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U Box Apparatus
Standards: EN 11044
General Descriptions: The U Shape box apparatus is used to determine the filling and passing ability of self-compacting concrete (SCC). The U box is made of stainless steel consisting of three 12 mm dia. Rebars. The U box is mounted on a frame with a fixing mechanism. U-BOX, stainless steel made, with inside smooth walls, equipped of a flow obstacle formed by four vertical reinforcement bars. The bars have dia.10 mm and the light between them is 35 mm. A gate in guillotine form splits the vertical portion of the box from the horizontal one.
Dimensions: 480 x 250 x 680 mm
Weight: 20 kg approx.
u box apparatus, fill box test, u box test procedure, v funnel test, j ring test, l box test apparatus, fill box test scc, self compacting concrete apparatus.
u box apparatus is used to measure the filing ability of self compacting concrete. The u box apparatus consists of a vessel that is divided by a middle wall into two compartments; an opening with a sliding gate is fitted between the two sections. Reinforcing bar with nominal diameter of 134 mm are installed at the gate with centre to centre spacing of 50 mm. this create a clear spacing of 35 mm between bars. The left hand section is filled with about 20 liter of concrete then the gate is lifted and the concrete flows upwards into the other section. The height of the concrete in both sections is measured. u box apparatus.