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Brittle Matrix Composites
Dominik Logoń
其他書名
The measurement of sedimentation of cement mix components using D-cube electrical resistance tests
出版Elsevier Inc. Chapters, 2012-11-12
主題Technology & Engineering / Materials Science / General
ISBN01280903089780128090305
URLhttp://books.google.com.hk/books?id=IpJ2DAAAQBAJ&hl=&source=gbs_api
EBookSAMPLE
註釋The paper presents the methods of controlling sedimentation of cement mix using D-cube flow, slump, cone immersion and electrical resistance tests. These methods make it possible to control the sedimentation of aggregates and fibers, the optimization of different admixtures and additives and the rheological properties of cement mixes. The electrical resistance test for cement composites was modified. The cube (150x 150x 150mm) was equipped with two electrodes to measure the resistance of the mix. For sedimentation measurement electrodes were placed in the upper and bottom part of the mix. Measured changes of the resistance at different depths of the mix give the information about the sedimentation of components. The main advantage of the D-cube (150x150x150 mm) flow, slump and cone immersion tests is the ability to do it without advanced measuring devices and the fact that one method is sufficient to compare the rheological properties of cement pastes, mortars and concretes.