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Method for evaluating strength change of cement-based material along with time

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

Inactive Publication Date: 2019-11-01
THE ARCHITECTURAL DESIGN & RES INST OF ZHEJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

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

Method used

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  • Method for evaluating strength change of cement-based material along with time
  • Method for evaluating strength change of cement-based material along with time
  • Method for evaluating strength change of cement-based material along with time

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Embodiment 1

[0017] According to the reference "Zhang Liang, Nano-SiO 2 Influence on the material properties of CA cement-based materials and research on the mechanism of action, master's degree thesis, Zhejiang University, 2017 "Data in Figure 4.8(c), cement-based materials under compressive loads of 3d, 7d, 14d, 28d and 56d Table 1 shows the strength measurements and the calculated Fréchet distribution parameters of the strength measurements of each group of cement-based materials.

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

[0019] f x (d)=0,

[0020] f a (d)=0.0288d+7.8,

[0021] f s (d)=12.36251*(1-exp(-0.1383d)).

[0022] Table 1 The measured value (MPa) of cement-based material strength at different ages and the calculated Fréchet distribution parameters

[0023]

[0024]

[0025] According to the relationship function obtained from the above steps, the reliability R corresponding to the strength σ of the cement-based material obtain...

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Abstract

The invention discloses a method for evaluating strength change of a cement-based material along with time. The cement-based material has wide application in modern building engineering and infrastructure. The mechanical property of the cement-based material has important influence on healthy serving and safe operation of the infrastructures such as civil engineering, building, water conservancy,traffic and energy. According to the method of the invention, Frechet distribution is utilized for describing the distribution rule of the measured value of the cement-based material strength, and themethod for evaluating strength change of the cement-based material along with time is presented, thereby supplying an important technical support for structure application and performance analysis ofthe material in modern engineering construction and infrastructure.

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 strength 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 strength of cement-based materials with age, and to provide important technical support for the structural application and performance analysis of such materials in modern infrastructure. For this reason, the present invention adopts fo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G16C60/00G01N33/38G01N3/00
CPCG16C60/00G01N33/383G01N3/00
Inventor 张正雨徐松杰
Owner THE ARCHITECTURAL DESIGN & RES INST OF ZHEJIANG UNIV
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