam lub zog compressive los ntawm kev tiv thaiv microcracks los ntawm kev nthuav tawm thiab ua rau cov khoom tsis muaj zog. Cov mortars uas muaj RPPs feem ntau pom muaj kev txhim kho flexural zog, uas cuam tshuam nrog kev txhim kho kev tiv thaiv rau compressive rog.

2. Flexural zog:

Flexural lub zog ntsuas cov khoom muaj peev xwm tiv thaiv kev khoov lossis deformation raws li cov khoom siv. RPPs pab txhawb kev txhim kho flexural zog hauv mortar los ntawm cov txheej txheem hauv qab no:

Nce Bond Strength:

RPPs txhim khu cov adhesion ntawm mortar Cheebtsam thiab substrate nto, ua rau muaj zog bonds thiab txo delamination. Qhov kev txhim kho daim ntawv cog lus no txhais tau tias muaj zog dua rau kev khoov thiab tensile kev nyuaj siab, yog li txhim kho lub zog flexural.

Enhanced Cohesion:

Lub cohesive zog ntawm RPP-hloov mortar pab faib cov ntaub ntawv loads ntau tusyees nyob rau hauv lub cross-section ntawm cov khoom. Qhov no txawm tias kev faib tawm txo qis hauv cheeb tsam kev ntxhov siab thiab tiv thaiv kev ua tsis tiav ntxov, ua rau muaj zog flexural ntau dua.

3. Adhesive zog:

Adhesive zog yog hais txog kev sib raug zoo ntawm mortar thiab substrate nto. RPPs ua lub luag haujlwm tseem ceeb hauv kev txhim kho cov nplaum nplaum los ntawm cov txheej txheem hauv qab no:

Txhim kho Adhesion:

RPPs txhawb kev ua kom zoo dua los ntawm kev tsim cov yeeb yaj kiab nyias, hloov tau yooj yim ntawm cov chaw substrate, uas txhim kho thaj chaw sib cuag thiab txhawb kev sib txuas ntawm kev sib txuas. Qhov no txhim kho adhesion tiv thaiv kev debonding thiab ua kom muaj kev sib raug zoo ntawm cov mortar thiab substrate.

Txo Shrinkage Cracks:

Qhov yooj yim thiab dej tuav cov khoom ntawm RPPs pab txo qis cov kab nrib pleb hauv mortar, uas tuaj yeem cuam tshuam lub zog nplaum. Los ntawm kev txo qis kev tsim thiab kev nthuav tawm, RPPs ua rau muaj zog thiab ruaj khov dua daim ntawv cog lus.

4. Impact Resistance:

Impact resistance ntsuas cov khoom muaj peev xwm tiv taus tam sim ntawd, muaj zog-zog cuam tshuam yam tsis muaj kev tawg lossis tawg. RPPs txhim khu kev cuam tshuam ntawm mortar los ntawm cov txheej txheem hauv qab no:

Nce Toughness:

RPP-hloov mortar nthuav tawm ntau dua toughness vim nws txhim kho yooj thiab ductility. Qhov no muaj zog toughness tso cai rau cov khoom nqus thiab dissipate lub zog cuam tshuam zoo dua, txo qhov kev pheej hmoo ntawm pob txha lossis tsis ua haujlwm thaum muaj kev cuam tshuam.

Enhanced Durability:

Lub durability imparted los ntawm RPPs prolongs lub neej kev pab cuam ntawm mortar, kom ntseeg tau ntev kev ua tau zoo nyob rau hauv tej yam kev mob nyuaj. Qhov no txhim kho durability txhais mus rau siab dua rau kev puas tsuaj, puas ntsoog, thiab lwm yam ntaub ntawv ntawm mechanical stress.

Hauv kev xaus, redispersible polymer hmoov ua lub luag haujlwm tseem ceeb hauv kev txhim kho lub zog ntawm mortar, suav nrog lub zog compressive, flexural zog, nplaum lub zog, thiab kev cuam tshuam. Los ntawm kev txhim kho cohesion, adhesion, thiab durability, RPPs pab rau txoj kev loj hlob ntawm high-kev ua tau zoo mortar formulations haum rau ntau yam kev siv ntawm kev tsim kho.