Improved concrete prismoid flexural resistance elasticity modulus measuring device

Abstract

The invention belongs to the technical field of building material detection instruments, and particularly relates to an improved concrete prismoid flexural resistance elasticity modulus measuring device. The device comprises an anchor bolt, a support, a cross beam, a high-precision displacement meter, a corner brace, a semicircular clamp and the like. A concrete prismoid and the cross beam on oneside are fixed through the anchor bolt and a nut, and the displacement meter is placed in a semicircular groove in the middle of the cross beam and fixed through the semicircular clamp and the bolt which are the same in size. And a tail end of a telescopic rod of the displacement meter extends into a cylindrical anti-slip groove at the bottom of a hexagon bolt of the device with a lower part capable of being adjusted up and down so that the displacement meter is prevented from slipping in an experiment process to influence experiment precision. In the invention, the displacement meter can be firmly fixed on the cross beam supported on a side surface of the concrete prismoid, problems that an initial retraction distance of the displacement meter is uncontrollable and a telescopic directionis single due to limitation of a peripheral space of the displacement meter in a measurement process of a traditional measurement instrument are solved, and measurement precision is improved.

Description

technical field [0001] The invention belongs to the technical field of building material detection instruments, and in particular relates to an improved measuring device for the flexural modulus of elasticity of a concrete prism and an installation method thereof. Background technique [0002] Concrete is one of the most important contemporary civil engineering materials. It is an artificial stone made of cementing materials, aggregates and water prepared in a certain proportion, stirred and vibrated, and cured under certain conditions. Concrete has the characteristics of abundant raw materials, low price, and simple production process, so its consumption is increasing; at the same time, concrete also has the advantages of high compressive strength, good durability, and a wide range of strength grades. It is the most widely used and most used building material. It is not only used in various civil engineering, but also in shipbuilding, machinery industry, marine development,...

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Problems solved by technology

[0004] The purpose of the present invention is to overcome the deficiencies in the prior art and provide an improved concrete prism flexural modulus measuring device. The present invention can firmly fix the displacement meter on the crossbeam supported by the side of the concrete prism. Solve the problem that the initial retraction distance of the displacement meter is uncontrollable and the expansion and contraction direction is single due to the limited space around the displacement meter in the traditional measuring instrument during the measurement process, and improve the measurement accuracy

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