| 摘要 |
PCT No. PCT/IL96/00042 Sec. 371 Date Jan. 6, 1998 Sec. 102(e) Date Jan. 6, 1998 PCT Filed Jul. 7, 1996 PCT Pub. No. WO97/02120 PCT Pub. Date Jan. 23, 1997A system is designed to measure concrete rheological properties which includes a concrete plant, a measuring unit and a mix changing unit. The measuring unit includes a surface in contact with a part of a mass of the concrete mix, a shearing unit for effecting shear deformation in the mass and at least one sensor which senses a measure of the force which is transferred to the surface by the concrete mass as a result of the shear deformation. The rheological profile is produced by: a) sensing at least one measure of the force which is transferred to the surface under at least two different stress states, b) determining i) the sensitivity of each of the at least one measure to a change in stress state and ii) the workability of the mix and c) creating the rheological profile from at least the sensitivity and workability.
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