Centrifugal concrete strength testing test mold and centrifugal concrete strength testing method

Abstract

The invention discloses a test mold for detecting the strength of centrifugal concrete and a detection method for the strength of centrifugal concrete. The device comprises a bottom plate, a top plate, two side plates, and two end plates positioned on two ends of the two side plates, the method comprises the following steps: performing centrifugal treatment of the same technique by installing a tensioning nut on a molded pipe pile and putting on a centrifugal machine; and enabling the axis of the tensioning nut and a cavity to be coincided after penetrating the axes of the top plate and the bottom plate so that the concrete in the test mold can be subjected to even centrifugal force under centrifuging action, thus finally forming the practical strength of the centrifuged concrete for the pipe pile, the test result obtained by testing the prepared concrete test block is closer to the real strength parameter of the concrete for the pipe pile.

Description

Technical field [0001] The invention relates to a technique for detecting the strength of concrete, in particular to detecting the strength of centrifugal concrete, and in particular to a test model for detecting the strength of centrifugal concrete and a method for detecting the strength of centrifugal concrete. Background technique [0002] At present, the testing method of concrete for prestressed concrete pipe piles is based on the "Test Methods for Mechanical Properties of Ordinary Concrete" GB / T50081-2002, that is, the mixed concrete is directly loaded into the concrete triple test form, and the pipe piles are vibrated by inserting and vibrating. After curing with the same process, the compressive strength value of the standard cube represents the strength value of prestressed concrete. However, after centrifugation, the water-cement ratio of the concrete used for prestressed high-strength concrete pipe piles becomes smaller. Due to the different centrifugal process, the st...

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Problems solved by technology

However, after the concrete used for prestressed high-strength concrete pipe piles is centrifuged, the water-cement ratio becomes smaller, and the structure and compactness of the concrete due to different centrifugation processes have changed greatly. The prestressed high-strength concrete pipe piles after centrifugation The actual strength of the concrete on the stress surface of the pipe pile is an important quality index to ensure the prestressed high-strength concrete pipe pile, so the test results of this method cannot represent the actual strength of the prestressed high-strength concrete pipe pile after concrete centrifugation, and cannot be objective The concrete strength of the prestressed high-strength concrete pipe pile body and the force surface of the pipe pile after the ground reaction is centrifuged, so there is an urgent need for a detection method that can measure the strength of centrifugal concrete

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