BR9913578A - Energy quantification method for composite materials - Google Patents

Energy quantification method for composite materials

Info

Publication number
BR9913578A
BR9913578A BR9913578-7A BR9913578A BR9913578A BR 9913578 A BR9913578 A BR 9913578A BR 9913578 A BR9913578 A BR 9913578A BR 9913578 A BR9913578 A BR 9913578A
Authority
BR
Brazil
Prior art keywords
acoustic
concrete
composite materials
energy
quantification method
Prior art date
Application number
BR9913578-7A
Other languages
Portuguese (pt)
Inventor
Marcos Ruben Bollati
Original Assignee
Sika Ag
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sika Ag filed Critical Sika Ag
Publication of BR9913578A publication Critical patent/BR9913578A/en

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
    • G01N33/38—Concrete; ceramics; glass; bricks
    • G01N33/383—Concrete, cement
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
    • G01N29/04—Analysing solids
    • G01N29/11—Analysing solids by measuring attenuation of acoustic waves
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2291/00—Indexing codes associated with group G01N29/00
    • G01N2291/01—Indexing codes associated with the measuring variable
    • G01N2291/014—Resonance or resonant frequency
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2291/00—Indexing codes associated with group G01N29/00
    • G01N2291/02—Indexing codes associated with the analysed material
    • G01N2291/023—Solids
    • G01N2291/0231—Composite or layered materials
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2291/00—Indexing codes associated with group G01N29/00
    • G01N2291/02—Indexing codes associated with the analysed material
    • G01N2291/025—Change of phase or condition
    • G01N2291/0251—Solidification, icing, curing composites, polymerisation

Abstract

Patente de Invenção: <B>"MéTODO DE QUANTIFICAçãO ENERGéTICA PARA MATERIAIS COMPóSITOS"<D>. Um método e um aparelho para a caracterização de materiais compósitos (2) são descritos. De acordo com a invenção, ondas acústicas são transmitidas através de um material compósito (2) e um oscilograma do sinal acústico é medido e analisado de modo a determinar os parâmetros estruturais e/ou mecânicos do material compósito (2). A invenção é particularmente útil para examinar concreto (2), argamassa ou gesso e em particular Concreto Compactado com Rolo (RCC). Em modalidades preferidas, uma energia acústica E e opcionalmente outras variáveis acústicas, tais como frequência, amplitude, intensidade ou a atenuação de sinal da onda acústica são derivadas do oscilograma e são correlacionadas com a elasticidade, densidade, resistência, tensão interna, imperfeições, descontinuidades, mudanças de fase (gasosa, líquida, sólida) e/ou tempo de pega do concreto (2). A invenção pode ser usada para monitorar o processo de pega e endurecimento de concretos (2) tal como RCC.Invention Patent: <B> "ENERGY QUANTIFICATION METHOD FOR COMPOSITE MATERIALS" <D>. A method and apparatus for the characterization of composite materials (2) are described. According to the invention, acoustic waves are transmitted through a composite material (2) and an oscillogram of the acoustic signal is measured and analyzed in order to determine the structural and / or mechanical parameters of the composite material (2). The invention is particularly useful for examining concrete (2), mortar or plaster and in particular Roller Compacted Concrete (RCC). In preferred embodiments, an acoustic energy E and optionally other acoustic variables, such as frequency, amplitude, intensity or signal attenuation of the acoustic wave are derived from the oscillogram and are correlated with elasticity, density, resistance, internal tension, imperfections, discontinuities , phase changes (gaseous, liquid, solid) and / or concrete setting time (2). The invention can be used to monitor the setting and setting process of concrete (2) such as RCC.

BR9913578-7A 1998-09-11 1999-09-10 Energy quantification method for composite materials BR9913578A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CO98052430A CO4810262A1 (en) 1998-09-11 1998-09-11 METHOD FOR ENERGETIC QUANTIFICATION OF COMPOSITE MATERIALS. . . .
PCT/IB1999/001527 WO2000016092A2 (en) 1998-09-11 1999-09-10 Energetic quantification method for composite materials

Publications (1)

Publication Number Publication Date
BR9913578A true BR9913578A (en) 2001-10-09

Family

ID=5331329

Family Applications (1)

Application Number Title Priority Date Filing Date
BR9913578-7A BR9913578A (en) 1998-09-11 1999-09-10 Energy quantification method for composite materials

Country Status (6)

Country Link
EP (1) EP1112493A2 (en)
CN (1) CN1317086A (en)
AU (1) AU5439699A (en)
BR (1) BR9913578A (en)
CO (1) CO4810262A1 (en)
WO (1) WO2000016092A2 (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6684701B2 (en) 2000-07-14 2004-02-03 Lockheed Martin Corporation System and method of determining porosity in composite materials using ultrasound
CN1924571B (en) * 2006-09-21 2010-06-02 浙江建设职业技术学院 Ultrasonic determination method of light-weight soil wave speed characteristic value
DE102012101944A1 (en) * 2012-02-10 2013-08-14 Mf Instruments Gmbh Device for the in situ characterization of the quality parameters and / or the properties of inorganic binder systems
WO2016026503A1 (en) * 2014-08-22 2016-02-25 Knauf Gips Kg Apparatus and method for blending loose rock material
EP3435044A1 (en) * 2017-07-27 2019-01-30 Aif Management Bvba Apparatus and method for performing an impact excitation technique
CN107478728B (en) * 2017-08-15 2021-02-12 重庆大学 Nondestructive testing method for composite insulator
CN109839254B (en) * 2019-03-22 2020-07-10 东北大学 Composite material thermal vibration fatigue test device and method based on reverse resonance
CN109900790B (en) * 2019-03-22 2021-04-02 东北大学 Composite material dynamic fatigue test device and method based on reverse resonance
CN113933386A (en) * 2020-07-13 2022-01-14 中国矿业大学(北京) Ultrasonic pulse energy method for dynamically monitoring concrete damage
CN112305074B (en) * 2020-10-28 2023-05-23 济南大学 Piezoelectric ultrasonic device for on-line monitoring of cement concrete hydration process

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU600438A1 (en) * 1976-08-03 1978-03-30 Вильнюсский Инженерно-Строительный Институт Ultrasonic concrete testing device
GB2136569B (en) * 1983-03-05 1987-02-25 Robert Joseph Savage Testing of structures
US4674334A (en) * 1986-05-13 1987-06-23 The United States Of America As Represented By The Secretary Of The Air Force Properties of composite laminates using leaky lamb waves
US5095465A (en) * 1990-01-05 1992-03-10 Board Of Regents The University Of Texas System In situ testing with surface seismic waves of materials having properties that change with time
US5165270A (en) * 1990-12-31 1992-11-24 Sansalone Mary J Non-destructive materials testing apparatus and technique for use in the field
US5614670A (en) * 1993-10-29 1997-03-25 Board Of Regents, The University Of Texas System Movable seismic pavement analyzer

Also Published As

Publication number Publication date
CN1317086A (en) 2001-10-10
CO4810262A1 (en) 1999-06-30
EP1112493A2 (en) 2001-07-04
WO2000016092A2 (en) 2000-03-23
AU5439699A (en) 2000-04-03
WO2000016092A3 (en) 2000-10-19

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Legal Events

Date Code Title Description
B11A Dismissal acc. art.33 of ipl - examination not requested within 36 months of filing
B11Y Definitive dismissal - extension of time limit for request of examination expired [chapter 11.1.1 patent gazette]