000002110 001__ 2110
000002110 005__ 20141118153442.0
000002110 04107 $$acze
000002110 046__ $$k2013-05-27
000002110 100__ $$aLEE, Wonjun
000002110 24500 $$aEFFECT OF PARTICLE SIZE DISTRIBUTION ON THE RHEOLOGICAL PROPERTIES OF SLAG CEMENT PASTE

000002110 24630 $$n1.$$pProceedings of the First International Conference on Concrete Sustainability
000002110 260__ $$bJapan Concrete Institute, Tokyo
000002110 506__ $$arestricted
000002110 520__ $$2eng$$aFor high durability and strength, decreasing of the water to binder ratio of cement is needed by using of fly ash, blast furnace slag as mineral admixture. And it is pointed out that the rheological property of cement is improved by controlling of particle size distribution of blast furnace slag. In this study, we investigated the effect of particle size distribution on the rheological properties of the slag cement paste by using of coarse and fine blast furnace slag particles. And we also ran computer simulation to analyze the correlation between experimental results of rheological properties and packing fraction of slag cement. Furthermore, we investigated correlation with plastic viscosity on the basis of the existing particle size distribution function. The hysteresis area was smaller by adding of coarse blast furnace slag particles. When the combination was based on a ratio of 20~25 vol% fine particles, 30~40 vol% OPC and 40~45 vol% coarse particles, a high fluidity and low yield stress was achieved. The plastic viscosity rises, as the n-value increases. Almost all samples indicated that the n-value had a correlation with plastic viscosity. However, when the amount of fine particles was over 30 vol%, plastic viscosity decreased though the n-value decreased. We found out the mixing ratio of cement and blast furnace slag for better packing fraction and rheological properties.

000002110 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000002110 653__ $$aslag cement, particle size distribution, Rheology, Fluidity

000002110 7112_ $$aFirst International Conference on Concrete Sustainability$$cTokyo (JP)$$d2013-05-27 / 2013-05-29$$gICCS13
000002110 720__ $$aLEE, Wonjun$$iLEE, Seungheun$$iSAKAI, Etsuo$$iMIYAUCHI, Masahiro$$iATARASHI, Daiki
000002110 8560_ $$ffischerc@itam.cas.cz
000002110 8564_ $$s1071696$$uhttp://invenio.itam.cas.cz/record/2110/files/S1-9-5.pdf$$y
             Original version of the author's contribution as presented on CD, .
            
000002110 962__ $$r2053
000002110 980__ $$aPAPER