Novel test mold for concrete crack detection test and operation method

Abstract

The invention discloses a novel test mold for a concrete crack detection test and an operation method. The novel test mold comprises a square box, a lifting structure is installed at the bottom of the square box and comprises a bottom plate, a bent rod, a sliding plate, a threaded rod, a short plate and a protruding block, the outer wall of the bottom plate is slidably connected with the bottom of the square box in a clamped mode, the outer side of the bottom plate is connected with the bottom of the inner side of the bent rod in a welded mode. The novel test mold saves the trouble of digging, reduces the difficulty of operation, and improves the practicability. A spring on the other side is stretched, then a grip is loosened, and the spring provides resilience force, so that the square box returns to the original position to generate vibration, vibration is achieved, the trouble of carrying is omitted, time is saved, working efficiency is improved, use is convenient, leached lubricating oil is brushed on the inner wall of the square box, operation is simple, brushing missing is prevented, normal demolding is ensured, then bolts penetrate through straight plates to be fixed to an external connecting plate, the square box is prevented from moving during vibration, the trouble of manual supporting is omitted, the use difficulty is reduced, and application and popularization are facilitated.

Description

technical field [0001] The invention relates to the technical field of a test mold for a new concrete crack detection test, in particular to a new test mold for a concrete crack detection test and an operation method. Background technique [0002] Ordinary concrete refers to the artificial stone made of cement as the main cementitious material, mixed with water, sand, stones, chemical admixtures and mineral admixtures when necessary, mixed in an appropriate proportion, and uniformly stirred, compacted and cured. . Concrete is mainly divided into two stages and states: the plastic state before setting and hardening, that is, fresh concrete or concrete mixture; the hard state after hardening, that is, hardened concrete or concrete. The strength grade of concrete is divided by the standard value of cubic compressive strength. The strength grade of ordinary concrete in China is divided into 14 grades: C15, C20, C25, C30, C35, C40, C45, C50, C55, C60, C65, C70, C75 and C80 , Th...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a new type of test mold for concrete crack detection test and operation method, to solve the problem of taking molds when using the existing test mold for concrete crack detection test proposed in the above-mentioned background technology. Take, the operation is difficult, which reduces the problem of practicability

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