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Inorganic binder stable material non-uniform shrinkage measuring device and method

A technology of inorganic binders and stable materials, used in measuring devices, mechanical roughness/irregularity measurement, mechanical gap measurement, etc. Recordability, intuitive and accurate test results, and more effective test results

Pending Publication Date: 2022-05-27
YANSHAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This method can only detect the overall drying shrinkage of the beam-type specimen, but cannot directly observe the non-uniform shrinkage caused by the expansion of the material itself.

Method used

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  • Inorganic binder stable material non-uniform shrinkage measuring device and method
  • Inorganic binder stable material non-uniform shrinkage measuring device and method
  • Inorganic binder stable material non-uniform shrinkage measuring device and method

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Embodiment Construction

[0026] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, but not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

[0027] In the description of this application, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", The orientation or positional relationship indicated by "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the desc...

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Abstract

The invention discloses a device and a method for measuring non-uniform shrinkage of an inorganic binder stable material, and relates to the technical field of road instruments. The non-uniform shrinkage of the inorganic binder stable material can be directly detected, and more accurate index information is provided for pavement performance detection of a semi-rigid base. The non-uniform shrinkage measuring device for the inorganic binder stabilizing material comprises a test piece base, a measuring table, a vertical bracket, a transverse bracket and a transmission device, the test piece base is used for placing a to-be-tested beam type test piece; transverse guide rails are arranged on the side surfaces of the test-piece base; the transverse bracket is slidably connected with the test piece base; two ends of the vertical bracket are respectively connected with the transverse bracket and the measuring table; a displacement measuring device is arranged on the measuring table; a transmission device is also arranged on the test piece base; the transmission device can drive the transverse support to slide in the extending direction of the transverse guide rail. The invention further provides a measuring method based on the non-uniform shrinkage measuring device for the inorganic binder stable material.

Description

technical field [0001] The application relates to the technical field of highway instruments, and in particular, to a device and method for measuring the uneven shrinkage of an inorganic binder stabilized material. Background technique [0002] The semi-rigid base of the road is mainly formed by rolling with certain aggregate gradation and inorganic binder under the condition of optimal moisture content. After a period of hydration reaction, it becomes a semi-rigid structural layer. During this period of time, transverse cracks are often formed on the top surface of the base layer, and then reflected to the asphalt pavement to form reflective cracks, which reduces the durability, safety and stability of the road. [0003] The main reason for cracks in the base layer is that the moisture in the base layer is continuously evaporated, forming capillaries, which leads to the adsorption force on the surface of the material, which makes the inorganic binder stabilize the volume sh...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N33/42G01B5/14G01B5/28G01B21/16G01B21/30G01B21/32G06F17/18
CPCG01N33/42G01B21/32G01B21/30G01B21/16G01B5/14G01B5/28G06F17/18Y02A30/60
Inventor 敬超史文华王宁
Owner YANSHAN UNIV
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