000002077 001__ 2077
000002077 005__ 20141118153443.0
000002077 04107 $$acze
000002077 046__ $$k2013-05-27
000002077 100__ $$aISHIMATSU, Koichi
000002077 24500 $$aSEPARATION AND COLLECTION OF COARSE AGGREGATE FROM WASTE CONCRETE BY ELECTRIC PULSED POWER

000002077 24630 $$n1.$$pProceedings of the First International Conference on Concrete Sustainability
000002077 260__ $$bJapan Concrete Institute, Tokyo
000002077 506__ $$arestricted
000002077 520__ $$2eng$$aWaste concrete accounts for a substantial fraction of construction waste, and the recycling of waste concrete as concrete aggregate for construction is an important challenge associated with the rapid increase in the amount of waste concrete and the tight supply of natural aggregate. In this study, we propose a technique based on the use of high-voltage pulsed discharge and underwater pulsed electric discharge for separating and collecting aggregate from waste concrete with minimal deterioration of quality. By using this technique, the quality of the coarse aggregate separated and collected from concrete test specimens is comparable to that of coarse aggregate recycled by heating and grinding methods, thus satisfying the criteria in JIS A 5021 for the oven-dry density and the water absorption of coarse aggregate by advanced recycling.

000002077 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000002077 653__ $$aRecycled coarse aggregate, pulsed discharge, heating and grinding method, underwater pulsed electric discharge, aggregate quality evaluation

000002077 7112_ $$aFirst International Conference on Concrete Sustainability$$cTokyo (JP)$$d2013-05-27 / 2013-05-29$$gICCS13
000002077 720__ $$aISHIMATSU, Koichi$$iSHIGEISHI, Mitsuhiro$$iNAMIHIRA, Takao$$iIIZASA, Shinya
000002077 8560_ $$ffischerc@itam.cas.cz
000002077 8564_ $$s1662351$$uhttp://invenio.itam.cas.cz/record/2077/files/S1-4-2.pdf$$y
             Original version of the author's contribution as presented on CD, .
            
000002077 962__ $$r2053
000002077 980__ $$aPAPER