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Method for field non-destructive measurement of porous concrete permeation rate

A technology of porous concrete and permeability rate, which is applied in the direction of permeability/surface area analysis, measuring device, suspension and porous material analysis, etc. It can solve the problems of low measurement accuracy, low efficiency, and high cost of coring measurement, and improve measurement accuracy. , Reduce accidental errors and reduce costs

Inactive Publication Date: 2019-07-19
科利尔环保科技有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Coring measurement is costly, inefficient, and will adversely affect the concrete structure, so it is not suitable for multiple measurements during maintenance
The existing on-site measurement methods have low measurement accuracy, and it is difficult to measure the horizontal and vertical permeability rates separately

Method used

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  • Method for field non-destructive measurement of porous concrete permeation rate
  • Method for field non-destructive measurement of porous concrete permeation rate
  • Method for field non-destructive measurement of porous concrete permeation rate

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0026] A method for on-site non-destructive measurement of porous concrete penetration rate is characterized in that it comprises the following steps:

[0027] (1) Vertical pipe installation

[0028] With the measuring point as the center, the hollow vertical pipes of different diameters are fixed concentrically with glue.

[0029] (2) Sealing inspection

[0030] Before the penetration test, it should be ensured that the contact position between the standpipe and the porous concrete surface is well sealed and there is no water leakage. If there is leakage, the glue must be reapplied until a good seal is obtained.

[0031] (3) Water level and time measurement

[0032] A vernier caliper is placed in the inner standpipe. Inject about 5.4L of water into the inner standpipe, and record the water surface heights of 273.2mm and 102.0mm in the inner standpipe at the time of 5s and 125s respectively as required. During the measurement process, water is injected into the outer vert...

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Abstract

The invention discloses a method for field non-destructive measurement of a porous concrete permeation rate, and relates to the technical field of the porous concrete. The method comprises the following steps: (1) mounting a riser; (2) checking leakproofness; (3) measuring water level and time; and (4) determining a permeation rate. The method disclosed by the invention can realize field quick nondestructive measurement of the porous concrete permeation rate, the efficiency and the precision of the field measurement are improved, and the measurement cost is saved.

Description

technical field [0001] The invention relates to the technical field of porous concrete, in particular to an on-site non-destructive measurement method for the permeation rate of porous concrete. Background technique [0002] Permeation rate is one of the important performance indicators of porous concrete. During the use of porous concrete, the clogging of pores by impurities will significantly reduce its permeability coefficient and affect its performance. Quick determination of water permeability on site is of great significance to the maintenance of porous concrete. There are two methods for measuring the water permeability of porous concrete: coring and on-site measurement. Coring measurement is costly, inefficient, and will have adverse effects on concrete structures, so it is not suitable for multiple measurements during maintenance. The existing on-site measurement methods have low measurement accuracy, and it is difficult to measure the horizontal and vertical per...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N15/08
CPCG01N15/08
Inventor 朱亚洲杨张兵
Owner 科利尔环保科技有限责任公司