Mold for concrete axial tension test piece and rod piece pre-embedding method by using the mold

An axial stretching and concrete technology, applied in the field of pre-embedding of rods and dumbbell-shaped molds, can solve the problems of difficulty in ensuring verticality, complicated positioning pre-embedding procedures, and poor axial pulling effect, and achieves easy quality assurance and verticality. Good effect and easy processing effect

Active Publication Date: 2014-12-24
青岛理正建设科技有限公司
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  • Abstract
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  • Application Information

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Problems solved by technology

At present, there are few types of molds used to make embedded concrete axial tension test pieces, and the axial tension effect is ...

Method used

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  • Mold for concrete axial tension test piece and rod piece pre-embedding method by using the mold
  • Mold for concrete axial tension test piece and rod piece pre-embedding method by using the mold
  • Mold for concrete axial tension test piece and rod piece pre-embedding method by using the mold

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Embodiment Construction

[0041] The concrete axial tensile test piece mold of the present invention comprises a bottom plate 3, the opposite sides of the bottom plate 3 are respectively fixedly connected to the side plates 1, and the other two sides opposite to the bottom plate 3 are provided with end plates 2, bottom plate 3, and side plates 1 Combined with the end plate 2 to form a hollow box with an opening at the top, the opposite sides of the two side plates protrude in the middle to form a boss 11, and the two sides of each side plate 1 are respectively provided with a protruding end plate 2 Planar socket 6, the horizontal rod 4 is connected between the sockets on both sides of the board, the middle of the horizontal rod is provided with a through hole I9, and the vertical rod 5 passes through the through hole and is plugged into the fixed hole 12 provided on the bottom plate , the end plate 2 is limited by the horizontal bar 4 and the vertical bar 5, and each end plate 2 is respectively provided...

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Abstract

The invention relates to a test mold, and particularly relates to a dumbbell-shaped mold used for concrete uniaxial tension test, and a rod piece pre-embedding method. The mold for the concrete axial tension test piece comprises a bottom plate. Two opposite sides of the bottom plate are fixedly connected with side plates; the other two opposite sides of the bottom plate are provided with end part plates; the bottom plate, the side plates and the end part plates are combined to form a hollow box with the top opening; the opposite sides of the two side plates are convex at the middle parts to form lug bosses; two sides of each side plate are provided with insert holes protruding out of the planes of the end part plates; a horizontal rod is connected between the directly opposite insert holes of the two side plates; a through hole I is formed in the middle of the horizontal rod; a vertical rod penetrates through the through hole and then is inserted in a fixed hole arranged in the bottom plate; the end part plates are limited by the horizontal rod and the vertical rod; a through hole II is formed in each end part plate respectively; and pre-embedding pieces are inserted into the through holes II. The manufacturing precision of the test piece is high and a flow for manufacturing the test piece is simple.

Description

technical field [0001] The invention relates to a test mold, in particular to a dumbbell-shaped mold for concrete uniaxial tension test and a pre-embedded method for rods. Background technique [0002] Axial tensile test is the most basic test method, which can directly and accurately measure the axial tensile strength of concrete, and is also the only feasible method to obtain the uniaxial tensile stress-strain relationship curve. The axial tension test has important theoretical and practical significance in the research of various concrete tensile performance parameters and the fracture performance and mechanism of various material components. In recent years, more and more attention has been paid to the durability of concrete structures under the combined effects of mechanical loads and environmental factors. The durability of concrete structures under uniaxial tension and compression stresses can directly reflect the impact of stress levels on structural life. Impact. ...

Claims

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Application Information

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IPC IPC(8): G01N1/28
Inventor 姜福香王玉田赵铁军
Owner 青岛理正建设科技有限公司
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