Keyu Instrument YJ-160 Pressure Slurry Steel Wire Interbleeding Rate Tester

YJ-160 type grouting agent steel wire bleeding rate tester, Keyu Instrument YJ-160 type grouting agent steel wire bleeding rate tester

Execution inspection basis: JTG/T F50-2011 "Technical Specification for Construction of Highway Bridges and Culverts"
Standard TB/T3192-2008 "Technical Conditions for Grouting of Railway Post tensioned Prestressed Concrete Beam Pipeline

Keyu Instrument YJ-160 Pressure Slurry Steel Wire Interbleeding Rate Tester

F6.1 Container

The test container is shown in the figure, made of organic glass with a sealed lid, with an inner diameter of 100mm and a height of 160mm. A bundle of 7-wire steel strands is placed in the middle of the container. The height of the steel wire bundle exposed inside the container is 10-30mm.

Figure F6.1 Schematic diagram of steel wire bleeding test

1-7 φ 5 steel strand, 2- bleeding after a period of rest, 3- grouting material

F6.2 Test Procedure

The test container is placed on a horizontal surface, and the stirred slurry is injected into the container with a volume of about 800ml, and the accurate volume of the slurry is recorded. Then tightly seal the sealing cover and insert the steel wire bundle in the center position. After standing for 3 hours, use a straw to suck out the amount of water that separates from the surface of the slurry, transfer it into a 10ml measuring cylinder, and measure the amount of bleeding V1.

F6.4 Calculation Method

Bleeding rate=V1/V0 × 100%

In the formula: V1- the volume of upper bleeding of the slurry;

V0- volume of slurry before testing.