Cov teebmeem ntawm HPMC ntawm kev tuav dej, thickening thiab fluidity ntawm mortar

Daim duab 1 qhia txog kev hloov ntawm cov dej tuav tus nqi ntawm mortar nrog cov ntsiab lus ntawmHPMC. Nws tuaj yeem pom los ntawm daim duab 1 tias thaum cov ntsiab lus ntawm HPMC tsuas yog 0.2%, cov dej tuav tus nqi ntawm mortar tuaj yeem txhim kho tau zoo; thaum cov ntsiab lus ntawm HPMC yog 0.4%, cov dej tuav tau mus txog 99%; cov ntsiab lus tseem nce ntxiv, thiab cov dej tuav tus nqi tseem nyob tas li. Daim duab 2 yog qhov hloov pauv ntawm mortar fluidity nrog cov ntsiab lus ntawm HPMC. Nws tuaj yeem pom los ntawm daim duab 2 tias HPMC yuav txo qhov fluidity ntawm mortar. Thaum cov ntsiab lus ntawm HPMC yog 0.2%, qhov txo qis hauv fluidity tsawg heev. , nrog kev nce ntxiv ntawm cov ntsiab lus, qhov fluidity poob qis heev. Daim duab 3 qhia txog kev hloov ntawm mortar sib xws nrog cov ntsiab lus ntawm HPMC. Nws tuaj yeem pom los ntawm daim duab 3 tias tus nqi sib xws ntawm cov tshuaj khib nyiab txo qis nrog qhov nce ntawm cov ntsiab lus ntawm HPMC, qhia tias nws cov fluidity zuj zus tuaj, uas zoo ib yam nrog cov txiaj ntsig kev ntsuas fluidity. Qhov txawv yog tias cov tshuaj khib nyiab Cov nqi sib xws txo qis dua thiab qeeb qeeb nrog qhov nce ntawm HPMC cov ntsiab lus, thaum qhov kev txo qis ntawm cov tshuaj khib nyiab tsis ua kom qeeb qeeb, uas tej zaum yuav tshwm sim los ntawm cov qauv kev sim sib txawv thiab txoj hauv kev sib xws thiab fluidity. Kev tuav dej, fluidity thiab sib xws Cov txiaj ntsig kev sim qhia tau tiasHPMCNws muaj cov dej tuav tau zoo thiab ua kom tuab ntawm cov tshuaj khib nyiab, thiab cov ntsiab lus qis ntawm HPMC tuaj yeem txhim kho cov dej tuav tus nqi ntawm mortar yam tsis tas yuav txo nws cov fluidity.

Fig. 1 Dej-tuav tus nqi ntawm mortars

Fig. 5 Flow of mortars