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Method for evaluating elasticity modulus change of cement-based material along with age

A technology of cement-based materials and elastic modulus, applied in the direction of analyzing materials, material inspection products, measuring devices, etc., to achieve the effect of strong applicability, high flexibility, and small constraints

Inactive Publication Date: 2019-11-05
THE ARCHITECTURAL DESIGN & RES INST OF ZHEJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, there is still a lack of effective methods for evaluating the distribution and evolution of the elastic modulus of cement-based materials at different ages.

Method used

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  • Method for evaluating elasticity modulus change of cement-based material along with age
  • Method for evaluating elasticity modulus change of cement-based material along with age
  • Method for evaluating elasticity modulus change of cement-based material along with age

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Embodiment 1

[0017] According to the reference "Zhang Liang, Nano-SiO 2 Influence on the performance of CA cement-based materials and research on the mechanism of action, master's degree thesis, Zhejiang University, 2017 "Data in Figure 4.10(c), cement-based materials under compressive loads of 3d, 7d, 14d, 28d and 56d The measured values ​​of elastic modulus and the calculated Fréchet distribution parameters of the measured values ​​of elastic modulus of each group of cement-based materials are shown in Table 1.

[0018] According to the data in Table 1, establish the relationship function:

[0019] f x (d)=0,

[0020] f a (d)=-0.0657d+22,

[0021] f s (d)=1.61173-0.50574*0.89632^d.

[0022] Table 1 Measured values ​​(GPa) of elastic modulus of cement-based materials at different ages and calculated Fréchet distribution parameters

[0023]

[0024]

[0025] According to the relationship function obtained from the above steps, the reliability R corresponding to the elastic mod...

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Abstract

The invention discloses a method for evaluating tan elasticity modulus change of a cement-based material along with the age. The cement-based material is widely applied to modern constructional engineering and infrastructures. The mechanical property of the cement-based material has great influence on healthy service and safe operation of infrastructures such as civil engineering, buildings, waterconservancy, traffic and energy. Frechet distribution is innovatively adopted to describe the distribution rule of the measured value of the elasticity modulus of the cement-based material, the evaluation method of the elasticity modulus of the cement-based material along with the age change is invented, and important technical support is provided for structural application and performance analysis of the material in modern engineering construction and infrastructures.

Description

technical field [0001] The invention patent belongs to the technical field of performance evaluation of cement-based materials. Background technique [0002] Cement-based materials are widely used in modern engineering construction and infrastructure. The mechanical properties of cement-based materials have a significant impact on the healthy service and safe operation of civil engineering, construction, water conservancy, transportation, energy and other infrastructure. However, there is still a lack of effective methods for evaluating the distribution and evolution of the elastic modulus of cement-based materials at different ages. Contents of the invention [0003] The purpose of the present invention is to provide a method for evaluating the change of elastic modulus of cement-based materials with age, so as to provide important technical support for the structural application and performance analysis of such materials in modern infrastructure. For this reason, the p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/50G06F17/15G01N33/38
CPCG01N33/383G06F17/15
Inventor 张正雨徐松杰
Owner THE ARCHITECTURAL DESIGN & RES INST OF ZHEJIANG UNIV