| 摘要 |
Process for homogeneously incorporating fibrous reinforcing material into a matrix of pastes of cementing materials comprises, withdrawing from a supplying station a stream of cementing material paste containing a proportionate layered amount of segmented fibrous material, wherein the layers of fibrous material are uniform layers alternating with layers of cement paste, gravity flowing said stream under laminar flow conditions along a succession of stream lengths flowing in vertically spaced-apart slopes while the above mentioned laminar-flow stream lengths undergo vibration, free-fall discharging from the downstream end of an upper stream length the cement paste onto the upstream end of a stream length flowing by gravity and under vibration along a next succeeding lower slope, wherein the direction of flow of a successive vertically spaced apart stream lengths is in opposite direction. Each laminar-flow stream length, in thin layer and under vibration, takes place along an inclined tray or channel. The trays may have parallel side walls, or their side walls may uniformly reduce their separation from each other downstream, so that the bottoms of the trays are trapezoidally shaped planes. |
